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Autodata - Diagnostic Trouble Codes Fault locations and probable causes - 2004 edition

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Model: A2 A3lS3 80 1,6/2,012,6/2,8 80 1,9 TDI (07/93-+) A4lS4<br />

1001A6 1,812,012,6/2,8/4,2 A6 2,5 TDI A6lS61Allroad A8IS8<br />

CoupelCabriolet 1,812,012,6/2,8 Cabriolet 1,9 TDI TT<br />

Engine management<br />

VAG type<br />

5-digit<br />

1 EOBD type / <strong>Fault</strong> location<br />

I<br />

17703<br />

17704<br />

17705<br />

17707<br />

17708<br />

17733<br />

17734<br />

17739<br />

17743<br />

17744 El<br />

17745<br />

Pi295<br />

Pi296<br />

Pi297<br />

PI299<br />

Pl 300<br />

P1325<br />

Pl 326<br />

P1331<br />

P1335<br />

PI336<br />

P1337<br />

Turbocharger (TC), bypass - flow<br />

malfunction<br />

Engine cooling system - malfunction<br />

Turbocharger (TC)lthrottle valve, hose<br />

connection - pressure loss<br />

Fuel metering solenoid - circuit<br />

malfunction<br />

R<strong>and</strong>omlmultiple cylinder(s) - misfire<br />

detected<br />

Knock control, cylinder 1 - control limit<br />

reached<br />

Knock control, cylinder 2 - control limit<br />

reached<br />

Knock control, cylinder 3 - control limit<br />

reached<br />

Knock control, cylinder 4 - control limit<br />

reached<br />

Knock control, cylinder 5 - control limit<br />

reached<br />

Knock control, cylinder 6 - control limit<br />

reached<br />

Knock control, cylinder 7 - control limit<br />

reached<br />

Knock control, cylinder 8 - control limit<br />

reached<br />

Engine torque control - limit reached<br />

Engine torque monitoring - control limit<br />

exceeded<br />

Camshaft position (CMP) sensor,<br />

bank 1 - short to earth<br />

Probable cause<br />

TC wastegate regulating valve,<br />

hose connection(s), injector<br />

ECT sensor, coolant thermostat<br />

Hose connection<br />

Wiring, fuel metering solenoid<br />

-- --<br />

Fuel level low, fuel gauge tank sensor<br />

Poor quality fuel, incorrect fuel, insecure engine<br />

component, KS incorrectly tightenedldefective,<br />

shield wiring open circuit, poor connection<br />

Poor quality fuel, incorrect fuel, insecure engine<br />

component, KS incorrectly tightenedldefective,<br />

shield wiring open circuit, poor connection<br />

Poor quality fuel, incorrect fuel, insecure engine<br />

component, KS incorrectly tightenedldefective,<br />

shield wiring open circuit, poor connection<br />

Poor quality fuel, incorrect fuel, insecure engine<br />

component, KS incorrectly tightenedldefective,<br />

shield wiring open circuit, poor connection<br />

Poor quality fuel, incorrect fuel, insecure engine<br />

component, KS incorrectly tightenedldefective,<br />

shield wiring open circuit, poor connection<br />

Poor quality fuel, incorrect fuel, insecure engine<br />

component, KS incorrectly tightenedldefective,<br />

shield wiring open circuit, poor connection<br />

Poor quality fuel, incorrect fuel, insecure engine<br />

component, KS incorrectly tightenedldefective,<br />

shield wiring open circuit, poor connection<br />

Poor quality fuel, incorrect fuel, insecure engine<br />

component, KS incorrectly tightenedldefective,<br />

shield wiring open circuit, poor connection<br />

Throttle control unit, hose(s), TC system,<br />

MAP sensor, IAT sensor, MAF sensor, ECT sensor<br />

Hose(s), TC system, throttle control unit,<br />

IAT sensor, MAP sensor, MAF sensor,<br />

ECT sensor, APP sensor<br />

Wiring short to earth, CMP sensor<br />

17746<br />

I<br />

Camshaft position (CMP) sensor, I Wiring open circuiffshort to positive, CMP sensor<br />

bank 1 - open circuitkhort to positive<br />

Crankshaft position (CKP) sensorlengine<br />

speed (RPM) sensor - interchanged<br />

Camshaft position (CMP) sensor I1 Valve timing, CKPICMP sensor installation,<br />

bank llcrankshaft position (CKP) sensor -<br />

out of sequence<br />

17749 Ignition amplifier, primary circuit 1 - short to Wiring short to earth, ignition amplifier,<br />

1 earth I CMP sensor, HT leads, spark plugs

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