Trouble Godes

DiagnosticTrouble GodesFault locations and probable causestr Flash, MIL and EOBD codestr Engine management systemstr Transmissionstr lmmobilizersE Data link connector locationsPetrol and Diesel Gars, MPVs, 4x4s and LGVs igg4-2004

1993-95 VAG MPI1991 -07192 Bosch Mono-Motron~c MA1.2.180 1,612,O 08/92-95 Bosch Mono-Motronic MA1.2.3 13380 1,9 TDI 1991 -06193 Bosch EDC 1.2.3141619 13580 1,9 TDI 07/93-96 Bosch EDC 1.3.213 9480 2,O 1991-96 VAG Digifant ML5.7 9480 2,O 16V 1991-96 Bosch KE Motronic 1.211.2.111.2.2 13980 2.612.8 1991 -96 VAG MPI 94100 2,O 1991 -92 Bosch KE Motronic 1.211.2.111.2.2 139100 2,O 1991 -07192 Bosch Mono-Motronic MA1.2.1 130100 2,O 08/92-94 Bosch Mono-Motronic MA1.2.3 133100 2.0 1992-94 VAG Diaifant " ML5.7 94100 2,O 16V 1992-94 Bosch KE Motronic 1.211.2.111.2.2 139100 2,5 TDI 1990-94 Bosch EDC 1.2.3/4/6/9 135100 2,612.8 1991-94 VAG MPI 94100 4.2 1991 -94 Bosch Motronic M2.4.1 94A2 2000-04 All systems 94A3 1996-03 All systems 94A4lS4 1994-04 All svstems 94A6 1.8 1995-97 Bosch Motronic M3.2.1 94A6 2,O 1994-97 VAG Digifant ML5.7 94A6 2,O 1994-97 Bosch Mono-Motronic MA1.2.3 133A6 2.0 16V 1994-97 Bosch KE Motronic 1.211.2.111.2.2 139A6 2,5 TDI 1994-04 All systems 94A6 2,612,8 1994-97 VAG MPI 94A6IAllroad 1997-04 All systems 94A8 1994-02 All svstems 94Cabriolet 1,8 1997-00 Bosch Motronic M3.8.2 94Cabriolet 1,9 TDI 1995-00 Bosch EDC 1.3.311.4 94Cabriolet 2.0 1991 -96 VAG Diaifant ML5.7 94Cabriolet 2.612.8 1991 -00 VAG MPI 94-- -Coupe 2,O1991 -96 VAG Digifant ML5.7 94Coupe 2,O 16V1991 -96 Bosch KE Motronic 1.211.2.111.2.2 139Coupe 2,612.8 1991 -96 VAG MPI 94S3 1999-03 All systems 94S6 2,2 1994-96 Bosch Motronic M2.31.2 142

Engine management IModel Year System PawS6 4,2 1994-04 All systems 94S8 1999-03 All systems 94TT 1998-04 All systems 94

Model: A2 A31S3 80 1,612,012,612,8 80 1,9 TDI (07193 -+) A41S4 100lA6 1,812,012,612,814,2 A6 2,5 TDIA6IS6IAllroad A81S8 CoupelCabriolet 1,812,012,612,8 Cabriolet 1,9 TDI TTYear: 1 991 -04Engine'Ode:IZ, AAH, AAT, ABC, ABK, ABZ, ACK, ACZ, ADA, ADP, ADR, AEB, AEC, AEH, AEL, AEW, AFB, AFF, AFN,AFY, AGA, AGB, AGN, AGR, AGU, AHC, AHF, AHH, AHK, AHL, AHU, AJG, AJK, AJL, AJM, AJP, AJQ, AKC,AKE, AKG, AKF, AKH, AKJ, AKL, AKN, ALF, ALG, ALH, ALT, ALW, ALZ, AMF, AMK, AML, AMM, AMU, AMX,ANA, ANB, ANK, ANP, ANY, APB, APF, APG, APP, APR, APS, APT, APU, APX, APY, APZ, AQA, AQD, AQE,AQF, AQG, AQH, AQJ, ARE, ARG, ARH, ARJ, ARM, ARS, ARU, ARX, ARY, ARZ, ASG, ASJ, ASM, ASN, ASV,ATD, ATJ, AUA, AUM, AUQ, AVB, AVF, AVG, AVJ, AVN, AVU, AW, AWN, AWT, AWX, AXR, AYM, AZA, AZC,AZR, BAD, BAM, BAU, BBD, BBJ, BBY, BCZ, BDG, BDH, BDV, BFC, BFQ, BHESystem: Bosch EDC11.3.1121311.4 Bosch EDC 15MIPN Bosch Motronic Bosch Motronic M2.4.1Bosch Motronic M3.213.2.1 Bosch Motronic M3.8.21314 Bosch Motronic M5.41.1Bosch Motronic ME7.017.1/7.517.5.10 Bosch MSA 12115.5 Siemens Simos VAG Digifant ML5.7VAG MPIEngine managementA2, A4/S4 2000+, AG/SG/Allroad 1997- - fascia, driver's side A3/S3 - centre console1 I80, Coup6, Cabriolet - in underbonnet fuseboxlrelay plate A41S4 1994-00 - centre console, rearII

Model. A2 A31S3 80 1,612,012,612,8 80 1,9 TDI (07193+) A41S41001A6 1,812,012,612,814,2 A6 2,s TDI A6IS6IAllroad A81S8AUDICoupelCabriolet 1,812,012,612,8 Cabriolet 1,9 TDI lTEngine management1001A61S6 4997 - in underbonnet relay plateTT - fascia, driver's sideA81S8 - under front ashtrayGeneral informationr~: Refer to the front of this manual for general test conditions.terminology, detailed descriptions of wiring faults and ageneral trouble shooter for electrical and mechanical faults.[; Carry out road test for at least 10 minutes.:? Automatic transmiss~on in 'P' or 'N'.n If engine does not start. Crank engine for 6 seconds. Leaveignition sw~tched ON.Accessing and erasingThe engine control module (ECM) fault memory can only beaccessed and erased using diagnostic equipmentconnected to the data link connector (DLC).NOTE: Self-diagnosis output using 4-digit trouble codesmay not display all available diagnostic information(early models).

AUDlModel A2 A363 80 1,6/2,012,612,8 80 1,9 TDI (07193 +) A4641001A6 1,812,012,6/2,8/4,2 A6 2,s TDI A6IS6IAllroad A81S8CoupelCabriolet 1,812,0/2,6/2,8 Cabriolet 1,9 TDI lTEngine managementTrouble code identificationVAG type4-digitFault locationProbable causeEngine control module (ECM) -defectiveVehicle speed sensor (VSS)ldle speed control (ISC) actuatorECMI Wiring, speedometer, VSSThrottle valve tightlsticking, wiring, multi-plug incorrectly wired,ISC actuatorCrankshaft position (CKP) Air gap, metal particles, insecure sensorlrotor, wiring, CKP sensorsensorCamshaft position (CMP) sensor Air gap, insecure sensorlrotor, wiring, poor connection, fuse,I distributorlcamshaft alignment, CMP sensorClosed throttle position (CTP) Accelerator cable adjustment, CTP switch adjustment, Gring, CTP switchswitchKnock control - control limitexceededI ECMKnock sensor (KS) 1 1 Wiring, KS, ECMKnock sensor (KS) 2Throttle position (TP) sensorMaximum engine RPMexceededManifold absolute pressure(MAP) sensorIdle speed control (tSC)Wiring, KS, ECMWiring, poor connection, TP sensorI Incorrect gear shift, CKPIRPM sensorTC wastegate regulating valve, hose connection(s), oil contamination,valve timing, poor connection, wiring, MAP sensor, ECMIntake leaklblockage, throttle valve tightlsticking, IAC valve orISC actuatorlposition sensorEngine control module (ECM) - Fuse, alternator, battery, current draw with ignition OFF, engine controlsupply voltagerelay, wiringMixture adjustment resistorInstrument panel, fuelconsumption signalEngine coolant temperature(ECT) sensorEnginelgearbox electricalconnectionIntake air temperature (IAT)sensorVolume air flow (VAF) sensorMass air flow (MAF) sensorHeated oxygen sensor(H02S) - lambda controlHeated oxygen sensor (H02S)Exhaust gas recirculationtemperature (EGRT) sensorIntake air temperature (IAT)sensorMixture control (MC)Wiring, mixture adjustment resistorWiring short to positive, instrument panelWiring, poor connection, ECT sensorWiring, transmission faultWiring, poor connection, IAT sensorlntake leak, wiring, VAF sensorIntake leak, wiring, MAF sensorHeating inoperative, intakelexhaust leak, misfire, fuel level low, fuelpressurelpu~np, injector(s), EVAP canister purge valve, MAF sensorfilament burn-off, wiring, H02SWiring, H02S, heating inoperative, fuel level lowWiring, EGRT sensorWiring, poor connection, IAT sensorFuel level low, fuel pressurelpump, intakelexhaust leak, misfire,MAF sensor filament burn-off, H02S, EVAP canister purge valve,injector(s), excessive fuel in engine oilOxygen sensor heater relay I Wiring, oxygen sensor heater relay--

Model: A2 A363 80 1,612,012,612,8 80 1,9 TDI (07193 +) A41S41001A6 1,812,0/2,6/2,814,2 A6 2,s TDI A6IS6IAllroad A81S8CoupelCabriolet 1,8/2,012,6/2,8 Cabriolet 1,9 TDI lT'IG type4-digit( Fault locationProbable cause43124332 14343441 1Exhaust gas recirculation (EGR)solenoidWiring, EGR solenoidEngine control module (ECM) - Wiring, ECM controlled componentsoutput stagesEvaporative emission (EVAP)canister purge valveInjector 1Wiring, fuse, EVAP canister purge valveWiring, fuse, injector441 2 ( Injector 2 I Wiring, fuse, injector441 3 I Injector 3 I Wiring, fuse, injector4414 I Injector 4 ( Wiring, fuse, injector442 14422Injector 5Injector 64431 I Idle air control (IAC) valve 1 Wiring, IAC valve4433 I Fuel pump relay / Wiring, fuse, fuel pump relay4444 No fault found- - --- ---Wiring, injectorWiring, injector-Trouble code may be displayed if engine is not idling during self-diagnosis due to missing CKP sensor signal. Ignore trouble code ifengine starts.'IG type5-digit-0000000263EOBD typePO--00268 1 - I Idle speed control (ISC) actuator I Wiring, ISC actuator002810028200305005130051 50051 60051 80051900520---------Fault locationRefer to EOBD trouble code tableNo fault foundTransmission control module (TCM) -incorrect signalVehicle speedsensor ( VSS)~Idle speed control (ISC) actuatorlthrottlemotorInstrument panel, fuel consumption signalCrankshaft position (CKP) sensorI Crankshaft position (CKP) sensorCamshaft position (CMP) sensorClosed throttle position (CTP) switchThrottle position (TP) sensorManifold absolute pressure (MAP) sensorMass air flow (MAF) sensorProbable cause--Wiring short to earth, TCM trouble code(s) stored,ECMwiring, speedometer, VSSThrottle valve tighffsticking, wiring, multi-plugincorrectly wired, ISC actuatorlthrottle motorWiring, instrument panelAir gap, metal particles, insecure sensorlrotor,wiring, CKP sensorAir gap, insecure sensorlrotor, wiring, poorconnection, CKP sensorAir gap, insecure sensorlrotor, wiring, poorconnection, fuse, distributorlcamshaft alignment,CMP sensorAccelerator cable adjustment, CTP switchadjustment, throttle valve tightlsticking, wiring,CTP switchWiring, poor connection, TP sensorTC wastegate regulating valve, hoseconnection(s), oil contamination, valve timing,poor connection, wiring, MAP sensor, ECMWiring, MAF sensor

[ 98 I,,,,,,,,,,FEngine managementModel: A2 A3lS3 80 1,6/2,012,6/2,8 80 1,9 TDI (07193+) A4lS4100lA6 1,8/2,012,6/2,814,2 A6 2,s TDI A6lS61Allroad A8lS8CoupelCabriolet 1,812,012,6/2,8 Cabriolet 1,9 TDI TTvAG5-digit1 EOBD type I F~UN locationProbable cause00521 I - I Mixture adjustment resistor I Wiring, mixture adjustment resistor00522 1 - I Engine coolant temperature (ECT) sensor I Wiring, poor connection, ECT sensor0052300524--00525I -Heated oxygen sensor (H02S) 1 -implausible signal- --Wiring, poor connection, IAT sensorWiring, KS, ECMI Wiring. H025, heating inoperative, fuel level low00526 1 - I Stop lamp switch I Wiring, stop lamp switch0052700528005290053000532005330053400535--------00536I -0053900540--Intake air temperature (IAT) sensorKnock sensor (KS) 1Intake air temperature (IAT) sensorBarometric pressure (BARO) sensorCrankshaft position (CKP) sensor- -Wiring, poor connection, IAT sensorWiring, BAR0 sensorWiring, CKP sensorIdle speed control (ISC) actuatorlposition Wiring, poor connection, multi-plug incorrectlysensorwired, ISC actuatorlposition sensorEngine control module (ECM) -Fuse, alternator, battery, current draw withsupply voltageignition OFF, engine control relay, wiringIdle speed control (ISC)Intake leaklblockage, throttle valve tightlsticking,-----IAC valve or ISC actuatorlposition sensorEngine oil temperature (EOT) sensor Wiring, EOT sensorEngine control module (ECM) -Wiring, KS, ECMknock control 1Engine control module (ECM) -I Wiring, KS, ECMknock control 2Heated oxygen sensor (H02S) -CO adjustment, heating inoperative,lambda controlintakelexhaust leak, misfire, fuel level low, fuelpressurelpump, injector(s), EVAP canister purgevalve, MAP sensor, MAF sensor filament burn-off,wiring, H02SFuel temperature sensorWiring, fuel temperature sensorKnock sensor (KS) 2Wiring, KS, ECMAir in fuel system, fuel level low, wiring, injectorneedle lift sensorMaximum engine RPM exceededIncorrect gear shift, CKPIRPM sensor, AT fault,I ECMMaximum boost pressure exceeded Hoses interchangedlnot connected, hosesblockedlleaking, TC wastegate actuator1regulating valve, MAP sensorECMrTCM electrical connectionTCM trouble code(s) stored, wiring, transmissionfaultData link connector (DLC) - defective WiringInstrument panel, fuel consumption signal Wiring short to positive, instrument panelStart of injection - controlWiring, fuel injection timing solenoid, injectorneedle lift sensor, air in fuel system, fuel levellow, pump timingVolume air flow (VAF) sensorIntake leak, wiring, VAF sensorMass air flow (MAF) sensorIntake leak, wiring, MAF sensor00542I -I Injector needle lift sensor005450054600549005500055200553------

Model: A2 A31S3 80 1,612,0/2,612,8 80 1,9 TDI (07193 -+) A41S41001A6 1,8/2,0/2,6/2,8/4,2 A6 2,s TDI A6/S6/Allroad A81S8CoupeICabriolet 1,8/2,0/2,612,8 Cabriolet 1,9 TDI lTAUDIEngine management 1--VAG type5-digitEOBD type-Fault locationHeated oxygen sensor (H02S) - lambdacontrolProbable cause- Heated oxygen sensor (H02S) 2 - Wiring, H02S, heating inoperative, fuel level lowimplausible signal---Power steering pressure (PSP)switch - short to earthExhaust gas recirculation (EGR) - controldifferenceMixture control (MC)- I Intake manifold pressure-------Knock control, cylinder 1 - control limitexceededKnock control, cylinder 2 - control limitexceededKnock control, cylinder 3 - control limitexceededKnock control, cylinder 4 - control limitexceededKnock control, cylinder 5 - control limitexceededKnock control, cylinder 6 - control limitexceededExhaust gas recirculation temperature(EGRT) sensor- I Exhaust gas recirculation (EGR) system - EGR solenoidcontrol- I Ignition amplifier,primary%cuit 1- W~ring,CO adjustment, heating inoperative,intakelexhaust leak, misfire, fuel level low, fuelpressurelpump, injector(s), EVAP canister purgevalve, MAP sensor, MAF sensor filament burn-off,wiring, H02SWiring short to earth, PSP switchIntake leak, EGR valveisolenoidI-- -Trouble codes 00525100533 stored, fuel level low,fuel pressurelpump, intakelexhaust leak, misfire,MAP sensor, MAF sensor filament burn-off,H02S, EVAP canister purge valve, injector(s),excessive fuel in engine oillntake leaklblockage, MAF sensor, MAP sensor,TC wastegate actuatorlregulating valve, hosesinterchangedlnot connected, wiringFuel pressure, misfire, intake leak, injector(s)Fuel pressure, misfire, intake leak, injector(s)Fuel pressure, misfire, intake leak, injector(s)Fuel pressure, misfire, intake leak, injector(s)Fuel pressure, misfire, intake leak, injector(s)Fuel pressure, misfire, intake leak, injector(s)1 ;ignition amplifier- I Ignition amplifier, primary circuit 2 I Wiring, ignition amplifier----Ignition amplifier, primary circuit 3AC signal - compressor cut-inVehicle speed signalGlow plug warning lamp-Fuel filter water level sensor- Fuel injection pump control module -engine stop malfunctionIIWiring, EGRT sensorWiring, ignition amplifierWiring, AC systemWiring, speedometer, VSSWiring, glow plug warning lampWater in filter, wiring, fuel filter water level sensorWiring, fuel injection pump-Heated oxygen sensor (H02S) 1,Wiring, H02Sbank 1 - heater circuit malfunction- ECMITCM electrical connection Wiring, transmission fault- I Oxygen sensor heater relay I Wiring, oxygen sensor heater relay

IEngine managementModel: A2 A363 80 1,612,012,612,8 80 1,9 TDI (07193 +) A4lS41001A6 1,8/2,012,6/2,814,2 A6 2,s TDI A6lS61Allroad A8lS8CoupelCabriolet 1,812,012,612,8 Cabriolet 1,9 TDI lTtype5-digit0065000653006670066800670006710074000741007500075800765EOBD type-----------Fault locationClutch pedal position (CPP) switch - shortto positiveTransmission control module (TCM)ITRsensor - implausible TR signalOutside air temperature signalEngine control module (ECM) -supply voltage lowIdle speed control (1%) actuator positionsensorCruise control master switchCamshaft position (CMP) sensorProbable causeWiring short to positive, CPP switchWiring, transmission fault, poor connectionWiring, instrument panel, AC system, outside airtemperature sensorBattery, wiring, engine control relayWiring, throttle valve, ISC actuator positionsensor00777 1 - I Accelerator pedal position (APP) sensor I Incorrectly adjusted, wiring, APP sensor00792010130102501 02801 044010500105201087010880111701119011200112101126011630116501 167-----------------Stop lamp switchlbrake pedal position (BPP)switch - implausible ratioMalfunction indicator lamp (MIL) - circuitmalfunctionSecondary air injection (AIR) systemFuel quantity adjuster position sensorAC pressure switchAC compressor clutch, load signalMalfunction indicator lamp (MIL)Engine coolant blower motor relayEngine control module (ECM) - codingGlow plug monitoringFuel lever position sensorEngine control module (ECM) - basicsettingMixture control (MC)Alternator load signalGear recognition signal - ATCamshaft position (CMP) control,bank 1 - mechanical faultCamshaft position (CMP) control,bank 2 - mechanical faultEngine RPM signalBackfireIdle speed control (1%) actuatorlthrottlemotorFull throttle stop solenoid01 168I -I ldle speed boost solenoidWiring, cruise control master switchWiring, CMP sensorWiring, both switch positions not synchronised,stop lamp switch, BPP switchECM incorrectly coded, wiring, MILAIR solenoidlrelay, wiringWiring, fuel injection pumpWiring, AC pressure switchWiring, AC systemWiring, MILWiring, engine coolant blower motor relayIncorrectly codedFuse, wiring, glow plug relay, glow plugsWiring, fuel lever position sensorBasic setting not completed, throttle valvetightlstickingFuel level low, fuel pressurelpump, MAP sensor,MAF sensor, intakelexhaust leak, EVAP canisterpurge valve, excessive fuel in engine oil, injector(s)Wiring, alternatorWiringWiring, fuse, CMP actuatorWiring, fuse, CMP actuatorWiring, CKPIRPM sensor, instrument panelIntake leak, wiring, ignition amplifier, injector(s)Accelerator cable adjustment, throttle valve,wiring, ISC actuatorlthrottle motor, basic settingnot carried outWiring, full throttle stop valveWiring, full throttle stop valve, idle speed boostsolenoid1 loo 1 Engine management/mutodata

