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

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Model: A2 A363 80 1,6/2,012,6/2,8 80 1,9 TDI (07193 +) A41S4<br />

1001A6 1,812,012,612,8/4,2 A6 2,s TDI A6lS61Allroad A81S8<br />

CoupelCabriolet 1,812,012,612,8 Cabriolet 1,9 TDI TT<br />

Engine management<br />

VAG type<br />

5-digit<br />

17555<br />

17556<br />

17557<br />

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

I<br />

Pi147<br />

Pi148<br />

Pi149<br />

Probable<br />

cause<br />

17558 Heated oxygen sensor (H02S) 1, I Exhaust leak, wiring, H02S<br />

bank 2 - implausible lambda control value<br />

17559<br />

17560<br />

17561<br />

17563<br />

17564<br />

17565<br />

17566<br />

Pl151<br />

Pll 52<br />

Pi153<br />

Pll 55<br />

Pi156<br />

Pi157<br />

Pi158<br />

17567<br />

17568<br />

I P1159<br />

I P1160<br />

17569 Pi161<br />

17570<br />

17571<br />

17572<br />

17573<br />

17574<br />

17575<br />

17576<br />

17577<br />

Pi162<br />

Pi163<br />

Pi164<br />

Pi165<br />

P1166<br />

P1167<br />

Pi168<br />

Pi169<br />

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

bank 2 - lambda regulation, system too<br />

lean<br />

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

bank 2 - lambda regulation, system too<br />

rich<br />

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

bank 1 - implausible lambda control value<br />

Long term fuel trim 1, bank 1 - below lean<br />

limit<br />

Long term fuel trim 2, bank 1 - below lean<br />

limit<br />

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

H02S 2 on bank 1 8 2 incorrectly installed<br />

bank 1 & 2 - interchanged<br />

Manifold absolute pressure (MAP)<br />

Wiring short to positive, MAP sensor<br />

sensor - short to positive<br />

Manifold absolute pressure (MAP)<br />

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

sensor - open circuiffshort to earth<br />

Manifold absolute pressure (MAP)<br />

Wiring, MAP sensor<br />

sensor - supply voltage<br />

Manifold absolute pressure (MAP)<br />

Wiring, hose connection(s), MAP sensor<br />

sensor - rangelperformance problem<br />

Mass air flow (MAF) sensor, bank 1 & 2 - EGR system, intake leak, wiring, MAF sensor 112<br />

implausible ratio<br />

lntake air temperature (IAT) sensor - short<br />

to earth<br />

Intake air temperature (IAT) sensor - open<br />

circuiffshort to positive<br />

Fuel temperature sensor - short to earth<br />

Fuel temperature sensor - open circuiff<br />

short to positive<br />

Fuel temperature sensor - range1<br />

performance problem<br />

Long term fuel trim 1, bank 1 - above rich<br />

limit<br />

Long term fuel trim 2, bank 1 - above rich<br />

limit<br />

Mass air flow (MAF) sensor, bank 2 -<br />

rangelperformance problem<br />

Mass air flow (MAF) sensor, bank 2 - low<br />

input<br />

Mass air flow (MAF) sensor, bank 2 - high<br />

input<br />

Intake leak, wiring, H02S<br />

Exhaust leak, wiring, H02S<br />

Exhaust leak, wiring, H02S<br />

Fuel pressurelpump, injectors, intakelexhaust<br />

leak, H02S<br />

Fuel pressurelpump, injectors, intakelexhaust<br />

leak, AIR system, H02S<br />

Wiring short to earth, IAT sensor<br />

Wiring open circuiffshort to positive, IAT sensor<br />

Wiring short to earth, fuel temperature sensor<br />

Wiring open circuitlshort to positive, fuel<br />

temperature sensor<br />

Wiring, fuel temperature sensor<br />

Fuel pressurelpump, injectors, EVAP canister<br />

purge valve, EGR system, H02S, intakelexhaust<br />

system<br />

Fuel pressurelpump, injectors, EVAP canister<br />

purge valve, EGR system, H02S, intakelexhaust<br />

system<br />

Intake leak, wiring, MAF sensor<br />

Intake leak, air filter blocked, wiring short to<br />

earth, fuse, MAF sensor<br />

Wiring short to positive, earth wire defective, MAF<br />

sensor<br />

17578<br />

I<br />

Mass air flow (MAF) sensor, bank 2 - Wiring, fuse, engine control relay, injector<br />

supply voltage<br />

/<strong>Autodata</strong>- Engine management 113<br />

110

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