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

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Model: A2 A3lS3 80 1,6/2,012,612,8 80 1,9 TDI (07193 +) A464<br />

1001A6 1,812,012,612,814,2 A6 2,5 TDI A6IS6lAllroad A8lS8<br />

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

VAG type<br />

5-digit<br />

I EOBD type I <strong>Fault</strong> location Probable cause<br />

17525 Pl117<br />

17526<br />

17527<br />

17528<br />

17529<br />

17530<br />

I P1122<br />

17535<br />

17536<br />

17537<br />

17538<br />

17539<br />

17540<br />

17541<br />

17544<br />

17545<br />

17546<br />

17547<br />

17548<br />

I<br />

I<br />

Pill9<br />

P1120<br />

Pi121<br />

P1127<br />

I P1128<br />

P1129<br />

Pi130<br />

PI131<br />

Pi132<br />

P1133<br />

Pi136<br />

Pi137<br />

P1138<br />

Pi139<br />

I P1140<br />

Heated oxygen sensor (H02S) 2,<br />

bank 1 - heater short to earth<br />

Heated oxygen sensor (H02S) 2, / Wiring open circuit, H02S<br />

bank 1 - heater open circuit<br />

Heated oxygen sensor (H02S) 1,<br />

bank 2 - heater short to earth<br />

Heated oxygen sensor (H02S) 1,<br />

bank 2 - heater open circuit<br />

Heated oxygen sensor (H02S) 2,<br />

bank 2 - heater short to earth<br />

Heated oxygen sensor (H02S) 2,<br />

bank 2 - heater open circuit<br />

Long term fuel trim, entire speednoad range,<br />

bank 1 - system too rich<br />

Wiring short to earth, H02S<br />

Wiring short to earth, H02S<br />

Wiring open circuit, H02S<br />

Wiring short to earth, H02S<br />

I Wiring open circuit, HO2S<br />

Excessive fuel in engine oil, fuel pressure, EVAP<br />

canister purge valve, injector@)<br />

Long term fuel trim, entire speedlload range, Fuel pressurelpump, injector(s), intakelexhaust<br />

bank 1 - system too lean<br />

leak, AIR system, hose leak<br />

Long term fuel trim, entire speedlload range, Excessive fuel in engine oil, fuel pressure, EVAP<br />

bank 2 - system too rich<br />

canister purge valve, injector@)<br />

Long term fuel trim, entire speednoad range, Fuel pressurelpump, injector(s), intakelexhaust<br />

bank 2 - system too lean<br />

leak, AIR system, hose leak<br />

Heated oxygen sensor (H02S) 1,<br />

Wiring, H02S<br />

bank 1 - heater resistance too high<br />

Heated oxygen sensor (H02S) 1,<br />

Wiring short to positive, H02S<br />

bank 1 & 2 - heater control - circuit high<br />

Heated oxygen sensor (H02S) 1,<br />

Wiring open circuiffshort to earth, H02S<br />

bank 1 & 2 - heater control - circuit low<br />

Long term fuel trim, idling, bank 1 - system Fuel pressurelpump, injector@), intakelexhaust<br />

too lean<br />

leak, AIR system, hose leak<br />

Long term fuel trim, idling, bank 1 - system Fuel pressure, injector(s), EVAP canister purge<br />

too rich<br />

valve<br />

Long term fuel trim, idling, bank 2 - system Fuel pressurelpump, injector@), intakelexhaust<br />

too lean<br />

leak, AIR system, hose leak<br />

Long term fuel trim, idling, bank 2 - system Fuel pressure, injector(s), EVAP canister purge<br />

too rich<br />

valve<br />

Heated oxygen sensor (H02S) 2,<br />

I Wiring, HO2S<br />

bank 2 - heater resistance too high<br />

17549 1P1141 I Load calculation - implausible value I Wiring, MAP sensor, MAF sensor<br />

17551 El<br />

17552<br />

17553<br />

17554<br />

Pi143<br />

P1144<br />

Pi145<br />

Pi146<br />

Load calculation - too low<br />

Load calculation - too high<br />

Mass air flow (MAF) sensor, bank 1 - open<br />

circuit/short to earth<br />

Mass air flow (MAF) sensor, bank 1 - short<br />

to positive<br />

Mass air flow (MAF) sensor,<br />

bank 1 - supply voltage<br />

Throttle control unit, MAP sensor, MAF sensor,<br />

APP sensor<br />

Throttle control unit, MAP sensor, MAF sensor,<br />

APP sensor<br />

Wiring open circuiffshort to earth, MAF sensor<br />

Wiring short to positive, MAF sensor<br />

Operating voltage too highllow, wiring

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