Model: A2 A31S3 80 1,612,012,6/2,8 80 1,9 TDI (07193 -+) A41S41001A6 1,812,012,612,8/4,2 A6 2,5 TDI A6IS6IAllroad A8lS8CoupelCabriolet 1,8/2,012,6/2,8 Cabriolet 1,9 TDI lT1Engine managementtype5-digit011690117001177011800118201183EOBD type------Fault locationDoor contact switch, driver'sFuel injection timing sensorEngine control module (ECM) - defectiveEnginelAC electrical connectionMass air flow (MAF) sensor/throttle position(TP) sensor - signal incompatibilityMalfunction indicator lamp (MIL) - circuitmalfunctionIProbable causeWiring, door contact switchWiring, fuel injection timing sensorECMWiringThrottle valve sticking, ISC actuatorlthrottlemotor sticking/mechanically damaged, incorrectthrottle control unit, intake leak between MAFsensor and throttle valve, air filter blockedECM incorrectly coded, wiring, MIL01193 I - ( Engine coolant heater relay 1, low output I Wiring, engine coolant heater relay01194011960120401208----01209 1 - 1 Alternator speed signal I Wiring, alternator0123501237012420124301247------ - -Engine coolant heater relay 2, high outputCAN data bus, TCM - incorrect signalEngine coolant temperature (ECT) sensorEngine control module (ECM) - datachanged- - - --Wiring, engine coolant heater relayWiringWiring, ECT sensorECM01249 I - I lniector 1 I Wiring, fuse, injector01250 1 - I01251-Secondary air injection (AIR) solenoidFuel shut-off solenoidEngine control module (ECM) - outputstagesIntake manifold air control solenoidEvaporative emission (EVAP) canister purgevalveInjector 2Injector 3-- -Wiring, AIR solenoidWiring, fuel shut-off solenoidWiring, ECM controlled componentsI Wiring, fuse, injectorWiring, fuse, injector01252 1 - I lniector 4 I Wiring, fuse, injector01253 1 - I Injector 5 I Wiring, injector01254012570125901262----01265 1 - I Exhaust gas recirculation (EGR) solenoid I Wiring, EGR solenoid0126601268--Injector 6Idle air control (IAC) valveFuel pump relayTurbocharger (TC) wastegate regulatingvalveWiring, intake manifold air control solenoidWiring, fuse, EVAP canister purge valveWiring, injectorWiring, IAC valveWiring, fuse, fuel pump relayWiring, fuse, TC wastegate regulating valve01269 1 - I Fuel injection timing solenoid I Wiring, fuel injection timing solenoid0128201283---Glow plug relayFuel quantity adjusterIntake manifold air control solenoidIntake manifold air control actuatorWiring, glow plug relayIncorrectly set, wiring, fuel injection pump01312 1 - I CAN data bus - defective I Trouble code(s) stored in other system(s), wiring-Wiring, intake manifold air control solenoidWiring, intake manifold flap, intake manifold aircontrol actuator

AUDIModel: A2 A31S3 80 1,6/2,0/2,612,8 80 1,9 TDI (07193+) A41S41001A6 1,8/2,0/2,6/2,8/4,2 A6 2,s TDI A6IS6IAllroad A81S8CoupelCabriolet 1,8/2,0/2,6/2,8 Cabriolet 1,9 TDI TTEngine managementtype5-digit0131401315013160131701318013210137501376014370144001441EOBD type-----------Fault locationEngine control module (ECM), cruise controlsystem - defectiveCAN data bus, TCM - no signalCAN data bus, ABS - defectiveCAN data bus, instrumentationFuel injection pump control moduleCAN data bus, SRSEngine mounting control solenoid,bank 1 & 2Probable cause01442 1 - I Engine misfire - fuel pump housing empty I Fuel level low, fuel transfer pump01 57501 61 301 656---Fuel injection pump position sensorThrottle control unit - basic settingECMTCM trouble code(s) stored, wiring, matchingresistor in ECMABS control module incorrectly coded, wiringTrouble code(s) stored in other system(s), wiring,instrumentation control moduleData bus wiring, fuel injection pumpSRS control module trouble code@) stored,wiringWiring, engine mounting control solenoid01686 1 - I Engine coolant blower motor run-on relay I Wiring, engine coolant blower motor run-on relay01 6951639416395---16396I -163991641 4164151 641 616474I - ICamshaft-----Fuel level signalFuel low level sensorAuxiliary drive - switched OFFFuel cooling pump relay - circuitmalfunctionSRS control module - crash signalFuel temperature sensor - circuitmalfunctionCamshaft position (CMP) actuator, intake1leftlfront, bank 1 - circuit malfunctionCamshaft position (CMP), intakelleftlfront,bank 1 - timing over advancedlsystemperformanceCamshaft position (CMP), intakelleftlfront,bank 1 - timing over retardedposition (CMP) actuator, exhaustlrightlrear, bank 1 - timing over advanced1system performanceCamshaft position (CMP) actuator, exhaustlrightlrear, bank 1 - timing over retardedHeated oxygen sensor (H02S) 1, bank 1,heater control - circuit malfunctionHeated oxygen sensor (H02S) 1, bank 1,heater control - circuit lowHeated oxygen sensor (H02S) 1, bank 1,heater control - circuit highFuel metering solenoid - open circuitWiring, fuel injection pump position sensorBasic setting not carried out, CTP switch, ISCactuatorlposition sensor, TP sensorWiring, instrument panel, fuel gauge tank sensorWiring, fuel transfer pump, fuel level sensorAuxiliary drive overloadedWiring, fuel cooling pump relayWiringWiring, fuel temperature sensorWiring, CMP actuator-- - - -Valve timing, camshaft position (CMP) actuatorValve timing, camshaft position (CMP) actuatorValve timing, camshaft position (CMP) actuator16475 1 - I Fuel metering solenoid - short to earth I Wiring short to earth, fuel metering solenoid16476-Fuel metering solenoid - short to positiveValve timing, camshaft position (CMP) actuatorWiring open circuit, H02SWiring short to earth, H02SWiring short to positive, H02SWiring open circuit, fuel metering solenoidWiring short to positive, fuel metering solenoid

Model: A2 A363 80 1,612,012,612,8 80 1,9 TDI (07193+) A41S41001A6 1,812,012,612,814,2 A6 2,s TDI A6IS6IAllroad A81S8CoupelCabriolet 1,8/2,012,612,8 Cabriolet 1,9 TDI lTAUDIEngine management IVAG type5-digitaEOBD type------Fault locationMass air flow (MAF) sensor,bank 1 - rangelperformance problemMass air flow (MAF) sensor, bank 1 - lowinputMass air flow (MAF) sensor, bank 1 - highinputManifold absolute pressure (MAP) sensor1barometric pressure (BARO)sensor - rangelperformance problemManifold absolute pressure (MAP) sensor1barometric pressure (BARO) sensor - lowinputManifold absolute pressure (MAP) sensor1barometric pressure (BARO) sensor - highinputProbable causeIntake leak, wiring, MAF sensorIntake leak, air filter blocked, wiring short toearth, fuse, MAF sensorWiring short to positive, earth wire defective, MAFsensor- Intake air temperature (IAT) sensor - low Wiring short to earth, IAT sensorinput---Intake air temperature (IAT) sensor - highinputEngine coolant temperature (ECT)sensor - rangelperformance problemEngine coolant temperature (ECT)sensor - low inputlntakelexhaust leak, wiring, MAP sensor,BAR0 sensorWiring short to earth, MAP sensor,BARO sensorWiring short to positive, MAP sensor,BARO sensorWiring open circuitlshort to positive, earth wiredefective, IAT sensorCoolant thermostat, poor connection, wiring,ECT sensor-Engine coolant temperature (ECT) Coolant thermostat, wiring open circuitlshort tosensor - high inputpositive, earth wire defective, ECT sensor- Throttle position (TP) sensor - circuit Poor connection, wiring, TP sensormalfunction----Throttle position (TP) sensor - range1performance problemThrottle position (TP) sensor - low inputThrottle position (TP) sensor - high inputHeated oxygen sensor (H02S) 1,bank 1 - circuit malfunctionCoolant thermostat, wiring short to earth,ECT sensorPoor connection, TP sensorSignal wire short to earth, supply wire defective,TP sensor- Heated oxygen sensor (H02S) 1, I Wiring short to earth, HO2Sbank 1 - voltage low------Heated oxygen sensor (H02S) 1,bank 1 - voltage highHeated oxygen sensor (H02S) 1,bank 1 - slow responseHeated oxygen sensor (H02S) 1,bank 1 - no activity detectedHeated oxygen sensor (H02S) 1,bank 1 - heater circuit malfunctionHeated oxygen sensor (H02S) 2,bank 1 - circuit malfunctionHeated oxygen sensor (H02S) 2,bank 1 - low voltageSignal wire open circuitlshort to positive, earthwire defective, TP sensorHeating inoperative, poor connection, wiring,H02SWiring short to positive, H02SHeating inoperative, wiring, H02SWiring open circuit, heating inoperative, H02SFuse, wiring, H02SHeating inoperative, wiring, H02SWiring short to earth, exhaust leak, H02S4Eng~ne management a 103

IEngine managementModel: A2 A363 80 1,612,012,6/2,8 80 1,9 TDI (07193 -+) A4lS4100lA6 1,8/2,012,612,8/4,2 A6 2,5 TDI A6lS61Allroad A8lS8CoupelCabriolet 1,8/2,0/2,6/2,8 Cabriolet 1,9 TDI TTvAG type I EOBD type 1 Fault location5-digit16522165231652516534----16535I -1653616537I6538I -165401 6542165431654516554165561655716559165751657616577--I ---I ---------Heated oxygen sensor (H02S) 2,bank 1 - high voltageHeated oxygen sensor (H02S) 2,bank 1 - slow responseHeated oxygen sensor (H02S) 2,bank 1 - no activity detectedHeated oxygen sensor (H02S) 2,bank 1 - heater circuit malfunctionHeated oxygen sensor (H02S) 1,bank 2 - circuit malfunctionHeated oxygen sensor (H02S) 1,bank 2 - low voltageHeated oxygen sensor (H02S) 1,bank 2 - high voltageHeated oxygen sensor (H02S) 1,bank 2 - slow responseHeated oxygen sensor (H02S) 1,bank 2 - no activity detectedHeated oxygen sensor (H02S) 2,bank 2 - circuit malfunctionHeated oxygen sensor (H02S) 2,bank 2 - low voltageHeated oxygen sensor (H02S) 2,bank 2 - high voltageHeated oxygen sensor (H02S) 2,bank 2 - slow responseHeated oxygen sensor (H02S) 2,bank 2 - no activity detectedHeated oxygen sensor (H02S) 2,bank 2 - heater circuit malfunctionFuel trim (FT), bank 1 - malfunctionSystem too lean, bank 1System too rich, bank 1Fuel trim (FT), bank 2 - malfunction/ System too lean. bank 2System too rich, bank 2Fuel rail pressure (FRP) sensor - range1performance problemFuel rail pressure (FRP) sensor - low inputFuel rail pressure (FRP) sensor - highinputProbable causeWiring short to positive, H02SHeating inoperative, wiring, H02SI Wiring, H02SWiring, H02SWiring, H02SI Wiring short to earth, HO2SWiring short to positive, H02SHeating inoperative, wiring, H02SI Wiring, H02SHeating inoperative, wiring, H02SWiring short to earth, exhaust leak, H02SWiring short to positive, H02SHeating inoperative, wiring, H02SI Wiring, HO2SWiring, H02SIntake leak, AIR system, fuel pressurelpump,injector(s), EVAP canister purge valve, H02Slntakelexhaust leak, AIR system, MAP sensor,MAF sensor, fuel pressurelpump, injector(s),EVAP canister purge valve, H02SEVAP canister purge valve, fuel pressure,injector(s), H02SFuel pressurelpump, injector(s), AIR system,hose connection(s), intake leakFuel pressurelpump, injector(s), intakelexhaustleak, AIR system, hose connection(s)Fuel pressure, injector(s), EVAP canister purgevalveWiring, FRP sensorWiring short to earth, FRP sensorWiring short to positive, FRP sensor1 '04 1 Eng~nemanagement/Autodata

Model: A2 A363 80 1,6/2,012,6/2,8 80 1,9 TDI (07193 +) A464100lA6 1,8/2,0/2,6/2,8/4,2 A6 2,s TDI A6lS61Allroad A8lS8CoupelCabriolet 1,8/2,012,6/2,8 Cabriolet 1,9 TDI TT7Engine managementtype5-digit1657816581I --1658216585EOBD type--Fault locationFuel rail pressure (FRP) sensor - circuit Wiring open circuit, FRP sensorintermittent/ Engine oil temperature (EOT) sensor - low Wiring short to earth, EOT sensorinput16586 1 - I Injector 2 - circuit malfunction I Wiring, injector1658716588--Engine oil temperature (EOT)sensor - high inputInjector 1 - circuit malfunctionProbable cause16589 1 - I Injector 5 - circuit malfunction I Wiring, injector16590166031660516606----Injector 3 - circuit malfunctionInjector 4 - circuit malfunctionInjector 6 - circuit malfunctionEngine over speed conditionThrottle position (TP) sensor B - range1performance problemThrottle position (TP) sensor B - low inputWiring short to positive, EOT sensorWiring, injector16607 1 - I Throttle position (TP) sensor B - high input I Wiring short to positive, TP sensor1661 11661 2166141661816619166201662216627------I ---16629I -166301664516646166481664916651------Accelerator pedal position (APP)sensor A/B - rangelperformance problemAccelerator pedal position (APP)sensor A - low inputAccelerator pedal position (APP)sensor A - high inputFuel pump relay - circuit malfunctionEngine boost condition - limit exceededEngine boost condition - limit not reachedManifold absolute pressure (MAP) sensor A,TC system - rangelperformance problemManifold absolute pressure (MAP) sensor A,TC system - low inputManifold absolute pressure (MAP) sensor A,TC system - high inputTurbocharger (TC) wastegate regulatingvalve A - circuit malfunctionTurbocharger (TC) wastegate regulatingvalve A - circuit lowTurbocharger (TC) wastegate regulatingvalve A - circuit highInjector 1 - circuit lowInjector 1 - circuit highInjector 2 - circuit lowInjector 2 - circuit highInjector 3 - circuit lowWiring, injectorWiring, injectorWiring, injectorIncorrect gear changeWiring, TP sensorWiring short to earth, TP sensorWiring, APP sensorWiring short to earth, APP sensorWiring short to positive, APP sensorWiring, fuel pump relayHose connection(s), wiring, TC wastegateregulating valve, TC wastegateHose connection(s), wiring, TC wastegateregulating valve, TC wastegatelntakelexhaust leak, hose connection(s),MAP sensorWiring short to earth, MAP sensorWiring short to positive, MAP sensorWiring, TC wastegate regulating valveWiring short to earth, TC wastegate regulatingvalveWiring short to positive, TC wastegate regulatingvalveWiring short to earth, injectorWiring short to positive, injectorWiring short to earth, injectorWiring short to positive, injectorWiring short to earth, injector-a- Eng~ne management 105110

AUDIModel: A2 A3lS3 80 1,6/2,012,6/2,8 80 1,9 TDI (07193 -) A41S4100lA6 1,8/2,012,6/2,8/4,2 A6 2,s TDI A6lS61Allroad A81S8CoupelCabriolet 1,8/2,012,6/2,8 Cabriolet 1,9 TDI TTEngine managementVAG type 1 EOBD type I Fault location5-digitProbable cause16652 1 - I Injector 3 - circuit high I Wiring short to positive, injector1665416655166571665816660-----16661 I - I Injector 6 - circuit high I Wiring short to positive, injector166841668516686---Injector 4 - circuit lowInjector 4 - circuit highInjector 5 - circuit lowInjector 5 - circuit highInjector 6 - circuit low-Wiring short to earth, injectorWiring short to positive, injectorWiring short to earth, injectorWiring short to positive, injectorWiring short to earth, injector16687I -I Cylinder 3 - misfire detected Spark plug, HT lead(s), injector, ignition coil, lowcompression, wiring1668816689--Randomlmultiple cylinder(s) - misfiredetectedCylinder 1 - misfire detectedCylinder 2 - misfire detectedSpark plug(s), HT lead(s), injector(s), ignitioncoil(s), low compression, wiringSpark plug, HT lead(s), injector, ignition coil, lowcompression, wiringSpark plug, HT lead(s), injector, ignition coil, lowcompression, wiring16690I -I Cylinder 6 - misfire detected Spark plug, HT lead(s), injector, ignition coil, lowcompression, wiring16691166921670616709--1671 01 -1671 1--I -Cylinder 4 - misfire detectedCylinder 5 - misfire detectedCylinder 7 - misfire detectedCylinder 8 - misfire detectedCrankshaft position (CKP) sensorlenginespeed (RPM) sensor - rangelperformanceproblemCrankshaft position (CKP) sensorlenginespeed (RPM) sensor - no signalKnock sensor (KS) 1, bank I - circuitmalfunctionKnock sensor (KS) 1, bank I - range/performance problemKnock sensor (KS) 1, bank 1 - low inputSpark plug, HT lead(s), injector, ignition coil, lowcompression, wiringSpark plug, HT lead(s), injector, ignition coil, lowcompression, wiringSpark plug, HT lead(s), injector, ignition coil, lowcompression, wiringSpark plug, HT lead(s), injector, ignition coil, lowcompression, wiringAir gap, metal particles, insecure sensorlrotor,wiring, CKPIRPM sensorWiring, poor connection, KSI Wiring, KS incorrectly tightened, KS1671 2I -/ Knock sensor (KS) 1, bank 1 - high input Wiring short to positive, KS incorrectly tightened,16716167171671916721----Knock sensor (KS) 2, bank 2 - low inputKnock sensor (KS) 2, bank 2 - high inputCrankshaft position (CKP) sensor - circuitmalfunctionCrankshaft position (CKP) sensor - lowinputWiring, CKPIRPM sensorlnsecure KS, poor connection, wiring short toearth, incorrectly tightened, KS/ KSInsecure KS, poor connection, wiring short toearth, KS incorrectly tightened, KSWiring short to positive, KS incorrectly tightened,KSWiring, CKPIRPM sensorInsecure sensor, air gap, wiring short to earth,CKP/RPM sensor

Model: A2 A3lS3 80 1,6/2,012,6/2,8 80 1,9 TDI (07193 -+) A4lS41001A6 1,8/2,012,6/2,8/4,2 A6 2,5 TDI A6lS61Allroad A8lS8CoupelCabriolet 1,8/2,012,6/2,8 Cabriolet 1,9 TDI TTEngine management IVAG type5-digit16724167251672616727167301673116732167351673616737167381676416784I EOBD type I Fault location-------------16785I -1678616787167881679116792--16795I -16796I --168021680416806----I -Camshaft position (CMP) sensor A,bank 1 - circuit malfunctionCamshaft position (CMP) sensor A,bank 1 - rangelperformance problemCamshaft position (CMP) sensor A,bank 1 - low inputCamshaft position (CMP) sensor A,bank 1 - high inputCamshaft position (CMP) sensor A,bank 2 - rangelperformance problemCamshaft position (CMP) sensor A,bank 2 - low inputCamshaft position (CMP) sensor A,bank 2 - high inputIgnition coil, cylinder 1, primary1secondary - circuit malfunctionIgnition coil, cylinder 2, primary1secondary - circuit malfunctionIgnition coil, cylinder 3, primary1secondary - circuit malfunctionIgnition coil, cylinder 4, primary1secondary - circuit malfunctionProbable causeWiring, CMP sensorInsecure sensorlrotor, air gap, wiring, CMPsensorWiring short to earth, CMP sensorWiring short to positive, CMP sensorInsecure sensorlrotor, air gap, wiring,CMP sensorWiring short to earth, CMP sensorWiring short to positive, CMP sensorWiring, ignition amplifier, ignition coilWiring, ignition amplifier, ignition coilWiring, ignition amplifier, ignition coilWiring, ignition amplifier, ignition coilGlow plugs - clrcuit A malfunction Wiring, glow plug relay, fuse, glow plugsExhaust gas recirculation (EGR) system - Basic setting not carried out, EGR valvelsolenoidflow malfunctionExhaust gas recirculation (EGR) system - Hose leaklblockage, basic setting not carried out,insufficient flow detectedI EGR valvelsolenoidExhaust gas recirculation (EGR) system - EGR valvelsolenoid, basic setting not carried outexcessive flow detectedExhaust gas recirculation (EGR) system -circuit malfunctionExhaust gas recirculation (EGR) system -rangelperformance problemExhaust gas recirculation (EGR) valveposition sensor - low inputExhaust gas recirculation (EGR) valve Wiring short to positive, EGR valve positionposition sensor - high inputsensorSecondary air injection (AIR) system - I AIR pump, AIR valve, AIR hose@)incorrect flow detectedair injection (AIR) 1 Gring, AIR solenoidsolenoid A - circuit malfunctionSecondary air injection (AIR) pumprelay A - circuit malfunctionCatalytic converter system, bank 1 -efficiency below thresholdMain catalytic converter, bank 1 -efficiency below thresholdWiring, EGR valvelsolenoidHose connection(s), wiring, EGR valvelsolenoidWiring short to earth, EGR valve position sensorWiring, AIR pump relayCatalytic converterCatalytic converter/Autodata I Eng~ne+Imanagement 107

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Model: A2 A3lS3 80 1,612,012,612,8 80 1,9 TDI (07/93+) A4lS41001A6 1,8/2,012,6/2,814,2 A6 2,5 TDI A6IS6IAllroad A81S8CoupelCabriolet 1,812,012,6/2,8 Cabriolet 1,9 TDI lTEngine management Itype EOBD type Fauk bocation5-digit1694716952--16955I -Stop lamp switchlbrake pedal position (BPP)switch - circuit malfunctionProbable causeWiring, stop lamp switch, BPP switch16983 1 - I CAN data bus - malfunction ( Trouble code(s) stored in other system, wiring16984169851698716988----System voltage - highCruise control masterlselector switch, SETsignal - malfunction16989 1 - I Engine control module (ECM) - ROM error I ECM169901702217026---17029 1 - I Air conditioning I Wiring, AC system17034I -17040 -17071-CAN data bus - malfunctionEngine control module (ECM) - memorycheck sum errorEngine control module (ECM) - KAM errorEngine control module (ECM) - RAM errorEngine control module (ECM) - PCMprocessor faultThrottle actuator control, bank 1 - range1performance problemEngine control module (ECM), knockcontrol - defectiveMalfunction indicator tamp (MIL) - circuitmalfunctionInstrument panel, fuel consumption signal -circuit malfunctionEngine control relay - short to earthAlternator, wiringWiring, cruise control masterlselector switchTrouble code(s) stored in other system, wiringECMWiring, MIL17072 1 - 1 Engine control relay - short to positive I Wiring short to positive, engine control relay170751707617077170781709117092-17428/Autodata------POPI020Engine coolant blower motor 1 - short toearthEngine coolant blower motor 1 - short topositiveEngine coolant blower motor 2 - short toearthEngine coolant blower motor 2 - short topositiveTransmission range (TR) sensor - lowinputTransmission range (TR) sensor - highinputRefer to EOBD trouble code tableFuel pressure - control limit exceededECMECMECMBasic setting not carried out, throttle control unit,APP sensorECMWiringWiring short to earth, engine control relayWiring short to earth, engine coolant blowermotorWiring short to positive, engine coolant blowermotorWiring short to earth, engine coolant blowermotorWiring short to positive, engine coolant blowermotorWiring short to earth, TR sensorWiring short to positive, TR sensor-Wiring, fuel pressure sensor, fuel pressurecontrol valve, high pressure fuel pump17431 Pl 023 Fuel pressure control valve - short to earth Wiring short to earth, fuel pressure control valve17432 1 Pi024 I Fuel pressure control valve - open circuit I Wiring open circuit, fuel pressure control valve17433 Fuel pressure control valve - mechanical Fuel pressure control valveI / fault17434 PI 026 Intake manifold air control solenoid - short Wiring short to positive, intake manifold airto positivecontrol solenoid4Eng~ne management109

t.'AUDlModel: A2 A3lS3 80 1,612,012,6/2,8 80 1,9 TDI (07193 -.) A4lS41001A6 1,812,012,6/2,814,2 A6 2,s TDI A6lS61Allroad A8IS8CoupelCabriolet 1,8/2,012,612,8 Cabriolet 1,9 TDI TTEngine management-type EOBD type Fault location5-digitProbable cause174351743617438i 1743917440IIPI 027PI028IlntakePI032Intake manifold air control solenoid - shortto earthIntake manifold air control solenoid - opencircuitlntake manifold air control valve positionsensor - upper limit not reachedlntake manifold air control valve positionsensor - lower limit not reachedmanifold air control valve positionsensor - specification not attainedNitrogen oxides (NOx) sensor - signal toohighWiring short to earth, intake manifold air controlsolenoidWiring open circuit, intake manifold air controlsolenoidAir control flap tightlsticking, hose connection(s),intake manifold air control actuatorAir control flap tightlsticking, hose connection(s),intake manifold air control actuatorAir control flap tightlsticking, hose connection(s),intake manifold air control actuator, intakemanifold air control solenoidCatalytic converter, wiring short to positive,NOx sensorExhaust leak, wiring short to earth, NOx sensor17441 PI033 Nitrogen oxides (NOx) sensor - signal toolow17442 PI034 Nitrogen oxides (NOx) sensor - signal Catalytic converter, exhaust leak, wiring,outside toleranceNOx sensor17443 PI035 Nitrogen oxides (NOx) sensor - range1 Wiring, heating inoperative, NOx sensorperformance problem17444 PI036 Nitrogen oxides (NOx) heater sensor - Wiring short to positive, NOx sensorshort to positiveNitrogen oxides (NOx) heater sensor -7445 Ia I short to earthWiring short to earth, NOx sensor17446 PI038 Nitrogen oxides (NOx) heater sensor - Wiring open circuit, NOx sensoropen circuit17447 PI039 lniector 1, supply voltage - short circuit Wiring, injector17448 PI040 Injector 1, supply voltage - circuitWiring, injectormalfunction17449 PI041 Injector 2, supply voltage - short circuit Wiring, injector17450 PI 042 Injector 2, supply voltage - circuitWiring, injectormalfunction17451 PI 043 Injector 3, supply voltage - short circuit Wiring, injector17452 PI 044 Injector 3, supply voltage - circuitWiring, injectormalfunction17453 PI045 Injector 4, supply voltage - short circuit Wiring, injector17454 PI 046 Injector 4, supply voltage - circuitWiring, injectormalfunction17455 PI 047 Camshaft position (CMP) actuator, exhaust/ Wiring, camshaft position (CMP) actuatorrighthear, bank 1 - circuit malfunction17456Camshaft position (CMP) actuator, exhaust/ Wiring short to positive, camshaft position (CMP)righthear, bank 1 - short to positive actuator17457IPI049Camshaft position (CMP) actuator, exhaust/righthear, bank 1 - short to earthWiring short to earth, camshaft position (CMP)actuator17458 PI050 Camshaft position (CMP) actuator, exhaust/righthear, bank 1 - open circuitWiring open circuit, camshaft position (CMP)actuatorFuel pressure - control limit not reached Air in fuel system, fuel leak, fuel lift pump,fuel bypass valve, fuel pressure control valve,high pressure fuel pump

Model: A2 A363 80 1,612,0/2,6/2,8 80 1,9 TDI (07193 -) A41S41001A6 1,812,012,612,814,2 A6 2,s TDI A6IS6IAllroad A8lS8CoupelCabriolet 1,8/2,012,6/2,8 Cabriolet 1,9 TDI TTVAG type5-digitI EOBD typeFault locationProbable causeFuel pressure - mechanical faultAir in fuel system, fuel leak, fuel lift pump, fuelbypass valve, fuel pressure control valve, highpressure fuel pumpFuel pressure - system deviationAir in fuel system, fuel leak, fuel lift pump, fuelbypass valve, fuel pressure control valve, highpressure fuel pumplntake manifold air control solenoid - shortto positiveWiring short to positive, intake manifold aircontrol solenoidIntake manifold air control solenoid - shortto earthWiring short to earth, intake manifold air controlsolenoidlntake manifold air control solenoid - opencircuitWiring open circuit, intake manifold air controlsolenoidNitrogen oxides (NOx) sensor - heatercontrol - short to earthWiring short to earth, NOx sensorNitrogen oxides (NOx) sensor - heatercontrol - short to positiveWiring short to positive, NOx sensorNitrogen oxides (NOx) sensor - heatercontrol - incorrect signalWiring, NOx sensorNitrogen oxides (NOx) sensor - heatercontrol - circuit malfunctionWiring, NOx sensorMixture control (MC), bank 1 - malfunctionFuel pressurelpump, injector(s) intake leakHeated oxygen sensor (H02S) I,bank 1 - low voltagelair leaklntakelexhaust leak, fuel pressurelpump, wiringshort to earth, H02SHeated oxygen sensor (H02S) 1,bank 1 - heater short to positiveWiring short to positive, H02SHeated oxygen sensor (H02S) I,bank 1 - heater output too lowWiring, H02SHeated oxygen sensor (H02S) 2,bank I - heater short to positiveWiring short to positive, H02SHeated oxygen sensor (H02S) 1,bank 2 - low voltagelair leaklntakelexhaust leak, fuel pressurelpump, wiringshort to earth, H02SHeated oxygen sensor (H02S) 1,bank 2 - heater short to positiveHeated oxygen sensor (H02S) 2,bank 2 - heater short to positiveWiring short to positive, H02SHeated oxygen sensor (H02S) control,bank 1 - system too leanlntakelexhaust leak, injector blocked, MAP sensor,MAF sensor, fuel pressurelpump, H02SHeated oxygen sensor (H02S) control,bank 1 - system too richExcessive fuel in engine oil, injector leaking, fuelpressure, EVAP canister purge valve,MAP sensor, MAF sensor, H02SHeated oxygen sensor (H02S) 1,bank 1 - heater resistance too highWiring, H02SHeated oxygen sensor (H02S) 2,bank 1 - heater resistance too highWiring, H02SHeated oxygen sensor (H02S) 1,bank 1 - heater short to earthWiring short to earth, H02SHeated oxygen sensor (H02S) 1,bank 1 - heater open circuitWiring open circuit, H02S/Autodata- Engine management 111 1

Model: A2 A3lS3 80 1,6/2,012,612,8 80 1,9 TDI (07193 +) A4641001A6 1,812,012,612,814,2 A6 2,5 TDI A6IS6lAllroad A8lS8CoupUCabriolet 1,8/2,012,6/2,8 Cabriolet 1,9 TDI TTVAG type5-digitI EOBD type I Fault location Probable cause17525 Pl1171752617527175281752917530I P1122175351753617537175381753917540175411754417545175461754717548IIPill9P1120Pi121P1127I P1128P1129Pi130PI131Pi132P1133Pi136Pi137P1138Pi139I P1140Heated oxygen sensor (H02S) 2,bank 1 - heater short to earthHeated oxygen sensor (H02S) 2, / Wiring open circuit, H02Sbank 1 - heater open circuitHeated oxygen sensor (H02S) 1,bank 2 - heater short to earthHeated oxygen sensor (H02S) 1,bank 2 - heater open circuitHeated oxygen sensor (H02S) 2,bank 2 - heater short to earthHeated oxygen sensor (H02S) 2,bank 2 - heater open circuitLong term fuel trim, entire speednoad range,bank 1 - system too richWiring short to earth, H02SWiring short to earth, H02SWiring open circuit, H02SWiring short to earth, H02SI Wiring open circuit, HO2SExcessive fuel in engine oil, fuel pressure, EVAPcanister purge valve, injector@)Long term fuel trim, entire speedlload range, Fuel pressurelpump, injector(s), intakelexhaustbank 1 - system too leanleak, AIR system, hose leakLong term fuel trim, entire speedlload range, Excessive fuel in engine oil, fuel pressure, EVAPbank 2 - system too richcanister purge valve, injector@)Long term fuel trim, entire speednoad range, Fuel pressurelpump, injector(s), intakelexhaustbank 2 - system too leanleak, AIR system, hose leakHeated oxygen sensor (H02S) 1,Wiring, H02Sbank 1 - heater resistance too highHeated oxygen sensor (H02S) 1,Wiring short to positive, H02Sbank 1 & 2 - heater control - circuit highHeated oxygen sensor (H02S) 1,Wiring open circuiffshort to earth, H02Sbank 1 & 2 - heater control - circuit lowLong term fuel trim, idling, bank 1 - system Fuel pressurelpump, injector@), intakelexhausttoo leanleak, AIR system, hose leakLong term fuel trim, idling, bank 1 - system Fuel pressure, injector(s), EVAP canister purgetoo richvalveLong term fuel trim, idling, bank 2 - system Fuel pressurelpump, injector@), intakelexhausttoo leanleak, AIR system, hose leakLong term fuel trim, idling, bank 2 - system Fuel pressure, injector(s), EVAP canister purgetoo richvalveHeated oxygen sensor (H02S) 2,I Wiring, HO2Sbank 2 - heater resistance too high17549 1P1141 I Load calculation - implausible value I Wiring, MAP sensor, MAF sensor17551 El175521755317554Pi143P1144Pi145Pi146Load calculation - too lowLoad calculation - too highMass air flow (MAF) sensor, bank 1 - opencircuit/short to earthMass air flow (MAF) sensor, bank 1 - shortto positiveMass air flow (MAF) sensor,bank 1 - supply voltageThrottle control unit, MAP sensor, MAF sensor,APP sensorThrottle control unit, MAP sensor, MAF sensor,APP sensorWiring open circuiffshort to earth, MAF sensorWiring short to positive, MAF sensorOperating voltage too highllow, wiring

Model: A2 A363 80 1,6/2,012,6/2,8 80 1,9 TDI (07193 +) A41S41001A6 1,812,012,612,8/4,2 A6 2,s TDI A6lS61Allroad A81S8CoupelCabriolet 1,812,012,612,8 Cabriolet 1,9 TDI TTEngine managementVAG type5-digit175551755617557EOBD type Fault locationIPi147Pi148Pi149Probablecause17558 Heated oxygen sensor (H02S) 1, I Exhaust leak, wiring, H02Sbank 2 - implausible lambda control value17559175601756117563175641756517566Pl151Pll 52Pi153Pll 55Pi156Pi157Pi1581756717568I P1159I P116017569 Pi1611757017571175721757317574175751757617577Pi162Pi163Pi164Pi165P1166P1167Pi168Pi169Heated oxygen sensor (H02S) 1,bank 2 - lambda regulation, system tooleanHeated oxygen sensor (H02S) 1,bank 2 - lambda regulation, system toorichHeated oxygen sensor (H02S) 1,bank 1 - implausible lambda control valueLong term fuel trim 1, bank 1 - below leanlimitLong term fuel trim 2, bank 1 - below leanlimitHeated oxygen sensor (H02S) 2,H02S 2 on bank 1 8 2 incorrectly installedbank 1 & 2 - interchangedManifold absolute pressure (MAP)Wiring short to positive, MAP sensorsensor - short to positiveManifold absolute pressure (MAP)Wiring open circuiffshort to earth, MAP sensorsensor - open circuiffshort to earthManifold absolute pressure (MAP)Wiring, MAP sensorsensor - supply voltageManifold absolute pressure (MAP)Wiring, hose connection(s), MAP sensorsensor - rangelperformance problemMass air flow (MAF) sensor, bank 1 & 2 - EGR system, intake leak, wiring, MAF sensor 112implausible ratiolntake air temperature (IAT) sensor - shortto earthIntake air temperature (IAT) sensor - opencircuiffshort to positiveFuel temperature sensor - short to earthFuel temperature sensor - open circuiffshort to positiveFuel temperature sensor - range1performance problemLong term fuel trim 1, bank 1 - above richlimitLong term fuel trim 2, bank 1 - above richlimitMass air flow (MAF) sensor, bank 2 -rangelperformance problemMass air flow (MAF) sensor, bank 2 - lowinputMass air flow (MAF) sensor, bank 2 - highinputIntake leak, wiring, H02SExhaust leak, wiring, H02SExhaust leak, wiring, H02SFuel pressurelpump, injectors, intakelexhaustleak, H02SFuel pressurelpump, injectors, intakelexhaustleak, AIR system, H02SWiring short to earth, IAT sensorWiring open circuiffshort to positive, IAT sensorWiring short to earth, fuel temperature sensorWiring open circuitlshort to positive, fueltemperature sensorWiring, fuel temperature sensorFuel pressurelpump, injectors, EVAP canisterpurge valve, EGR system, H02S, intakelexhaustsystemFuel pressurelpump, injectors, EVAP canisterpurge valve, EGR system, H02S, intakelexhaustsystemIntake leak, wiring, MAF sensorIntake leak, air filter blocked, wiring short toearth, fuse, MAF sensorWiring short to positive, earth wire defective, MAFsensor17578IMass air flow (MAF) sensor, bank 2 - Wiring, fuse, engine control relay, injectorsupply voltage/Autodata- Engine management 113110

Model: A2 A3lS3 80 1,6/2,0/2,6/2,8 80 1,9 TDI (07193-) A4lS4100lA6 1,8/2,012,612,814,2 A6 2,5 TDI A6lS61Allroad A81S8CoupelCabriolet 1,812,012,6/2,8 Cabriolet 1,9 TDI lTtype5-digitEOBD type~ault laoationProbable cause175791758017581175821758417585175861758717588175891759017591175951759817599176031760417605176061760717609PI171PI172PI173PI 174PI176PI177PI178PI 179PI180PI 181PI182PI 183Throttle motor position sensor 2 - range1performance problemThrottte motor position sensor 2 - low inputThroffle motor position sensor 2 - highinputFuel measurement system, bank 1 -injection timing incorrectLambda correction after catalyst,bank 1 - control limit reachedLambda correction after catalyst,bank 2 - control limit reachedHeated oxygen sensor (H02S) 1, bank 1,pump current - open circuitHeated oxygen sensor (H02S) 1, bank 1,pump current - short to earthHeated oxygen sensor (H02S) 1, bank 1,pump current - short to mitiveHeated oxygen sensor (H02S) 1, bank 1,reference voltage - open circuitHeated oxygen sensor (H02S) 1, bank 1,reference voltage - short to earthHeated oxygen sensor (H02S) 1,I 1 Wiring, H02Sbank 1 or 2 - circuit malfunctionIPI 190PI191PI195PI 196PI 197PI 198Heated oxygen sensor (H02S) 1, bank 1,reference vottage - short to positiveHeated oxygen sensor (H02S) 1, bank 1,reference voltage - range/performance~r0blemHeated oxygen sensor (H02S) 1,bank 1 8 2 - interchangedIWiring, throttle valve tightlsticking, throttle motorposition sensorWiring short to earth, throttle motor positionsensorWiring short to positive, throttle motor positionsensorFuel pressurelpump, injector(s), intakelexhaustleak, EGR system, EVAP canister purge valve,H02SIntake leak, H02SIntake leak, H02SWiring open circuit, H02SWiring short to earth, H02SWiring short to positive, H02SWiring open circuit, H02S, HT leads, spark plugs,misfire detectionWiring short to earth, H02S, HT leads,spark plugs, misfire detectionWiring short to positive, H02S, HT leads,spark plugs, misfire detectionWiring, H02S, HT leads, spark plugs,misfire detectionH02S 1 on banks 1 & 2 incorrectly installedI7600 PI192 Fuel pressure sensor - supply voltage Wiring, fuel pressure sensor17601 Fuel pressure sensor - open circuit/short to Wiring open circuitlshort to positiveI I positive17602 PI194 Fuel pressure control valve - short to Wiring short to positive, fuel pressure controlpositivevalvePI199PI 201Fuel pressure control valve - open circuit/short to earthHeated oxygen sensor (H02S) 1, bank 1,heater circuit malfunctionHeated oxygen sensor (H02S) 1, bank 2,heater circuit malfunctionHeated oxygen sensor (H02S) 2, bank 1,heater circuit malfunctionHeated oxygen sensor (H02S) 2, bank 2,heater circuit malfunctionInjector 1 - circuit malfunctionWiring open circuitlshort to earth, fuel pressurecontrol valveWiring, H02SWiring, H02SWiring, H02SWiring, H02SWiring, injector

Model: A2 A3lS3 80 1,6/2,012,612,8 80 1,9 TDI (07193+) A464AUDI100lA6 1,812,012,6/2,814,2 A6 2,s TDI A6/S6/Allrc.~d MIS8CoupelCabriolet 1,812,012,612,8 Cabriolet 1,9 TDI lT-4-'Y+Engine managementVAG type5-digitEOBD typeFault locationProbable cause1761 0PI20217611 ( PI203 ( Injector 3 - circuit malfunction 1 Wiring, injector176121761 3PI 204PI205Injector 2 - circuit malfunction17614 1 PI206 I Injector 6 - circuit malfunction I Wiring, injector176151761 6PI207PI208Injector 4 - circuit malfunctionInjector 5 - circuit malfunctionWiring, injector17621 I PI21 3 I Injector 1 - short to positive I Wiring short to positive, injector1762217623PI214PI215- - - -Injector 7 - circuit malfunctionInjector 8 - circuit malfunctionWiring, injectorWiring, injector17624 1 PI216 I Injector 4 - short to positive I Wiring short to positive, injector17625176261762717628PI217PI218PI 219PI220Injector 2 - short to positiveInjector 3 - short to positiveInjector 5 - short to positiveInjector 6 - short to positiveInjector 7 - short to positiveInjector 8 - short to positive- - -- --Wiring, injectorWiring, injector17633 1 PI225 1 Injector 1 - short to earth I Wiring short to earth, injector17634 1 PI226 1 Injector 2 - short to earth I Wiring short to earth, injector17635 [ PI227-- - --1 Injector 3 - short to earthWiring short to positive, injectorWiring short to positive, injectorWiring short to positive, injectorWiring short to positive, injectorWiring short to positive, injectorWiring short to positive, injector17636 1 PI228 1 Injector 4 - short to earth ] Wiring short to earth, injector1763717638PI 229PI23017639 1 PI231 I Injector 7 - short to earth I Wiring short to earth, injector1764017645PI232PI237Injector 5 - short to earthInjector 6 - short to earth17646 1 PI238 1 Injector 2 - open circuit I Wiring open circuit, injector1764717648PI239PI 240Injector 8 - short to earthInjector I - open circuitWiring short to earth, injectorWiring short to earth, injector17649 1 PI241 I Injector 5 - open circuit I Wiring open circuit, injector1765017651PI 242PI 243Injector 3 - open circuitInjector 4 - open circuitWiring short to earth, injectorWiring open circuit, injector17652 1 PI244 1 Injector 8 - open circuit ( Wiring open circuit, injector1765317654176551765617658176591PI 245PI 246PI 247PI 250PI251Injector 6 - open circuitInjector 7 - open circuitInjector needle lift sensor - short to earthInjector needle lift sensor - range1performance problemInjector needle lift sensor - open circuit1short to positiveStart of injection - control differenceFuel tank level sensor - low inputFuel injection timing solenoid - short topositiveWiring open circuit, injectorWiring open circuit, injectorWiring open circuit, injectorWiring open circuit, injectorWiring short to earth, injector needle lift sensorInjector needle lift sensor, injector pipe defective,fuel level lowWiring open circuivshort to positive, injectorneedle lift sensorFuel injection timing solenoid, injector needle liftsensor, fuel level low, pump timingFuel level too lowWiring short to positive4

Engine managementModel: A2 A3lS3 80 1,6/2,012,6/2,8 80 1,9 TDI (07193 -+) A4lS41001A6 1,8/2,012,6/2,8/4,2 A6 2,s TDI AGISGlAllroad A81S8CoupeICabriolet 1,8/2,012,6/2,8 Cabriolet 1,9 TDI lT176601766117662176631766417668PI252PI253PI254PI255PI 256PI260Fuel injection timing solenoid - opencircuitlshort to earthInstrument panel, fuel consumptionsignal - short to earthInstrument panel, fuel consumptionsignal - short to positiveEngine coolant temperature (ECT)sensor - short to earthEngine coolant temperature (ECT)sensor - open circuitfshort to positiveInjector 1 - implausible signalProbable cause17669 1 PI261 I Injector 1 - control limit exceeded I Control period too long, wiring, injector1767017671176721767317674176751767617677PI262PI263PI264PI265PI266PI 267PI268PI269Injector I - control limit not reachedInjector 2 - implausible signalInjector 2 - control limit exceededInjector 2 - control limit not reachedInjector 3 - implausible signalInjector 3 - control limit exceededInjector 3 - control limit not reachedInjector 4 - implausible signalWiring open circuitlshort to earth, fuel injectiontiming solenoidWiring short to earth, instrument panelWiring short to positive, instrument panelWiring short to earth, ECT sensorWiring open circuitlshort to positive, ECT sensorNo control17678 / PI270 I Injector 4 - control limit exceeded I Control period too long, wiring, injector17679Ilnjector 4 - control limit not reachedControl period too short, fuel level low, air in fuelsystemNo controlControl period too long, wiring, injectorControl period too short, fuel level low, air in fuelsystemNo controlControl period too long, wiring, injectorControl period too short, fuel level low, air in fuelsystemNo controlControl period too short, fuel level low, air in fuelsystem17686 1 PI278 1 Fuel metering solenoid - short to positive I Wiring short to positive, fuel metering solenoid17687 PI 27917689 1 PI281 ( Fuel metering solenoid - short to earth I Wiring short to earth, fuel metering solenoid17690176951769617697176981769917700I770117702PI282PI287PI288PI289PI290PI291PI 292PI293PI294Fuel metering solenoid - open circuitfshortto earthFuel metering solenoid - open circuitTurbocharger (TC) bypass valve - opencircuitTurbocharger (TC) bypass valve - short topositiveTurbocharger (TC) bypass valve - short toearthEngine coolant temperature (ECT) sensor,ECM controlled cooling system - high inputEngine coolant temperature (ECT) sensor,ECM controlled cooling system - high inputEngine coolant thermostat - open circuitEngine coolant thermostat - short topositiveEngine coolant thermostat - short to earthWiring open circuitlshort to earth, fuel meteringsolenoidWiring open circuit, fuel metering solenoidWiring open circuit, TC bypass valveWiring short to positive, TC bypass valveWiring short to earth, TC bypass valveWiring, ECT sensorWiring, ECT sensorWiring open circuit, engine coolant thermostatWiring short to positive, engine coolantthermostatWiring short to earth, engine coolant thermostat

Model: A2 A3lS3 80 1,6/2,012,6/2,8 80 1,9 TDI (07/93-+) A4lS41001A6 1,812,012,6/2,8/4,2 A6 2,5 TDI A6lS61Allroad A8IS8CoupelCabriolet 1,812,012,6/2,8 Cabriolet 1,9 TDI TTEngine managementVAG type5-digit1 EOBD type / Fault locationI17703177041770517707177081773317734177391774317744 El17745Pi295Pi296Pi297PI299Pl 300P1325Pl 326P1331P1335PI336P1337Turbocharger (TC), bypass - flowmalfunctionEngine cooling system - malfunctionTurbocharger (TC)lthrottle valve, hoseconnection - pressure lossFuel metering solenoid - circuitmalfunctionRandomlmultiple cylinder(s) - misfiredetectedKnock control, cylinder 1 - control limitreachedKnock control, cylinder 2 - control limitreachedKnock control, cylinder 3 - control limitreachedKnock control, cylinder 4 - control limitreachedKnock control, cylinder 5 - control limitreachedKnock control, cylinder 6 - control limitreachedKnock control, cylinder 7 - control limitreachedKnock control, cylinder 8 - control limitreachedEngine torque control - limit reachedEngine torque monitoring - control limitexceededCamshaft position (CMP) sensor,bank 1 - short to earthProbable causeTC wastegate regulating valve,hose connection(s), injectorECT sensor, coolant thermostatHose connectionWiring, fuel metering solenoid-- --Fuel level low, fuel gauge tank sensorPoor quality fuel, incorrect fuel, insecure enginecomponent, KS incorrectly tightenedldefective,shield wiring open circuit, poor connectionPoor quality fuel, incorrect fuel, insecure enginecomponent, KS incorrectly tightenedldefective,shield wiring open circuit, poor connectionPoor quality fuel, incorrect fuel, insecure enginecomponent, KS incorrectly tightenedldefective,shield wiring open circuit, poor connectionPoor quality fuel, incorrect fuel, insecure enginecomponent, KS incorrectly tightenedldefective,shield wiring open circuit, poor connectionPoor quality fuel, incorrect fuel, insecure enginecomponent, KS incorrectly tightenedldefective,shield wiring open circuit, poor connectionPoor quality fuel, incorrect fuel, insecure enginecomponent, KS incorrectly tightenedldefective,shield wiring open circuit, poor connectionPoor quality fuel, incorrect fuel, insecure enginecomponent, KS incorrectly tightenedldefective,shield wiring open circuit, poor connectionPoor quality fuel, incorrect fuel, insecure enginecomponent, KS incorrectly tightenedldefective,shield wiring open circuit, poor connectionThrottle control unit, hose(s), TC system,MAP sensor, IAT sensor, MAF sensor, ECT sensorHose(s), TC system, throttle control unit,IAT sensor, MAP sensor, MAF sensor,ECT sensor, APP sensorWiring short to earth, CMP sensor17746ICamshaft position (CMP) sensor, I Wiring open circuiffshort to positive, CMP sensorbank 1 - open circuitkhort to positiveCrankshaft position (CKP) sensorlenginespeed (RPM) sensor - interchangedCamshaft position (CMP) sensor I1 Valve timing, CKPICMP sensor installation,bank llcrankshaft position (CKP) sensor -out of sequence17749 Ignition amplifier, primary circuit 1 - short to Wiring short to earth, ignition amplifier,1 earth I CMP sensor, HT leads, spark plugs

e managementModel: A2 A31S3 80 1,612,012,612,8 80 1,9 TDI (07193 -+) A41S41001A6 1,812,012,612,8/4,2 A6 2,5 TDI A6IS6IAllroad A8IS8CoupelCabriolet 1,8/2,012,6/2,8 Cabriolet 1,9 TDI lTVAG 5-digit type I ,EOBD type 1 Fault locationProbable cause1775017751177521775317754177551775617757177581775917762177631776417765PI 342PI343PI344PI345PI346PI347PI 348PI 349PI 350PI 351PI354PI355PI356PI357Ignition amplifier, primary circuit 1 - short topositiveIgnition amplifier, primary circuit 2 - short toearthIgnition amplifier, primary circuit 2 - short topositiveIgnition amplifier, primary circuit 3 - short toearthIgnition amplifier, primary circuit 3 - short topositiveCamshaft position (CMP) sensor 21bank 2lcrankshaft position (CKP) sensor -out of sequenceIgnition amplifier, primary circuit 1 - opencircuitIgnition amplifier, primary circuit 2 - opencircuitIgnition amplifier, primary circuit 3 - opencircuitCamshaft position (CMP) sensor,bank 1 - rangelperformance problemFuel quantity adjuster position sensorIgnition coillamplifier, cylinder 1 - opencircuitIgnition coillamplifier, cylinder 1 - short topositiveIgnition coillamplifier, cylinder 1 - short toearthWiring short to positive, ignition amplifier,CMP sensor, HT leads, spark plugsWiring short to earth, ignition amplifier,CMP sensor, HT leads, spark plugsWiring short to positive, ignition amplifier,CMP sensor, HT leads, spark plugsWiring short to earth, ignition amplifier,CMP sensor, HT leads, spark plugsWiring short to positive, ignition amplifier,CMP sensor, HT leads, spark plugsValve timing, CKPICMP sensor installation,CKP sensor rotorWiring short to earth, ignition amplifier,CMP sensor, HT leads, spark plugsWiring short to positive, ignition amplifier,CMP sensor, HT leads, spark plugsWiring short to positive, ignition amplifier,CMP sensor, HT leads, spark plugsIgnore trouble code, erase fault memoryWiring, fuel injection pumpWiring open circuit, ignition coillamplifierWiring short to positive, ignition coillamplifierWiring short to earth, ignition coillamplifierIgnition coillamplifier, cylinder 2 - open Wiring open circuit, ignition coillamplifiercircuit17767 Id PI359 Ignition coillamplifier, cylinder 2 - short to Wiring short to positive, ignition coillamplifierpositive17768 Id PI360 Ignition coillamplifier, cylinder 2 - short to Wiring short to earth, ignition coillamplifierearth17769 Ignition millamplifier, cylinder 3 - open Wiring open circuit, ignition coillamplifierI circuit17770lgnition coillamplifier, cylinder 3 - short to Wiring short to positive, ignition coillamplifier1positive17771 lgnition coillamplifier, cylinder 3 - short to Wiring short to earth, ignition coillamplifierI 1 earth177721Ignition coillamplifier, cylinder 4 - open Wiring open circuit, ignition coillamplifiercircuitI17773lgnition coillamplifier, cylinder 4 - short topositiveI earth17775 PI 367 Ignition coillamplifier, cylinder 5 - opencircuitWiring short to positive, ignition coillamplifier17774Ilgnition coillamplifier, cylinder 4 - short to Wiring short to earth, ignition coillamplifierWiring open circuit, ignition coillamplifier1 118 1 Engnemanagement[Autodata

Model: A2 A31S3 80 1,612,012,612,8 80 1,9 TDI (07193 -+) A41S4100lA6 1,8/2,0/2,6/2,8/4,2 A6 2,5 TDI A6lS61Allroad A8lS8CoupelCabriolet 1,8/2,012,6/2,8 Cabriolet 1,9 TDI lTtype5-digitEOBD typeFault locationProbable cause17776PI 368Ignition coillamplifier, cylinder 5 - short topositive-Wiring short to positive, ignition coillamplifier17777PI 369Ignition coillamplifier, cylinder 5 - short toearthWiring short to earth, ignition coillamplifier17778PI370Ignition coillamplifier, cylinder 6 - opencircuitWiring open circuit, ignition coillamplifier17779PI371Ignition coillamplifier, cylinder 6 - short topositiveWiring short to positive, ignition coillamplifier17780PI372Ignition coillamplifier, cylinder 6 - short toearthWiring short to earth, ignition coillamplifier17781PI 373Ignition coillamplifier, cylinder 7 - opencircuitWiring open circuit, ignition coillamplifier17782PI 374Ignition coillamplifier, cylinder 7 - short topositiveWiring short to positive, ignition coillamplifier17783PI 375Ignition coillamplifier, cylinder 7 - short toearthWiring short to earth, ignition coillamplifier17784PI 376Ignition coillamplifier, cylinder 8 - opencircuitWiring open circuit, ignition coillamplifier17785PI 377Ignition coil/amplifier, cylinder 8 - short topositiveWiring short to positive, ignition coillamplifier17786PI 378Ignition coillamplifier, cylinder 8 - short toearthWiring short to earth, ignition coillamplifier17793PI 385Engine control module (ECM) - defectiveECM17794PI386Engine control module (ECM), knockcontrol - defectiveECM17795PI 387Engine control module (ECM),BAR0 sensor - defectiveECM17796PI388Engine control module (ECM),ETS - defectiveECM17797PI 389Engine control module (ECM) 2 - defectiveECM17799PI391Camshaft position (CMP) sensor 21bank 2 - short to earthWiring short to earth, CMP sensorI7800PI 392Camshaft position (CMP) sensor 21bank 2 - open circuitlshort to positiveWiring open circuitlshort to positive, CMP sensor17801PI 393Ignition amplifier, primary circuit 1 - circuitmalfunctionWiring, ignition amplifier, HT leads, spark plugs17802PI 394Ignition amplifier, primary circuit 2 - circuitmalfunctionWiring, ignition amplifier, HT leads, spark plugs17803PI 395Ignition amplifier, primary circuit 3 - circuitmalfunctionWiring, ignition amplifier, HT leads, spark plugs17805PI397Crankshaft position (CKP) sensorlenginespeed (RPM) sensor - control limit reachedlnsecureldamaged rotor, CKPIRPM sensor17806PI 398Crankshaft position (CKP) sensortenginespeed (RPM) sensor - short to earthWiring short to earth, CKPIRPM sensor17807PI 399Crankshaft position (CKP) sensorlenginespeed (RPM) sensor - short to positiveWiring short to positive, CKPIRPM sensor17808PI 400Exhaust gas recirculation (EGR) valve1solenoid, bank 1 - circuit malfunctionWiring, EGR valve

Engine managementModel: A2 A3lS3 80 1,6/2,012,612,8 80 1,9 TDI (07193 -+) A4lS4100lA6 1,8/2,012,6/2,8/4,2 A6 2,5 TDI A6lS61Allroad A81S8CoupelCabriolet 1,8/2,0/2,6/2,8 Cabriolet 1,9 TDI TTVAG5-digittype178091781 0178111781 217815178161781 7178181781 91782217823178241782817829I EOBD type I Fault locationPI401PI402PI403PI404PI407PI408PI409PI410PI411Exhaust gas recirculation (EGR) valve1solenoid, bank 1 - short to earthExhaust gas recirculation (EGR) valve1solenoid, bank 1 - short to positiveExhaust gas recirculation (EGR) system -control differenceExhaust gas recirculation (EGR) system -basic settingExhaust gas recirculation temperature(EGRT) sensor - low inputExhaust gas recirculation temperature(EGRT) sensor - high inputEvaporative emission (EVAP) canister purgevalve - circuit malfunctionProbable causeWiring short to earth, EGR valveWiring short to positive, EGR valvelsolenoid17830 1 PI422 Secondary air injection (AIR) valve1 Wiring short to positive, AIR valvelsolenoidsolenoid - short to positive17831Secondary air injection (AIR) system, Hose connection(s), AIR valvelsolenoidbank 1 - insufficient flow detected1783317834178351783617837178381783917840IIPI414PI415PI416PI420PI421PI425PI426PI427PI428PI429PI430PI431PI432Evaporative emission (EVAP) canister purgevalve - short to positiveSecondary air injection (AIR) system,bank 2 - insufficient flow detectedSecondary air injection (AIR) system,bank 2 - leak detectedExhaust gas recirculation (EGR) valveposition sensor - lower limit exceededExhaust gas recirculation (EGR) valveposition sensor - upper limit exceededSecondary air injection (AIR) valve1solenoid - circuit malfunctionSecondary air injection (AIR) valve1solenoid - short to earthSecondary air injection (AIR) system,bank 1 - leak detectedEvaporative emission (EVAP) canister purgevalve - short to earthEvaporative emission (EVAP) canister purgevalve - open circuitVacuum pump, brakes - short to positiveVacuum pump, brakes - short to earthVacuum pump, brakes - open circuitVacuum pump, brakes - open circuitlshortto positiveVacuum pump, brakes - open circuitlshortto earthSecondary air injection (AIR) valve1solenoid - open circuitBasic setting not carried out, EGR systemBasic setting not carried out, EGR systemWiring short to earth, EGRT sensorWiring short to positive, earth wire defective,EGRT sensorWiring, EVAP canister purge valveWiring short to positive, EVAP canister purgevalveIntake leak, hose@) blockedlleaking,AIR valvelsolenoidIntake leak, hose(s) leaking, AIR valvelsolenoidBasic setting not carried outBasic setting not carried outWiring, AIR solenoidWiring short to earth, AIR valvelsolenoidAIR valve, exhaust leakWiring short to earth, EVAP canister purge valveWiring open circuit, EVAP canister purge valveWiring short to positive, vacuum pumpWiring short to earth, vacuum pumpWiring open circuit, vacuum pumpWiring open circuitlshort to positive, vacuumpumpWiring open circuitlshort to earth, vacuum pumpWiring open circuit, fuse, AIR valvelsolenoid

Model: A2 A3lS3 80 1,6/2,012,612,8 80 1,9 TDI (07/93+) A4lS41001A6 1,812,012,612,8/4,2 A6 2,s TDI A6lS61Allroad A8lS8CoupelCabriolet 1,8/2,0/2,612,8 Cabriolet 1,9 TDI lTEngine management IVAG type I EOBD type 1 Fault location5-digit178411784217843178441784517846178471784817849178501785117852178581785917860PI433PI434PI435PI436PI437PI438P 1439PI440PI441PI442PI443PI444PI450PI451PI452PI454PI455Secondary air injection (AIR) pump relay -open circuitSecondary air injection (AIR) pump relay -short to positiveSecondary air injection (AIR) pump relay -short to earthSecondary air injection (AIR) pump relay -circuit malfunctionExhaust gas recirculation (EGR) valve1solenoid, bank 2 - short to positiveExhaust gas recirculation (EGR) valve1solenoid, bank 2 - open circuitlshort toearthExhaust gas recirculation (EGR) valveposition sensor - basic settingExhaust gas recirculation (EGR)valve - open circuitExhaust gas recirculation (EGR) valve1solenoid, bank 1 - open circuitlshort toearthExhaust gas recirculation (EGR) valveposition sensor - high inputExhaust gas recirculation (EGR) valveposition sensor - low inputExhaust gas recirculation (EGR) valveposition sensor - rangelperformanceproblemSecondary air injection (AIR) system -short to positiveSecondary air injection (AIR) system -short to earthSecondary air injection (AIR) system -open circuitExhaust gas recirculation temperature(EGRT) sensor llbank 1 - open circuitlshort to positiveExhaust gas recirculation temperature(EGRT) sensor llbank 1 - short to earthExhaust gas recirculation temperature(EGRT) sensor llbank 1 - range1performance problem-Exhaust gas recirculation temperature(EGRT) control, bank 1 - control limitreachedExhaust gas recirculation temperature(EGRT) sensor 2lbank 2 - open circuitlshort to positive17866 PI458 Exhaust gas recirculation temperature(EGRT) sensor 2lbank 2 - short to earthProbable causeWiring open circuit, fuse, AIR pump relayWiring short to positive, AIR pump relayWiring short to earth, AIR pump relayWiring, AIR pump relayWiring short to positive, EGR valvelsolenoidWiring open circuitlshort to earth,EGR valvelsolenoidBasic setting not carried out, EGR systemWiring open circuit, EGR valveWiring open circuitlshort to earth, EGR solenoidWiring short to positive, EGR valve positionsensorWiring short to earth, EGR valve position sensorWiring, EGR valve position sensorWiring short to positive, AIR relayWiring short to earth, AIR relayWiring open circuit, AIR relayWiring open circuitlshort to positive,EGRT sensorWiring short to earth, EGRT sensorExhaust leak, wiring, EGRT sensorEGRT sensorWiring open circuitlshort to positive,EGRT sensorWiring short to earth, EGRT sensor

Model: A2 A31S3 80 1,612,012,6/2,8 80 1,9 TDI (07193 +) A41S41001A6 1,812,012,6/2,8/4,2 A6 2,s TDI A6IS6IAllroad A868CoupelCabriolet 1,8/2,012,6/2,8 Cabriolet 1,9 TDI TTVAG 5-digit lype I EOBD typeFault locationProbable causeExhaust gas recirculation temperature(EGRT) sensor 2lbank 2 - range1performance problemExhaust gas recirculation temperature(EGRT) control, bank 2 - control limitreachedExhaust gas recirculation temperature(EGRT) control, bank 1 - range1performance problemExhaust leak, wiring, EGRT sensorEGRT sensorExhaust leaklblockage, EGRT sensorExhaust gas recirculation temperature Exhaust leaklblockage, EGRT sensor(EGRT) control, bank 2 - range1performance problemVacuum system, brakes - mechanical fault I Vacuum pumpFuel pump relay - circuit malfunction Wiring, fuel pump relayFuel pump relay - short to earthFuel pump relay - short to positiveAlternator load signalIntake system - leak detectedClosed throttle position (CTP) switch -does not closeClosed throttle position (CTP) switch -does not openIdle speed control (KC) - lower limitreachedIdle speed control (ISC) - upper limitreachedIdle air control (IAC) valve - circuitmalfunctionIdle air control (IAC) valve - short topositiveIntake manifold air control solenoid 1 -current circuitIntake manifold air control solenoid 1 -short to positiveIntake manifold air control solenoid 2 -short to positiveIntake manifold air control solenoid 2 -short to earthIntake manifold air control solenoid 1 -short to earthIntake manifold air control solenoid 1 -open circuitEngine control relay - circuit malfunctionEngine control relay - short to positiveCamshaft position (CMP) control,bank 1 - malfunctionWiring short to earth, fuel pump relayWiring short to positive, fuel pump relayWiring, alternatorIntake leak, EGR system, EVAP system, hoseconnection(s), throttle control unitThrottle cablelvalve, wiring open circuitlshort topositive, CTP switch adjustmentldefective, ECMMoisture ingress, wiring short to earth,CTP switch adjustmentldefective, ECMThrottle control unitl basic setting, intakelexhaustleak, mechanical fault, AC signalsThrottle control unitlbasic setting, intakelexhaustleak, mechanical fault, AC signalsWiring, IAC valveWiring open circuitlshort to positive, IAC valveWiring, intake manifold air control solenoidWiring short to positive, intake manifold aircontrol solenoidWiring short to positive, intake manifold aircontrol solenoidWiring short to earth, intake manifold air controlsolenoidWiring short to earth, intake manifold air controlsolenoidWiring open circuit, intake manifold air controlsolenoidI Wiring, engine control relayWiring short to positive, engine control relayCylinder head oil pressure too low, CMP actuatorstickingldefective

Model: A2 A31S3 80 1,612,012,612,8 80 1,9 TDI (07193 -+) A41S41001A6 1,812,012,612,814,2 A6 2,s TDI A6lS61Allroad A81S8CoupelCabriolet 1,8/2,012,6/2,8 Cabriolet 1,9 TDI TTEngine management Itype5-digitEOBD typeFault locationProbable cause1792817930179311793217933179341793517936179371793817939179401794117942PI 520PI 522P1523PI524P1525P1526Pi 527PI528Pi 529P1530PI 531P1532P1533P1534Intake manifold air controlsolenoid 2 - open circuitCamshaft position (CMP) control,bank 2 - malfunctionSRS crash signal receivedFuel pump relay - open circuiffshort toearthCamshaft position (CMP) actuator,bank 1 - circuit malfunctionCamshaft position (CMP) actuator,bank 1 - short to positiveCamshaft position (CMP) actuator,bank 1 - short to earthCamshaft position (CMP) actuator,bank 1 - open circuitCamshaft position (CMP) actuator - shortto positiveCamshaft position (CMP) actuator - shortto earthCamshaft position (CMP) actuator - opencircuitIdle control - lean running speed belowspecificationCamshaft position (CMP) actuator,bank 2 - circuit malfunctionCamshaft position (CMP) actuator,bank 2 - short to positiveWiring open circuit, intake manifold air controlsolenoidCylinder head oil pressure too low, CMP actuatorstickingldefectiveAirbag triggeredWiring open circuitlshort to earth, fuel pump relayWiring, CMP actuatorWiring short to positive, CMP actuatorWiring short to earth, CMP actuatorWiring open circuit, CMP actuator17943 Camshaft position (CMP) actuator,1 / Wiring short to earth, CMP actuatorbank 2 - short to earth17944Camshaft position (CMP) actuator,I/ Wiring open circuit, CMP actuatorbank 2 - open circuit1794517946-1794717948-1794917950179511795217953P1537PI538iFuel shut& solenoid - malfunctionFuel shut-off solenoid - open circuiffshortto earthWiring short to positive, CMP actuatorWiring short to earth, CMP actuatorWiring open circuit, CMP actuatorThrottle control unit- - -Wiring, CMP actuatorWiring short to positive, CMP actuatorFuel shut-off solenoid (leakinglsticking)Clutch pedal position (CPP) Wiring, CPP switchp1539 I switch - rangelperformance problemVehicle speed signal - high inputI P1540P1541P1542P1543P1544P1545Fuel pump relay - open circuitThrottle motor position sensor 1 - range1performance problemThrottle motor position sensor 1 - low inputThrottle motor position sensor 1 - highinputThrottle valve control - malfunctionIWiring open circuitlshort to earth, fuel shut-offsolenoidExcessive vehicle speed, instrument paneldefectiveWiring open circuit, fuel pump relayThrottle valve requires cleaning, wiring, throttlemotor position sensorWiring short to earth, throttle motor positionsensorWiring short to positive, throttle motor positionsensorThrottle valve tightlsticking, wiring, throttlecontrol unit

I'kk4f1 AUDlrEngine managementModel: A2 A31S3 80 1,612,012,612,8 80 1,9 TDI (07193 -+) A4lS41001A6 1,8/2,012,612,814,2 A6 2,5 TDI A6IS6IAllroad A81S8CoupelCabriolet 1,812,012,6/2,8 Cabriolet 1,9 TDI lTtype5-digitEOBD typeFault locationProbable cause17954PI 546179551Turbocharger (TC) wastegate regulating Wiring short to earth, TC wastegate regulatingvalve - short to earthvalve17956 1 PI54817957PI 549PI 553PI 554PI 556PI 557Turbocharger (TC) wastegate regulatingvalve - short to positiveTurbocharger (TC) wastegate regulatingvalve - open circuitTurbocharger (TC) wastegate regulatingvatve - open circuitlshort to earthTurbocharger (TC) pressure - controldifferenceManifold absolute pressure (MAP) sensor1barometric pressure (BARO) sensor -rangelperformance problemThrottle control unit - basic settingconditionsTurbocharger (TC) pressure - upper limitexceededTurbocharger (TC) pressure - control limitnot reachedTurbocharger (TC) pressure - control limitexceededWiring short to positive, TC wastegate regulatingvalveWiring open circuit, TC wastegate regulatingvalveWiring open circuitlshort to earth, TC wastegateregulating valvelntakelexhaust leak, hoses interchangedlnotconnected, MAP sensor, TC wastegate regulatingvalve, turbocharger (TC) wastegate actuator, TClntakelexhaust leak, EGR system, EVAP canisterpurge valve, throttle control unit, wiring,MAP sensor, BAR0 sensorBasic setting conditions not metHoses interchangedlnot connected,TC wastegate regulating valve, turbocharger (TC)wastegate actuator, TCTC wastegate regulating valve, intake leak,TC defectiveHose connection interchangedlnot connectedI7966 Idle speed control (ISC) actuatorlthrottlei motor - circuit malfunctionWiring, ISC actuatorlthrottle motorThrottle control unit - basic setting Accelerator pedal or starter motor operatedmalfunctionduring basic settingI7968I I Maximum engine RPM exceeded Incorrect gear shift, wiring open circuit,CKPIRPM sensor17969 / PI561 I Fuel quantity adjuster - control difference I Wiring, fuel injection pump179701797117972179731797417976179771797817979IPI 562PI 563PI564PI565PI 566PI568PI 569PI 570PI 572I--Fuel quantity adjuster - upper stop valueFuel quantity adjuster - lower stop valueThrottle control unit - voltage low duringbasic settingThrottle control unit - lower stop notreachedAC compressor, load signal - implausiblesignalThrottle control unit - mechanical faultCruise control master switchEngine control module (ECM) - immobilizeractiveEngine mounting control solenoid,bank 2 - short to positive-Engme mounting control solenoid,bank 2 - short to earthFuel quantity adjuster blockedldefective,stop value reachedFuel quantity adjuster blockedldefective,lower stop value reachedBattery, wiringThrottle valve tightlsticking, ISC actuatorWiring, AC systemThrottle valve tightlstickingWiring, cruise control master switchlncorrectldamaged key, incorrectly coded,ECMlimmobilizer replacement without coding,wiring, immobilizer defectiveWiring short to positive, engine mounting controlsolenoid- --Wiring short to earth, engine mounting controlsolenoid

Model: A2 A363 80 1,6/2,0/2,6/2,8 80 1,9 TDI (07193 -) A4641001A6 1,8/2,0/2,6/2,8/4,2 A6 2,5 TDI A6IS6lAllroad A868CoupelCabriolet 1,8/2,0/2,612,8 Cabriolet 1,9 TDI TTvAG type 1 EOBD type / Fault location5-digit1798117983179841798517987PI573PI575PI 576PI 577PI579Engine mounting control solenoid,bank 2 - open circuitProbable cause17988 1 PI580 I Throttle motor, bank 1 - circuit malfunction I Wiring, throttle motor17989179901799317994179971799818000PI581PI 582PI585PI 586PI589PI 590PI592Engine mounting control solenoid,bank 1 - short to positiveEngine mounting control solenoid,bank 1 - short to earthEngine mounting control solenoid,bank 1 - open circuitThrottle control unit - basic settinqThrottle control unit - basic settingIdle speed adaptation - limit reachedWiring open circuit, engine mounting controlsolenoidWiring short to positive, engine mounting controlsolenoidWiring short to earth, engine mounting controlsolenoidWiring open circuit, engine mounting controlsolenoidBasic setting not carried outI I I18001 El 1 PI593 I Altitude adaption - signal outside tolerance I Intake leak, MAF sensor, throttle control unit1800718008180091801 0IPI 599PI600PI 601Throttle control unit - lower stop notreachedEngine mounting control solenoid,bank 1 8 2 - short to positiveAClheater air temperature controlswitch - short to earthAClheater air temperature controlswitch - open circuitBarometric pressure (BARO) sensor1manifold absolute pressure (MAP) sensor -implausible ratioIdle control - lean running speed abovespecificationEngine control module (ECM) -supply voltage low from ignition switchEngine control module (ECM) -supply voltageEngine control module (ECM) -supply voltage low from battery18011 I PI603 I Engine control module (ECM) - defective I ECM1801218014-PI 604PI606- -~ G n cont~moduleeEM) - defectiveRough road signal - circuit malfunctionBasic setting not carried outlntakelexhaust leak, AIR system, fuel pressure1pump, injector(s), EVAP canister purge valveThrottle motor, throttle control unitWiring short to positive, engine mounting controlsolenoidWiring short to earth, AClheater air temperaturecontrol switchWiring open circuit, AClheater air temperaturecontrol switchTC system, MAP sensorIAC valveBattery, alternator, wiring open circuitWiring, engine control relay18016 /PI608 Power steering pressure (PSP) switch - Wiring, PSP switchIcircuit malfunction18017PI609 Engine control module (ECM) - crash Airbag triggeredswitch-off triggered18018 / PI610 / Engine control module (ECM) - defective ECMBattery was disconnected, battery discharged,alternator, wiring open circuit, fuse- - - --ECMABS control module trouble code@) stored,CAN data bus18019 Malfunction indicator lamp (MIL) - short toI earthWiring short to earth18020 PI612 Engine control module (ECM) - coding Incorrectly coded18021 PI613 Malfunction indicator lamp (MIL) - open Wiring open circuitlshort to positivecircuitlshort to positive4

)EnginemanagementModel: A2 A31S3 80 1,6/2,0/2,6/2,8 80 1,9 TDI (07193+) A4641001A6 1,812,012,612,8/4,2 A6 2,s TDI A6IS6IAllroad A81S8CoupelCabriolet 1,8/2,012,612,8 Cabriolet 1,9 TDI l7type5-digitEOBD typeFault locationProbable cause1802318024 1 PI616 ( Glow plug warning lamp - short to positive I Wiring short to positiveIPI615Engine oil temperature (EOT) sensor -rangelperformance problemGlow plug warning lamp - open circuit/short to earthBulb, wiring open circuiffshort to earth18026 1 PI618 I Glow plug relay - short to positive 1 Wiring short to positive, glow plug relay1802718028Instrument panel, ECT signal - opencircuit/short to positive1 earthlnstrument panel, ECT signal - implausiblesignalCAN data bus - no signal18029Ilnstrument panel, ECT signal - short to Wiring short to earth, instrument panel180301803118032180331PI 61 9PI 620PI623PI 624PI625Glow plug relay - open circuit/short to earthEngine oil level, wiring, EOT sensor--Wiring open circuiffshort to earth, glow plug relayWiring open circuiffshort to positive, instrumentpanelWiring, instrument panel, ECT sensor18034 1 PI626 1 CAN data bus, TCM - no signal I TCM trouble code(s) stored, TCM incorrectly18037180381803918040180411804218044Malfunction indicator lamp (MIL) - requestsignal activeCAN data bus, TCM - incorrect signalI I I coded, wiring, matching resistor in ECMPI629PI 630PI631PI632PI 633PI634CAN data bus, cruise control - no signalAccelerator pedal position (APP)sensor 1 - low inputAccelerator pedal position (APP)sensor 1 - high inputAccelerator pedal position (APP) sensor -supply voltageAccelerator pedal position (APP)sensor 2 - low inputAccelerator pedal position (APP)sensor 2 - high inputCAN data bus, AC - no signal- II-Trouble code(s) stored in other system(s), wiring,matching resistor in ECMTrouble code(s) stored in other system(s)TCM trouble code@) stored, TCM incorrectlycoded, wiring, matching resistor in ECM-AC control module trouble code(s) stored, wiring,matching resistor in ECMSRS control module trouble code@) stored,wiring, matching resistor in ECM18045 / CAN data bus, electronic CE - no signal code@) stored, wiring, matching resistor1PI636CAN data bus, SRS - no signalAccelerator pedal position (APP)sensor 112 - rangelperformance problem18048 1 PI640 I Engine control module (ECM) - defective I ECMI80501805318056PI642PI 645PI648SRS control module - system malfunctionCAN data bus, 4WD - no signalCAN data bus - defectiveCruise control trouble code@) stored, wiring,matching resistor in ECMWiring short to earth, APP sensorWiring short to positive, APP sensorOperating voltage too highllow, wiringWiring short to earth, APP sensorWiring short to positive, APP sensorWiring, APP sensorTrouble code@) stored4WD trouble code(s) stored, wiring, matchingresistor in ECMWiring, matching resistor in ECM1 '26 1 Engnemanagement[Autodata

Model: A2 A3lS3 80 1,6/2,012,6/2,8 80 1,9 TDI (07193 -+) A4lS4100lA6 1,8/2,012,6/2,8/4,2 A6 2,5 TDI A6lS61Allroad A8lS8AUDICoupelCabriolet 1,8/2,0/2,6/2,8 Cabriolet 1,9 TDI TTEngine managementVAG 'ype5-digitI EOBD type I ~aumloutionI I IProbable cause18057 1 PI649 I CAN data bus, ABS - no signal ( ABS control module trouble code(s) . . stored,I wirinq, matchinq resistor in ECM18058180601806118062PI650PI652PI653PI 65418064 ( PI656 1 AC signal - short to earth I Wiring short to earth180651806618067180681806918070PI657PI 658Pi 659PI660PI661PI662CAN data bus, instrumentation - no signalTransmission control module (TCM) -system malfunctionABS control module - system malfunctionInstrumentation control module - systemmalfunctionAC signal - short to positiveCAN data bus, cruise control - incorrectsignalEngine coolant blower motor,speed 1 - short to positiveEngine coolant blower motor,s~eed I - short to earthEngine coolant blower motor,speed 2 - short to positiveEngine coolant blower motor,speed 2 - short to earthInstrumentation control module trouble code@)stored, wiring, matching resistor in ECMTrouble code@) storedTrouble code(s) storedTrouble code stored for engine oil levelltemperature sensorWiringCruise control trouble code@) stored, wiring,matching resistor in ECMWiring short to positive, engine coolant blowermotorWiring short to earth, engine coolant blowermotorWiring short to positive, engine coolant blowermotorWiring short to earth, engine coolant blowermotor18071 / PI663 ( Injector, activation - short to positive ( Wiring short to positive, ECM18072 1 PI664 I Iniector, activation - current circuit I Wiring open circuitkhort to earth18073 ( PI665 ( Injector - mechanical fault / Injector1807418075PI666PI 66718076 1 PI668 1 Injector 3 - current circuit ( Wiring open circuitkhort to earth18077180801808218084PI669PI672PI674PI676Injector 1 - current circuitInjector 2 - current circuitETS warning lamp - short to positive18086 PI678 ( ETS warning lamp - short to earth Instrumentation control module trouble code@)stored, wiring short to earth, matching resistor in18087 PI679 11808818089PI680PI 681ETSInjector 4 - current circuitEngine coolant blower motor,speed I - open circuitlshort to earthCAN data bus, instrumentation - incorrectsignalETS warning lamp - circuit malfunctionwarning lamp - open circuitLimp-home mode - activeEngine control module (ECM) -programming incompleteWiring open circuitlshort to earthWiring open circuitkhort to earthWiring open circuitlshort to earthWiring open circuitkhort to earthWiring, instrumentation control module troublecode(s) stored, matching resistor in ECMInstrumentation control module trouble code(s)stored, wiring, matching resistor in ECMInstrumentation control module trouble code(s)stored, wiring short to positive, matching resistorin ECM1lnstrumentation control module trouble code@)stored, wiring open circuit, matching resistor inECMThrottle control unit, APP sensorECM[AutodataEnglne management127

nglne managementModel: A2 A363 80 1,612,012,6/2,8 80 1,9 TDI (07193 +) A4641001A6 1,8/2,012,612,814,2 A6 2,s TDI A6IS6IAllroad A81S8CoupelCabriolet 1,8/2,012,612,8 Cabriolet 1,9 TDI TTVAG type5-digitProbable cause18090PI682 / CAN data bus. ABS - implausible signal ABS control module trouble code@) stored,wiring, matching resistor in ECMPI683 I CAN data bus. SRS - implausible signal SRS control module trouble code@) stored,wiring, matching resistor in ECMPI691Malfunction indicator lamp (MIL) - circuitmalfunctionMalfunction indicator lamp (MIL) - opencircuitlnstrumentation control module trouble code@)stored, wiring, matching resistor in ECMInstrumentation control module trouble code(s)stored, wiring open circuit, matching resistor inECM1PI692 Malfunction indicator lamp (MIL) - short to control module trouble code(s)earthstored, wiring short to earth, matching resistor inPI 693PI696Malfunction indicator lamp (MIL) - short topositiveCAN data bus, steering columnelectronics - incorrect signallnstrumentation control module trouble code(s)stored, wiring short to positive, matching resistorin ECMWiring, matching resistor in ECMPI851 I CAN data bus, ABS - incorrect signal ABS trouble code(s) stored, wiring, matchingresistor in ECMPI853 I CAN data bus, ABS - incorrect signal ABS trouble code@) stored, wiring, matchingresistor in ECMPI 854 I CAN data bus, ABS - defective ABS trouble code(s) stored, wiring, matchingresistor in ECMPI900PI901PI902PI903PI904PI905Engine coolant blower motor,speed 2 - open circuitlshort to earthEngine coolant blower motor run-onrelay - short to positiveEngine coolant blower motor run-onrelay - open circuitlshort to earthEngine coolant hydraulic blower motorsolenoid - short to positiveEngine coolant hydraulic blower motorsolenoid - open circuitlshort to earthCharge air coolant pump relay - short topositivePI906 Charge air coolant pump relay - open Wiring open circuitlshort to earth, charge aircircuitlshort to earthcoolant pump relayPI907 I Data bus, ECM 112 - defective 1 WiringPI908PI909PI910PI911Data bus, ECM 112 - software versionmonitoringData bus, ECM 112 - no signal from ECM 1Data bus, ECM 112 - no signal from ECM 2Data bus, ECM 112 - circuit malfunctionWiring open circuitlshort to earth, engine coolantblower motorWiring short to positive, engine coolant blowermotor run-on relayWiring open circuitlshort to earth, engine coolantblower motor run-on relayWiring short to positive, engine coolant hydraulicblower motor solenoidWiring open circuitlshort to earth, engine coolanthydraulic blower motor solenoidWiring short to positive, charge air coolant pumprelayData in ECM I & ECM 2 does not matchWiring, ECM 1Wiring, ECM 2Wiring, ECM 112PI912 Brake servo pressure sensor - open Wiring open circuitlshort to positive, brake servocircuitlshort to positivepressure sensorPI913 Brake servo pressure sensor - short to Wiring short to earth, brake servo pressureI earthsensor

Model: A2 A3lS3 80 1,612,012,612,8 80 1,9 TDI (07193-) A41S41001A6 1,812,012,6/2,814,2 A6 2,5 TDI A6IS6IAllroad A868CoupelCabriolet 1,8/2,012,6/2,8 Cabriolet 1,9 TDI TTAUDIEngine management 1VAG type5-digit1 EOBD type 1 Fault location Probable cause1832218328Pi914P192018331 ( P1923 1 Engine control module (ECM) 2 - malfunction I Trouble code(s) stored1945619458I P3000I P300219459 P3003194611946319464194651946619467194681946919470P3005P3007P3008P3009P3010P3011P3012P3013P3014Brake servo pressure sensor - range1performance problemEngine mounting control solenoid,bank 1 & 2 - open circuiffshort to earthCAN data bus, instrumentation - glow plugwarning lampVacuum leak, wiring, brake servo pressuresensorWiring open circuitlshort to earth, enginemounting control solenoidWiring, matching resistor in ECMAccelerator pedal position (APP) sensor - APP sensortransmission kick-down switch-- -Engine coolant heater relay 1, low output Wiring, engine coolant heater relayEngine coolant heater relay 2, high output Wiring, engine coolant heater relayCamshaft position (CMP) sensor - nosignalCamshaft position (CMP) sensor - signallimit exceededFuel cooling pump relay - short to positiveFuel cooling pump relay - open circuiffshort to earthFuel pump relay - short to positiveFuel pump relay - open circuiffshort to earthTurbocharger (TC) wastegate regulatingvalve B - short to positiveTurbocharger (TC) wastegate regulatingvalve B - open circuiffshort to earthAir gap, insecure sensorlrotor, wiring,CMP sensorInsecure rotor, camshaft alignment19471 I P3015 I Fuel bypass valve - short to positive I Wiring short to positive, fuel bypass valve19472194961949719560P3016P3040P3041P310419561I P310519717 P32626528065535--Fuel bypass valve - open c~rcuiffshort to earthGear ratio - imptausibleCAN data bus,instrumentation - implausible ECT signalIntake manifold air control solenoid - shortto msitiveIntake manifold air control solenoid - opencircuit/short to earthHeated oxygen sensor (H02S) 2,bank 1 & 2 - interchangedCAN data bus, ABS - defectiveEngine control module (ECM) - defectiveWiring short to positive, fuel cooling pump relayWiring open circuitlshort to earth, fuel coolingpump relayWiring short to positive, fuel pump relayWiring open circuitlshort to earth, fuel pump relayWiring short to positive, TC wastegate regulatingvalveWiring open circuitlshort to earth, TC wastegateregulating valveWiring open circuitlshort to earth, fuel bypass valveTransmission faultWiring, matching resistor in ECMWiring short to positive, intake manifold aircontrol solenoidWiring open circuitlshort to earth, intake manifoldair control solenoidH02S 2 on bank 1 8 2 incorrectly installedABS trouble code@) stored, wiring, matchingresistor in ECMECM-Trouble code may be displayed if engine is not idling during self-diagnosis due to missing CKP sensor signal. Ignore trouble code ifengine starts.Located at rear of exhaust camshaft.Throttle control unit incorporates the following components: TP sensor, CTP switch (if fitted), ISC actuatorlposition sensor orthrottle motorlposition sensor.May also produce HT voltage for cylinder 4.H May also produce HT voltage for cylinder 3.Incorporates heated oxygen sensor (H02S) 2.4

Engine managementModel: 80 1,612,O 1001A6 2,OYear: 1991 -07192Engine code: ME, ABM, ABTSystem: Bosch Mono-Motronic MA1.2.180 - in underbonnet fuseboxlrelay plate100lA6 - in underbonnet relay plateNOTE: 35 pin ECM multi-plug.General informationRefer to the front of this manual for general test conditions,terminology, detailed descriptions of wiring faults and ageneral trouble shooter for electrical and mechanical faults.Trouble codes are displayed by using an LED connected tothe data link connector (DLC).n The ECM fault memory can also be checked and erasedusing diagnostic equipment connected to the data linkconnector (DLC).Self-diagnosis using flash type trouble codes may notdisplay all available diagnostic information.Carry out road test for 10 minutes.AccessingEnsure ignition switched OFF.Bridge black data link connector (DLC) terminal 1 H [A] andbrown or white data link connector (DLC) terminal 1 H [B]with a switched lead - contacts normally open.Connect LED test lamp between black data link connector(DLC) terminal 2 [A] and ECM terminal 33.80: ECM located behind passenger's glovebox.100: ECM located in plenum chamber.NOTE: DO NOT disconnect ECM multi-plug as this will erase faultmemory.Start engine. Allow to idle.NOTE: If engine does not start: Crank engine for 6 seconds.Leave ignition switched ON.Operate switch for 4 seconds.Release switch. Check that LED flashes.Count LED flashes. Note trouble code.Each trouble code consists of four groups of one to fourflashes.A 2,5 second pause separates each trouble code group [A].Repeat switch operation. Note trouble codes. Compare withtrouble code table.End of test sequence indicated by trouble code 0000(long flashes).Switch ignition OFF. Rectify faults as necessary.

Model. 80 1,612,O 1001A6 2,OEngine managementErasingMethod 1Ensure ignition switched OFF.Bridge black data link connector (DLC) terminal 1 [A] andbrown or white data link connector (DLC) terminal 1 [B] witha switched lead - contacts normally open.Operate switch and hold.Switch ignition ON.Release switch after 5 seconds.Repeat checking procedure to ensure no data remains inECM fault memory.Method 2Ensure ignition switched OFF.Disconnect ECM multi-plug or battery earth lead.NOTE: ECM adaptive memory may be erased causing erraticrunning faults. Carry out road test to allow ECM tore-learn basic values.WARNING: Disconnecting the battery may erase memory fromelectronic units (e.g. radio, clock).Trouble code identificationtype4-digit0000Fault locationEnd of test sequence1111 ( Engine control module (ECM) I ECM1231 I Vehicle speed sensor (VSS) ( Wiring, speedometer, VSS12322113Idle speed control (ISC) actuatorCrankshaft position (CKP) sensorI Closed throttle position (CTP) switchProbable cause-Wiring, multi-plug incorrectly wired, ISC actuatorInsecure rotor, wiring, CKP sensorAccelerator cable adjustment, CTP switchadjustment, wiring, CTP switch221 2 I Throttle position (TP) sensor I Wiring, poor connection, TP sensor22342312Engine control module (ECM) - supply voltageEngine coolant temperature (ECT) sensorBattery, wiring2322 I Intake air temperature (IAT) sensor I Wiring, IAT sensorWiring, poor connection, ECT sensor2341 rn 1 Heated oxygen sensor (H02S) - lambda control Heating inoperative, exhaust leak, misfire, fuelpressurelpump, EVAP canister purge valve23422413 fl4444Heated oxygen sensor (H02S)Mixture control (MC)No fault found -Wiring, H02S, heating inoperative, fuel level lowFuel level low, fuel pressurelpump, intakelexhaustleak, misfire, HOZS, EVAP canister purge valve,injector, excessive fuel in engine oilrn Trouble code may be displayed if engine is not idling during self-diagnosis due to missing CKP sensor signal. Ignore trouble code ifengine starts.After repairs, erase learnt lambda control values: Wait 30 seconds. Disconnect battery or ECM multi-plug for at least 30 seconds.Carry out road test to allow ECM to re-learn basic values.

I Engine managementModel: 80 1,612,O 1001A6 2,OVAG type5-digit00000Fault location 1 Probable causeNo fault found -Vehicle speed sensor (VSS)I Wiring, speedometer, VSSIdle speed control (ISC) actuatorI Wiring, multi-plug incorrectly wired, ISC actuatorCrankshaft position (CKP) sensorClosed throttle position (CTP) switchThrottle position (TP) sensorEngine coolant temperature (ECT) sensorIntake air temperature (IAT) sensorKnock sensor (KS)Heated oxygen sensor (H02S)Engine control module (ECM) - supply voltageHeated oxygen sensor (H02S) - lambda controlHeated oxygen sensor (H02S)Mixture control (MC)Idle speed control (ISC) actuator position sensorEngine control module (ECM) immobilizer activeEngine control module (ECM)IInsecure rotor, wiring, CKP sensorAccelerator cable adjustment, CTP switchadjustment, wiring, CTP switchI Wiring, poor connection, TP sensorI Wiring, poor connection, ECT sensorWiring, IAT sensorWiring, KSI Wiring, H02S, heating inoperative, fuel level lowI Battery, wiringHeating inoperative, exhaust leak, misfire,fuel pressurelpump, EVAP canister purge valveWiring, H02S, heating inoperative, fuel level lowFuel level low, fuel pressurelpump, intakelexhaustleak, misfire, H02S, EVAP canister purge valve,injector, excessive fuel in engine oilWiring, throttle valve, ISC actuator position sensorlncorrectldamaged key, incorrectly coded,ECMlimmobilizer replacement without coding,wiring, immobilizer defectiveECMrn Trouble code may be displayed if engine is not idling during self-diagnosis due to missing CKP sensor signal. Ignore trouble code ifengine starts.rn After repairs, erase learnt lambda control values: Wait 30 seconds. Disconnect battery or ECM multi-plug for at least 30 seconds.Carry out road test to allow ECM to re-learn basic values.4

Model:Year:Engine code:System:AAE, ABM, ABTBosch Mono-Motronic MA1.2.3AUDI80 - in underbonnet fuseboxlrelay plate 100lA6 - in underbonnet relay ptateNOTE: 45 pin ECM multi-plug.General informationRefer to the front of this manual for general test conditions,terminology, detailed descriptions of wiring faults and ageneral trouble shooter for electrical and mechanical faults.0 Carry out road test for at least 10 minutes.o If engine does not start: Crank engine for 6 seconds. Leaveignition switched ON.AccessingThe engine control module (ECM) fault memory can only beaccessed using diagnostic equipment connected to the datalink connector (DLC).NOTE: Brown or white data link connector (DLC) terminal 1 is notconnected to ECM terminal 11.ErasingEnsure ignition switched OFF.Disconnect ECM multi-plug or battery earth lead.NOTE: ECM adaptive memory may be erased causing erraticrunning faults. Carry out road test to allow ECM tore-learn basic values.Diagnostic equipment can also be used to erase data fromECM fault memory.WARNING: Disconnecting the battery may erase memory fromelectronic units (e.g. radio, clock).Trouble code identificationtype4-digitI0000 I End of test sequence -11111231Fault locationEngine control module (ECM)Vehicle speed sensor (VSS)Probable cause1232 I Idle speed control (ISC) actuator I Wiring, multi-plug incorrectly wired, ISC actuator2113 I Crankshaft position (CKP) sensor I Insecure rotor, wiring, CKP sensor2121 1Closed throttle position (CTP) switch22122234Throttle position (TP) sensorEngine control module (ECM) - supply voltageECMWiring, speedometer, VSSAccelerator cable adjustment, CTP switchadjustment, wiring, CTP switchWiring, poor connection, TP sensorBattery, wiring2312 I Engine coolant temperature (ECT) sensor I Wiring, poor connection, ECT sensor

AUDIModel: 80 1,612,O 1001A6 2,OEngine managementtype4-digitFault locationProbable causeI2322 I Intake air temperature (IAT) sensor I Wiring, IAT sensor2341 0 Heated oxygen sensor (H02S) - lambda control Heating inoperative, exhaust leak, misfire,fuel pressurelpump, EVAP canister purge valve2342 I Heated oxygen sensor (H02S) 1 Wiring, H02S, heating inoperative, fuel level low2413 Mixture control (MC)4444No fault foundFuel level low, fuel pressurelpump, intakelexhaustleak, misfire, H02S, EVAP canister purge valve,injector, excessive fuel in engine oil-Trouble code may be displayed if engine is not idling during self-diagnosis due to missing CKP sensor signal. Ignore trouble code ifengine starts.H After repairs, erase learnt lambda control values: Wait 30 seconds. Disconnect battery or ECM multi-plug for at least 30 seconds.Carry out road test to allow ECM to re-learn basic values.type5-digitFault location00000 I No fault found 1 -Probable cause00281 I Vehicle speed sensor (VSS) I Wiring, speedometer, VSS00282 1 Idle speed control (ISC) actuator I Wiring, multi-plug incorrectly wired, ISC actuator00515 rn I Crankshaft position (CKP) sensor I Insecure rotor, wiring, CKP sensor0051 6 / Closed throttle position (CTP) switch Accelerator cable adjustment, CTP switchadjustment, wiring, CTP switch0051800522Throttle position (TP) sensorEngine coolant temperature (ECT) sensor00523 1 Intake air temperature (IAT) sensor 1 Wiring, IAT sensor00524 1 Knock sensor (KS) I Wiring, KS00525 ( Heated oxygen sensor (H02S) I Wiring, H02S, heating inoperative, fuel level low00532 1 Engine control module (ECM) - supply voltage 1 Battery, wiring00537 IWiring, poor connection, TP sensorWiring, poor connection, ECT sensorHeated oxygen sensor (H02S) - lambda control Heating inoperative, exhaust leak, misfire,fuel pressurelpump, EVAP canister purge valve00525 1 Heated oxygen sensor (H02S) I Wiring, H02S, heating inoperative, fuel level lowIMixture control (MC)Idle speed control (ISC) actuator position sensorEngine control module (ECM) immobilizer active65535 I Engine control module (ECM) I ECMrn Trouble code may be displayed if engine is not idling during self-diagnosis due to missing CKP sensor signal. Ignore trouble code ifenglne starts.After repairs, erase learnt lambda control values: Wait 30 seconds. Disconnect battery or ECM multi-plug for at least 30 seconds.Carry out road test to allow ECM to re-learn basic values.aIFuel level low, fuel pressurelpump, intakelexhaustleak, misfire, H02S, EVAP canister purge valve,injector, excessive fuel in engine oilWiring, throttle valve, ISC actuator position sensorlncorrectldamaged key, incorrectly coded,ECMlimmobilizer replacement without coding, wiring,immobilizer defective

IModel: 80 1,9 TDI (-06193) 100 2,5 TDIYear: 1990-94Engine code:IT, 12, AAT, ABPSystem: Bosch EDC 1.2.3 Bosch EDC 1.2.4Bosch EDC 1.2.6 Bosch EDC 1.2.9Engine management80 - in underbonnet fuseboxlrelay plate 100 1991 * - in underbonnet relay plate100 4991 - under fascia, driver's sideGeneral informationRefer to the front of this manual for general test conditions,terminology, detailed descriptions of wiring faults and ageneral trouble shooter for electrical and mechanical faults.Trouble codes are displayed by the malfunction indicatorlamp (MIL).The ECM fault memory can also be checked and erasedusing diagnostic equipment connected to the data linkconnector (DLC).Self-diagnosis using flash type trouble codes may notdisplay all available diagnostic information.AccessingEnsure ignition switched OFF.Bridge black data link connector (DLC) terminal 1 rn [A] andbrown data link connector (DLC) terminal 1 rn [B] with aswitched lead - contacts normally open.Start engine. Allow to idle.NOTE: If engine does not start: Crank engine for 6 seconds.Leave ignition switched ON.Operate switch for 4 seconds minimum.Release switch. Check that MIL flashes.Count MIL flashes. Note trouble code.Each trouble code consists of four groups of one to fourflashes.A 2,5 second pause separates each trouble code group [A].Repeat switch operation. Note trouble codes. Compare withtrouble code table.NOTE: Maximum of 5 trouble codes can be stored by memory atone time.End of test sequence indicated by trouble code 0000(long flashes).Switch ignition OFF. Rectify faults as necessary.-a-Enq~ne rnanaqemenl 135

1 Engine management IErasingEnsure ignition switched OFF.Bridge black data link connector (DLC) terminal 1 [A] andbrown data link connector (DLC) terminal 1 [B] with aswitched lead - contacts normally open.Access trouble codes until flash code 4444 displayed.Operate switch for 4 seconds minimum.Release switch. Switch ignition OFF.Operate switch and hold.Switch ignition ON.Release switch after 4 seconds minimum to display flashcode 4444.Operate switch for 4 seconds minimum. Fault memoryerased.Repeat checking procedure to ensure no data remains inECM fault memory.Trouble code identificationFlash type Fault location4-digitEngine control module (ECM) -Ill1 I defectiveProbable causeI ECM1231 ( Vehicle speed sensor (VSS) I Wiring, speedometer, VSS21112131Crankshaft position (CKP) sensorStop lamp switchlbrake pedal position(BPPI switch - imolausible ratioAir gap, metal particles, insecure sensorlrotor, wiring, CKP sensorWiring, both switch positions not synchronised, stop lamp switch,BPP switchin fuel system, fuel level low, wiring, CKP sensor, injector needle

Engine management Itype4-digitFault locationProbable cause2311 1 Fuel temperature sensor Fuel filter pre-heater, fuel filter non-return valve, wiring,fuel temperature sensor2312 Engine coolant temperature (ECT)sensorWiring, poor connection, ECT sensor2322 I Intake air temperature (IAT) sensor I Wiring, poor connection, IAT sensor31314113432143324444Accelerator pedal position (APP)sensorFuel quantity adjusterExhaust gas recirculation (EGR)solenoidFuel shut-off solenoidEngine control module (ECM) -output stagesNo fault foundIncorrectly adjusted, wiring, APP sensorIncorrectly set, wiring, fuel injection pumpWiring, EGR solenoidWiring, fuel shut-off solenoidWiring, ECM controlled components--5-digittypeFauit locationProbable cause00281 I Vehicle speed sensor (VSS)00513 Crankshaft position (CKP) sensor00519 Manifold absolute pressure (MAP)sensor00522 Engine coolant temperature (ECT)Wiring, speedometer, VSSAir gap, metal particles, insecure sensorlrotor, wiring, CKP sensorTC wastegate regulating valve, hose connection(s), poorconnection, wiring, MAP sensor, ECMWiring, poor connection, ECT sensor00523Wiring, poor connection, IAT sensorWiring, both switch positions not synchronised, stop lamp switch,(BPP) switch - implausible ratio BPP switch00527 1 lntake air temperature (IAT) sensor Wiring, poor connection, IAT sensor00532 Engine control module (ECM) - Fuse, alternator, battery, current draw with ignition OFF,supply voltageengine control relay, wiring00539 Fuel temperature sensorFuel filter pre-heater, fuel filter non-return valve, wiring,fuel temperature sensor00541 Fuel quantity adjuster position sensor Wiring, fuel quantity adjuster position sensor00542 Injector needle lift sensorAir in fuel system, fuel level low, wiring, CKP sensor, injector needlelift sensor00550 Start of injection - controlWiring, fuel injection timing solenoid, injector needle lift sensor,air in fuel system, fuel level low, pump timing00552 Volume air flow (VAF) sensorlntake leak, EGR system hose connections interchanged, wiring,VAF sensor00560 Exhaust gas recirculation (EGR)00575 Intake manifold pressureHose connection(s), wiring, EGR solenoidlvalvelntake leaklblockage, MAP sensor, MAF sensor, TC wastegateactuatorlregulating valve, hoses interchangedlnot connected,wiring00625 Vehicle speed signalWiring, speedometer, VSS00627 Fuel filter water level sensorWater in filter, wiring, fuel filter water level sensor-IEngine management 137

Model: 80 1,9 TDI (+06/93) 100 2,5 TDIEngine managementProbable cause0066800671 I Cruise control master switch00741 Stop lamp switchlbrake pedal position00765Engine control module (ECM) -supply voltage lowEngine control module (ECM) -supply voltageEngine control module (ECM) -supply voltage01117 I Alternator load signal01 242 Engine control module (ECM) -Battery, wiring, engine control relayWiring, cruise control master switchWiring, both switch positions not synchronised, stop lamp switch,BPP switchWiring, fuel injection pumpIncorrectly adjusted, wiring, APP sensorWiring, engine control relayWiring, engine control relayWiring, alternatorWiring, fuel shut-off solenoidWiring, ECM controlled componentssolenoid01268 1 Fuel quantity adjuster65535 Engine control module (ECM) -defectiveWiring, EGR solenoidIncorrectly set, wiring, fuel injection pumpECM

Model: 80 2,O 16V 100 2,0 1001A6 2,O 16V AUDlCoupe 2,O 16VYear: 1991-97Engine code:6A, AAD, ACESystem: Bosch KE Motronic 1.211.2.111.2.2rEngine management*kf-80, Coupe - in underbonnet fuseboxhelay plate100, A6 - in underbonnet relay plateGeneral informationRefer to the front of this manual for general test conditions,terminology, detailed descriptions of wiring faults and ageneral trouble shooter for electrical and mechanical faults.Trouble codes are displayed by using an LED connected tothe data link connector (DLC).The ECM fault memory can also be checked and erasedusing diagnostic equipment connected to the data linkconnector (DLC).Self-diagnosis using flash type trouble codes may notdisplay all available diagnostic information.Carry out road test for at least 5 minutes.0 Briefly fully depress throttle pedal to increase engine speedover 3000 rpm.Allow to idle for 2 minutes.If engine does not start: Crank engine for 6 seconds.End of test sequence indicated by trouble code 0000(long flashes).Switch ignition OFF. Rectify faults as necessary.AccessingEnsure ignition switched OFF.Connect LED test lamp between black data link connector(DLC) terminal 2 [A] and blue data link connector (DLC)terminal 2 [C].Bridge black data link connector (DLC) terminal 1 [A] andbrownlwhite data link connector (DLC) terminal 1 [B] witha switched lead - contacts normally open.Switch ignition ON.Operate switch for 4-6 seconds.Release switch. Check that LED flashes.Count LED flashes. Note trouble code.Each trouble code consists of four groups of one to fourflashes.A 2,5 second pause separates each trouble code group [A].Repeat switch operation. Note trouble codes. Compare withtrouble code table.[Autodata Eng~ne management 139

1 140 I,,,,,,,,,,IAutodata1 Engine managementErasingEnsure ignition switched OFF.Connect LED test lamp between black data link connector(DLC) terminal 2 rn [A] and blue data link connector (DLC)terminal 2 0 [C].Bridge black data link connector (DLC) terminal 1 [A] andbrownlwhitelyellow data link connector (DLC) terminal 1[B] with a switched lead - contacts normally open.Access trouble codes. Switch ignition OFF.Operate switch. Switch ignition ON after 4-6 seconds.Release switch after 4-6 seconds. Check that LED flashes.Differential pressure regulator activated. Trouble codedisplayed: 4341.Operate switch for 4-6 seconds to activate each of thefollowing components:Evaporative emission (EVAP) canister purge valve. Troublecode displayed: 4343.ldle air control (IAC) valve. Trouble code displayed: 4431.Cold start injector. Trouble code displayed: 4443.After activation of last component operate switch for4-6 seconds to display flash code 0000 (long flashes).Operate switch for 4-6 seconds to erase fault memory.Repeat checking procedure to ensure no data remains inECM fault memory.Trouble code identificationFlash type4-digit0000Fault location 1 Probable causeEnd of test sequenceEngine control module (ECM)Vehicle speed sensor (VSS)Camshaft position (CMP) sensor, cylinder 4 HT leadCrankshaft position (CKP) sensorClosed throttle position (CTP) switchWide open throttle (WOT) switchKnock control - control limit exceededKnock sensor (KS) 1Knock sensor (KS) 2I-ECMWiring, speedometer, VSSCMP sensor tabs not facing towards distributor,spark plug(s), HT lead@), distributor caplrotor,wiring, CMP sensorInsecure rotor, wiring, CKP sensor, volume air flow(VAF) sensor plate tighffstickingAccelerator cable adjustment, CTP switchadjustment, throttle valve tighffsticking, wiring,CTP switchAccelerator cable adjustment, wiring, WOT switchIncorrect fuellcompression, ignition timing,screening of KS wiring, insecure engine componentI Wiring, KS, ECMI Wiring, KS, ECMldle speed control Ignition timing, EVAP canister purge valve 112,intake leak, VAF sensor, throttle valve adjustment,AC signal missing, wiringVolume air flow (VAF) sensorWiring, VAF sensorEngine coolant temperature (ECT) sensorWiring, poor connection, ECT sensorHeated oxygen sensor (H02S) - lambda control Mixture adjustment, HO2S heaterlwiring, cold startinjector, EVAP canister purge valve, intakelexhaustleak, ECM earth wire to intake manifoldHeated oxygen sensor (H02S)Wiring, HOZS, heating inoperativeIdle air control (IAC) valveWiring, IAC valve, ECMNo fault found I -

IModel 80 2,0 16V 100 2,0 1001A6 2,0 16V Coupe 2,0 16VAUDI/+-'$$/Engine management Itype5-digit00000Fa"# locationNo fault found00281 1 Vehicle speed sensor (VSS) I Wiring, speedometer, VSS00514Camshaft position (CMP) sensor, cylinder 4 HT lead0051 5 I Crankshaft position (CKP) sensor0051 6 I Closed throttle position (CTP) switchProbable cause-CMP sensor tabs not facing towards distributor,spark plug(s), HT lead(s), distributor caplrotor,wiring, CMP sensorInsecure rotor, wiring, CKP sensor, volume air flow(VAF) sensor plate tightlstickingAccelerator cable adjustment, CTP switchadjustment, throttle valve tightlsticking, wiring,CTP switch00517 1 Wide open throttle (WOT) switch I Accelerator cable adjustment, wiring, WOT switch00520 1 Volume air flow (VAF) sensor I Wiring, VAF sensor00522 1 Engine coolant temperature (ECT) sensor I Wiring, poor connection, ECT sensor0052400525005330053500537Knock sensor (KS) 1Heated oxygen sensor (H02S)Idle speed controlKnock control - control limit exceededHeated oxygen sensor (H02S) - lambda control00540 1 Knock sensor (KS) 2 I Wiring, KS, ECM00558 Mixture control (MC) - mixture lean--Wiring, KS, ECMWiring, HOZS, heating inoperativeIgnition timing, EVAP canister purge valve 112,intake leak, VAF sensor, throttle valve adjustment,AC signal missing, wiringIncorrect fuellcompression, ignition timing,screening of KS wiring, insecure engine componentMixture adjustment, H02S heaterlwiring, cold startinjector, EVAP canister purge valve, intakelexhaustleak, ECM earth wire to intake manifoldECM earth wire to intake manifold, intake leak,idle speed adjustment00559--[ Mixture control (MC) - mixturerich 1 Injector(s), cold start injector, idle speed adjustment0125717978Mixture control (MC)Idle air control (IAC) valveEngine control module (ECM) - immobilizer active65535 1 Engine control module (ECM) I ECMECM earth wire to intake manifold, intake leak,idle speed adjustment, injector(s), cold startinjector, EVAP canister purge valveWiring, IAC valve, ECMIncorrectldamaged key, incorrectly coded,ECMlimmobilizer replacement without coding,wiring, immobilizer defective/Autodata I Engmemanagement 141

AUDl Model: S6 2,2Year: 1994-96Engine managementEngine code:AANSystem: Bosch Motronic M2.3 Bosch Motronic M2.3.2In underbonnet relay plateGeneral informationRefer to the front of this manual for general test conditions,terminology, detailed descriptions of wiring faults and ageneral trouble shooter for electrical and mechanical faults.AccessingThe engine control module (ECM) fault memory can beaccessed using diagnostic equipment connected to the datalink connector (DLC).ErasingEnsure ignition switched OFF.Disconnect ECM multi-plug or battery earth lead.. -NOTE: ECM adapt;ve memory may be erased causingrunning faults. Carry out road test to allow ECM tore-learn basic values.Diagnostic equipment can also be used to erase data fromECM fault memory.WARNING: Disconnecting the battery may erase memory fromelectronic units (e.g. radio, clock).Trouble code identificationFlash type / Fault location4-digit0000 End of test sequence1111 Engine control module (ECM) - defective1231 Vehicle speed sensor (VSS)Engine speed (RPM) sensorCrankshaft position (CKP) sensorcamshaft position (CMP) sensorClosed throttle position (CTP) switch-ECMWiring, speedometer, VSSAir gap, metal particles, insecure sensor,flywheel ring gear damaged, wiring,CKPIRPM sensor multi-plugs interchanged,RPM sensorAir gap, metal particles, insecure sensor,flywheel pin bentlmissing, wiring, CKPIRPM sensormulti-plugs interchanged, CKP sensorValve timing, distributor alignment, wiring,CMP sensor, CKP sensor flywheel pin bent/missing, CMP sensorAccelerator cable adjustment, CTP switchadjustment, throttle valve tightlsticking,wiring, CTP switch

Engine managementtype4-digitFault locationProbable cause2141 1 Knock control - control limit exceededPoor quality fuel, CKPIRPM sensor wiring,insecure engine component, KS shield wiringI2142 1 Knock sensor (KS) 1 Wiring, KS looseldefective, ECM2144 I Knock sensor (KS) 2 Wiring, KS looseldefective, ECM2212 I Throttle position (TP) sensor Wiring, poor connection, TP sensor-22142222Maximum engine RPM exceededManifold absolute pressure (MAP) sensorIncorrect gear shift, AT faultHose leaklblockage, hose fluid collector full,TC wastegate regulating valve, MAP sensor(in ECM)2223 I Barometric pressure (BARO) sensorWiring, BARO sensor2231Maximum boost pressure exceededIdle speed control (ISC)Hoses interchangedlnot connected, hosesblockedlleaking, TC wastegate actuatorlregulatingvalve, MAP sensor (in ECM)lntake leaklblockage, wiring, IAC valve, MAFsensor, throttle valve tightlsticking2234 Engine control module (ECM) - supply voltage Alternator, battery, current drawzh ignitionF~,wiring2312 ( Engine coolant temperature (ECT) sensor Wiring, poor connection, ECT sensorECMtlCM electrical connection TCM trouble code(s) stored, wiring,2314 1 transmission fault23222324Intake air temperature (IAT) sensorMass air flow (MAF) sensorWiring, poor connection, IAT sensorlntake leak, wiring, MAF sensorHeated oxygen sensor (H02S) - lambda control Fuel level low, fuel pressurelpump, misfire,2341 intakelexhaust leak, wiring, H02SI Heated oxygen sensor (H02S)lntakelexhaust leak, wiring, H02S, heatinginoperative, fuel level low, misfire2413Mixture control (MC)Fuel pressurelpump, misfire, intakelexhaust leak,MAF sensor4343 I Evaporative emission (EVAP) canister purge valve Wiring, fuse, EVAP canister purge valve44114412Injector 1Injector 2Wiring, fuse, injectorWiring, fuse, injector4413Injector 3Wiring, fuse, injector4414 I Injector 4Wiring, fuse, injectorlnjector 5ldle air control (IAC) valveTurbocharger (TC) wastegate regulating valveWiring, fuse, injectorwiring, fuse, l ~EalveWiring, fuse, TC wastegate regulating valveNo fault found

Model: S6 2,2)Enginemanagementtype5-digit00000Fault locationNo fault found00281 / Vehicle speed sensor (VSS) I Wiring, speedometer, VSS0051 8Engine speed (RPM) sensorCrankshaft position (CKP) sensorCamshaft position (CMP) sensorClosed throttle position (CTP) switchI Throttle position (TP) sensorManifold absolute pressure (MAP) sensorProbable cause-Air gap, metal particles, insecure sensor,flywheel ring gear damaged, wiring,CKPIRPM sensor multi-plugs interchanged,RPM sensorAir gap, metal particles, insecure sensor,flywheel pin bentlmissing, wiring,CKPIRPM sensor multi-plugs interchanged,CKP sensorValve timing, distributor alignment, wiring,CMP sensor, CKP sensor flywheel pin bentlmissing, CMP sensorAccelerator cable adjustment, CTP switchadjustment, throttle valve tightlsticking, wiring,CTP switchI Wiring, poor connection, TP sensorHose leaklblockage, hose fluid collector full,TC wastegate regulating valve, MAP sensor(in ECM)00522 1 Engine coolant temperature (ECT) sensor 1 Wiring, poor connection, ECT sensor00523 1 Intake air temperature (IAT) sensor I Wiring, poor connection, IAT sensor0052400525Knock sensor (KS) 1Heated oxygen sensor (H02S)00528 I Barometric pressure (BARO) sensor I Wiring, BAR0 sensor00532005330054000543Engine control module (ECM) - supply voltageIdle speed control (ISC)Heated oxygen sensor (H02S) - lambda controlKnock sensor (KS) 2Maximum engine RPM exceededMaximum boost pressure exceededECMlTCM electrical connectionIWiring, KS looseldefective, ECMlntakelexhaust leak, wiring, H02S, heatinginoperative, fuel level low, misfireAlternator, battery, current draw with ignition OFF,wiringIntake leaklblockage, wiring, IAC valve,MAF sensor, throttle valve tightlstickingFuel level low, fuel pressurelpump, misfire,intakelexhaust leak, wiring, H02SWiring, KS looseldefective, ECMIncorrect gear shift, AT faultHoses interchangedlnot connected, hosesblockedlleaking, TC wastegate actuatorlregulatingvalve, MAP sensor (in ECM)TCM trouble code(s) stored, wiring,transmission fault00553 I Mass air flow (MAF) sensor I Intake leak, wiring, MAF sensorMixture control (MC)Knock control, cylinder 1 -control limit exceededKnock control, cylinder 2 -control limit exceededKnock control, cylinder 3 -control limit exceededIFuel pressurelpump, misfire, intakelexhaust leak,MAF sensorPoor quality fuel, CKPIRPM sensor wiring,insecure engine component, KS shield wiringPoor quality fuel, CKPIRPM sensor wiring,insecure engine component, KS shield wiringPoor quality fuel, CKPIRPM sensor wiring,insecure engine component, KS shield wiring

Engine managementtype5-digitFault locationProbable causeKnock control, cylinder 4 - control limit exceededKnock control, cylinder 5 - control limit exceeded01247 1 Evaporative emission (EVAP) canister purge valve 1 Wiring, fuse, EVAP canister purge valve01 249 I Injector 1 I Wiring, fuse, injector01 250Injector 201251 I Injector 3 I Wiring, fuse, injector01 252 I Injector 4 I Wiring, fuse, injector01253 1 Injector 5 I Wiring, fuse, injector01257 / Idle air control (IAC) valve I Wiring, fuse, IAC valvePoor quality fuel, CKPIRPM sensor wiring,insecure engine component, KS shield wiringPoor quality fuel, CKPIRPM sensor wiring,insecure engine component, KS shield wiringWiring, fuse, injector01 262 I Turbocharger (TC) wastegate regulating valve I Wiring, fuse, TC wastegate regulating valve17978Engine control module (ECM) - immobilizer activelncorrectldamaged key, incorrectly coded,ECMlimmobilizer replacement without coding,wiring, immobilizer defective--a

TransmissionModel: A3 80 A4 1001A6 A6IAllroad A8Coupe CabrioletYear: 1991-02A3 - centre console80, Coup&, Cabriolet - in underbonnet fuseboxlreiay plateA4 +2000 - centre console, rear1001A6 -1997 - in underbonnet relay plateA4 2000 -+, AWAllroad 1997 + - fascia, driver's sideA8 - under front ashtray

Model: A3 80 A4 100lA6 A61Allroad A8 CoupeCabrioletTransmissionI4motion - manual 516 speed 4WDNOTE: Vehicle equipped with an electronically controlled Haldexcoupling.General informationn Refer to the front of this manual for general test conditions,terminology, detailed descriptions of wiring faults and ageneral trouble shooter for electrical and mechanical faults.Accessing and erasingThe four wheel drive control module fault memory can onlybe accessed and erased using diagnostic equipmentconnected to the data link connector (DLC).Trouble code identificationII probable causeVAG type Fault locationII00000 ( No fault found-00453 Haldex coupling - overheatingMechanical fault00526 Stop lamp switchWiring, stop lamp switch00532 Four wheel drive controlAlternator, battery, wiringmodule - supply voltage01043 Four wheel drive control module - programming Incorrect four wheel drive control module01155 I Haldex coupling - mechanical fault I Mechanical fault01312 1 CAN data bus - defective I Trouble code(s) stored in other system(s), wiring0131401316CAN data bus, ECMCAN data bus, ABSWiring, ECM trouble code(s) stored, ECM incorrectly coded,wiringABS control module trouble code(s) stored, wiring65535 I Four wheel drive control module - defective I Four wheel drive control moduleAutomaticKiptronicGeneral information0 Refer to the front of this manual for general test conditions,terminology, detailed descriptions of wiring faults and ageneral trouble shooter for electrical and mechanical faults.Automatic transmission in 'P'.0 Data link connector (DLC) - 2-pin: (A) black,(B) brownlwhite.Accessing and erasingThe transmission control module (TCM) fault memory canonly be accessed and erased using diagnostic equipmentconnected to the data link connector (DLC).

ITransmissionModel: A3 80 A4 1001A6 A6IAllroad A8 CoupeCabrioletTrouble code identificationVAG type Fault location Probable causePO---Refer to EOBD trouble code tableNo fault foundSolenoid valve 1Solenoid valve 2- / Solenoid valve 3- I Transmission----Solenoid valve 4Solenoid valve 5Solenoid valve 6Solenoid valve 7--Wiring, poor connection, transmission internalwiring, solenoid valveWiring, poor connection, transmission internalwiring, solenoid valveWiring, poor connection, transmission internalwiring, solenoid valverwirin;- -hydraulic fault, clutchlvalve bodyWiring, poor connection, transmission internalwiring, solenoid valveWiring, poor connection, transmission internalwiring, solenoid valve- I Vehicle speed sensor (VSS) I Wiring, speedometer, insecure rotor, VSS------ABS control module, LH front wheelspeed signal - rangelperformanceproblemABS control module, RH front wheelspeed signal - rangelperformanceproblemABS control module, RH rear wheelspeed signal - rangelperformanceproblemABS control module, LH rear wheelspeed signal - rangelperformanceproblemTransmission range (TR) switchTransmission kick-down switchoutput shift speed (OSS) sensor -no signalWiring, poor connection, transmission internalwiring, solenoid valveWiring, poor connection, transmission internalwiring, solenoid valveWiring, ABS trouble code(s) stored, incorrect ABScontrol moduleWiring, ABS trouble code(s) stored, incorrect ABScontrol moduleWiring, ABS trouble code(s) stored, incorrect ABScontrol moduleWiring, ABS trouble code(s) stored, incorrect ABScontrol moduleWiring, poor connection, TR switchWiring, accelerator cable adjustment, transmissionkick-down switch, TP sensorWiring, transmission speed sensor, multi-plugs forVSS and transmission speed sensor interchanged- I Transmission mode selection switch I Wiring, transmission mode selection switch- Transmission fluid temperature (TFT) Wiring, poor connection, TFT sensorsensor--Solenoid valve 8Solenoid valve 9- / Solenoid valve 10~arthreturn wire, modulation valveWiring, poor connection, transmission internalwiring, solenoid valveWiring, poor connection, transmission internalwiring, solenoid valveWiring, poor connection, transmission internalwiring, solenoid valve[ Wiring open circuit, TCM- Transmission intermediate shaft speed Wiring open circuit, transmission intermediate shaftsensor - no signalspeed sensor-

Model: A3 80 A4 1001A6 A6IAllroad A8 CoupeCabrioletTransmissionVAG type I P type I Fault location I Probable causeI00518 - I Throttle position (TP) sensor I Wiring, signal from TP sensor or ECM, TP sensor00526 1 - I Stop lamp switch I Wiring, stop lamp switch1 I00529 - I Engine RPM input - no signal 1 Wiring, ECM0053200543005450054800549005960059700638006410065200660006680075300777----1 ----I ------Transmission control module (TCM) - Alternator, battery, wiringsupply voltageMaximum engine RPM exceeded Incorrect gear shift, CKPIRPM sensor, valve body,ECMECM/TCM electricalWiring, ECM, TCMconnection - torque reduction signalTransmission control module (TCM), fault Fuse, supply voltage wiring, earth wiringmemory - supply voltage, from batteryECM/TCM electrical connection - I Wiring, ECM, TCMfuel consumption signalSolenoid valves - short circuitPoor connection, transmission internal wiringABS control module, wheel speed Wiring, ABS trouble code(s) stored, incorrect ABSsignals - speed difference too great control moduleECM/TCM electrical connection - Wiring, ECM, TCMTP sensor signalTransmission fluid temperature (TFT) ATF level incorrect, towing weight limit exceeded,sensor - high inputtransmission internal wiring, TFT sensorGear monitoring - implausible signal Wiring, hydraulic fault, clutchlvalve bodyTransmission kick-down switchlthrottleposition (TP) sensor - implausiblesignalTransmission control module (TCM) -supply voltage, from batteryABS control module, wheel speedsignals - implausibleCAN data bus, APP sensor - incorrectsignal00789 1 - I Reverse gear position switch I Wiring, reverse gear position switch, TR switch01 045011660119201196----Transmission control module (TCM) -codingTiptronic gear selection switch -incorrect signalEngine torque signalWiring, accelerator cable adjustment, kick-downswitch, TP sensorWiring, fuseWiring, ABS trouble code@) stored, incorrect ABScontrol moduleWiring, APP sensor signal from ECM, ECM troublecode(s) storedIncorrectly coded01236 1 - I Selector lever lock solenoid I Wiring, selector lever lock solenoid- -013120131401316---Torque converter clutch (TCC) solenoid -mechanical faultCAN data bus, ECM/TCMCAN d& bus-- defectiveCAN data bus, ECM- I CAN data bus. ABS-Wiring, tiptronic gear selection switchTrouble codes 01312101314 stored, ECM incorrectlycoded, faulty enginelcomponent(s), ECMATF level, clutch slipping, TCC solenoid, valve bodydefectiveIgnition switched ON with TCM disconnected,wiring, ECM, TCMTrouble code(s) stored in other system@), wiringWiring, ECM trouble code(s) stored, ECM incorrectlycoded, wiringABS control module trouble code@) stored, wiring

II "/ -AUDIModel: A3 80 A4 100lA6 A61Allroad A8 CoupeCabrioletI TransmissionIVAG type Fault location I Probable causeStop lamp switch - rangelperformanceproblemTransmission control module (TCM) -KAM errorTransmission control module (TCM) -ROM errorTransmission control module (TCM) -defectiveWiring, stop lamp switchTCMStop lamp switch - circuit malfunction I Wiring, stop lamp switch, ECM, TCMTransmission range (TR) switch -rangelperformance problemTransmission fluid temperature (TFT)sensor - circuit malfunctionTransmission fluid temperature (TFT)sensor - rangelperformance problemTransmission fluid temperature (TFT)sensor - low inputTransmission fluid temperature (TFT)sensor - high inputlnput shaft speed (ISS) sensorlturbineshaft speed (TSS) sensor - range1performance problemlnput shaft speed (ISS) sensorlturbineshaft speed (TSS) sensor - no signalOutput shaft speed (OSS)sensor - rangelperformance problemOutput shaft speed (OSS) sensor -no signalEngine RPM input - rangelperformanceproblemIncorrect gear ratioGear 1 - incorrect ratioGear 2 - incorrect ratioGear 3 - incorrect ratioGear 4 - incorrect ratioTCMTCMWiring, TR switchWiring, TFT sensorWiring, TFT sensorWiring, TFT sensorWiring, TFT sensorWiring, shield wiring, transmission input shaft speedsensor, engine RPM signal, TR switch, ATF level,torque converter, clutches or brakes slipping,sticking solenoid valveWiring, shield wiring, transmission input shaft speedsensor, engine RPM signal, TR switch, ATF level,transmission speed sensor, torque converter,clutches or brakes slipping, sticking solenoid valveWiring, shield wiring, OSS sensor, ECM/TCM inputsignals incorrectly transmitted, ATF level, torqueconverter, clutches or brakes slipping, stickingsolenoid valveWiring, shield wiring, ECM/TCM input signalsincorrectly transmitted, OSS sensor, ATF level,torque converter, clutches or brakes slipping,sticking solenoid valveWiring, CKPIRPM sensor, ECM, TCMATF level, torque converter, clutches or brakesslipping, sticking solenoid valve, wiring,transmission speed sensor, transmission input shaftspeed sensor, TCMClutch slipping, solenoid valve, transmission speedsensor, transmission input shaft speed sensor, TCMClutch slipping, solenoid valve, transmission speedsensor, transmission input shaft speed sensor, TCMClutch slipping, solenoid valve, transmission speedsensor, transmission input shaft speed sensor, TCMClutch slipping, solenoid valve, transmission speedsensor, transmission input shaft speed sensor, TCM

Model: A3 80 A4 1001A6 A6IAllroad A8 CoupeCabrioletTransmission 7VAG type / P type ( huit location I Probable cause17119171251713517136171371714017141171421714517146----------Gear 5 - incorrect ratioTorque converter clutch (TCC)solenoid - performance or stuck offShift solenoid (SS) A - performance orstuck offShift solenoid (SS) A - stuck onShift solenoid (SS) A - electricalShift solenoid (SS) B - performance orstuck offShift solenoid (SS) 0 - stuck onShift solenoid (SS) B - electricalShift solenoid (SS) C - performance orstuck offShift solenoid (SS) C - stuck onClutch slipping, solenoid valve, transmission speedsensor, transmission input shaft speed sensor, TCMATF level, torque converter, wiring, TCC solenoid,torque converter pressure valveWiring open circuitlshort to earth, poor connection,shift solenoidWiring, poor connection, shift solenoidWiring, poor connection, solenoid valveWiring open circuitlshort to earth, poor connection,shift solenoidWiring, poor connection, shift solenoidWiring, poor connection, solenoid valveWiring open circuitlshort to earth, poor connection,shift solenoidWiring, poor connection, shift solenoid17147 1 - I Shift solenoid (SS) C - electrical I Wiring, poor connection, solenoid valve---17968-18112181 41181471815218153-181551815618157181581815918160POPI560PI625PI704PI733PI 739PI744PI745PI 746PI 747PI748PI 749PI 750PI 751PI752Refer to EOBD trouble code tableMaximum engine RPM exceededCAN data bus, ECMITCMTransmission kick-down switch - shortto earthTiptronic gear selection switch, downshift - short to earthTiptronic gear selection switch, up shift -short to earthTiptronic gear selection switch,recognition - short to earthSolenoid valves, supply voltage - shortto positiveTransmission control module (TCM) -supply voltaqeSolenoid valves, supply voltage - opencircuitlshort to earthTransmission control module (TCM) -defectiveTransmission control module (TCM) -codingTransmission control module (TCM) -supply voltage lowTransmission control module (TCM) -supply voltage highTransmission control module (TCM) -supply voltage- - - - --Incorrect gear shift, wiring open circuit,CKPlRPM sensorIgnition switched ON with TCM disconnected,wiring, ECM, TCMWiring open circuitlshort to earth, transmissionkick-down switchWiring short to earth, tiptronic gear selection switchWiring short to earth, tiptronic gear selection switchWiring short to earth, tiptronic gear selection switchWiring open circuitlshort to positive,poor connection, TCMAlternator, battery, wiringBattery, wiring open circuitlshort to earth,poor connection, TCMTCMIncorrectly coded, ECM incorrectly coded, TCMFuse, wiring, TCMAlternator, second battery incorrectly connectedWiring, alternator1 - I PI760 I Selector lever lock solenoid I Wiring, selector lever lock solenoid

I TransmissionModel: A3 80 A4 1001A6 A61Allroad A8 CoupeCabrioletVAGtypePtypeFault locationProbable cause18169181 7018171-1817918180--18192I81 93PI761PI 762ECM/TCM electrical connection, torque Wiring short to positive, ECM, TCMI reduction signal - short to positive11IPI763PI767PI771PI772PI781Selector lever lock solenoid -short to earthSelector lever lock solenoid -short to positiveSelector lever lock solenoid -open circuitECM/TCM electrical connection -TP sensor s~gnalEngine control module (ECM), loads~gnal - open circuitkhort to positiveEngine control module (ECM), loadsignal - short to earthECM/TCM electrical connection, torquereduction signal - open c~rcuit/short toEngine control module (ECM), upldownshift signal - open circuitkhort to earthEngine control module (ECM), upldownshift signal - short to positiveWiring short to earth, selector lever lock solenoid,tiptronic gear selection switch, TCMWiring short to positive, selector lever lock solenoid,tiptronic gear selection switch, TCMWiring open circuit, selector lever lock solenoid,TCMWiring, ECM, TCMWiring open circuiffshort to earth, ECMWiring open circuiffshort to positive, ECM18108 I - I Brake pressure switch - incorrect signal I Wiring, brake pressure switch-1822218223-1822718228-1823218233-1823718238182421PI814PI815PI818PI819PI 820PI823PI 824PI825PI828PI829PI830earthSolenoid valve 4Pressure control (PC) solenoid 1 -open circuitlshort to earthPressure control (PC) solenoid 1 -short to positiveSolenoid valve 5Pressure control (PC) solenoid 2 -open circuitkhort to earthPressure control (PC) solenoid 2 -short to positiveSotenoid valve 6Pressure control (PC) solenoid 3 -open circuitkhort to earthPressure control (PC) solenoid 4 -open circuitkhort to earthPressure control (PC) solenoid 4 -short to positivePressure control (PC) solenoid 5 -open circuitkhort to earthWiring open circuiffshort to positive, ECMWiring short to earth, ECMWiring open circuiffshort to earth, ECM, TCMWiring, poor connection, transmission internalwiring, solenoid valveWiring open circuiffshort to earth, PC solenoidWiring short to positive, PC solenoidWiring, poor connection, transmission internalwiring, solenoid valveWiring open circuiffshort to earth, PC solenoidWiring short to positive, PC solenoidWiring, poor connection, transmission internalwiring, solenoid valveWiring open circuiffshort to earth, PC solenoidPressure control (PC) solenoid 3 - I Wiring short to positive, PC solenoidshort to positiveSolenoid valve 7Wiring, poor connection, transmission internalwiring, solenoid valveWiring open circuiffshort to earth, PC solenoidWiring short to positive, PC solenoidWiring open circuitlshort to earth, PC solenoid

Model: A3 80 A4 100lA6 AGIAllroad A8 CoupeCabrioletTransmission 718243182581825818262182631826418265I8266I826965535type I P type Fault locatlon Probable causeIIPI850PI851PI854PI 855PI856PI 857Pressure control (PC) solenoid 5 -short to positiveEngine control module (ECM)ltransmissioncontrol module (TCM) - incorrectlymatchedCAN data bus, ECM - missinginformationCAN data bus, ABS - missinginformationCAN data bus - defectiveCAN data bus - softwareEngine control module (ECM) -TP sensor signalEngine control module (ECM) -load s~gnalEngine control module (ECM) -RPM signalEngine control module (ECM) -APP sensor signal1I I IdefectiveWiring short to positive, PC solenoidIncorrect ECMlTCMIgnition switched ON with TCM disconnected,wiring, TCMIgnition switched ON with TCM disconnected,wiring, TCM, ABS control module, ECMWiring, ECM, TCMIgnition switched ON with TCM disconnected, ECM,TCMWiring, ECM, TCMECM, TCMWiring, CKPIRPM sensor, ECM, TCMI Wiring, APP sensor, ECM, TCM- I Transmission control module (TCM) - 1 Mechanicallhydraulic fault, electricallelectronicI component, wiring, TCM

P*- AUDII ImmobilizerModel: A2 A31S3 80 (081944) A4lS4A61S6 (07194 4 ) A6IS6IAllroad A81S8CoupelS2 (071944) Cabriolet (071944) TTYear: 1994-02A2, A41S4 2000 +, AG/SG/Allroad 1997 + - fascia, driver's slde A4/S4 1994-00 - centre console, rearIASIS3 - centre consoleA61S6 1994-97 - in underbonnet relay plate80, Coupe, Cabriolet, S2 - in underbonnet fuseboxlrelay plate A81S8 - under front ashtray