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

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I<br />

Model 80 2,0 16V 100 2,0 1001A6 2,0 16V Coupe 2,0 16V<br />

AUDI<br />

/+-'<br />

$$/<br />

Engine management I<br />

type<br />

5-digit<br />

00000<br />

Fa"# location<br />

No fault found<br />

00281 1 Vehicle speed sensor (VSS) I Wiring, speedometer, VSS<br />

00514<br />

Camshaft position (CMP) sensor, cylinder 4 HT lead<br />

0051 5 I Crankshaft position (CKP) sensor<br />

0051 6 I Closed throttle position (CTP) switch<br />

Probable cause<br />

-<br />

CMP sensor tabs not facing towards distributor,<br />

spark plug(s), HT lead(s), distributor caplrotor,<br />

wiring, CMP sensor<br />

Insecure rotor, wiring, CKP sensor, volume air flow<br />

(VAF) sensor plate tightlsticking<br />

Accelerator cable adjustment, CTP switch<br />

adjustment, throttle valve tightlsticking, wiring,<br />

CTP switch<br />

00517 1 Wide open throttle (WOT) switch I Accelerator cable adjustment, wiring, WOT switch<br />

00520 1 Volume air flow (VAF) sensor I Wiring, VAF sensor<br />

00522 1 Engine coolant temperature (ECT) sensor I Wiring, poor connection, ECT sensor<br />

00524<br />

00525<br />

00533<br />

00535<br />

00537<br />

Knock sensor (KS) 1<br />

Heated oxygen sensor (H02S)<br />

Idle speed control<br />

Knock control - control limit exceeded<br />

Heated oxygen sensor (H02S) - lambda control<br />

00540 1 Knock sensor (KS) 2 I Wiring, KS, ECM<br />

00558 Mixture control (MC) - mixture lean<br />

-<br />

-<br />

Wiring, KS, ECM<br />

Wiring, HOZS, heating inoperative<br />

Ignition timing, EVAP canister purge valve 112,<br />

intake leak, VAF sensor, throttle valve adjustment,<br />

AC signal missing, wiring<br />

Incorrect fuellcompression, ignition timing,<br />

screening of KS wiring, insecure engine component<br />

Mixture adjustment, H02S heaterlwiring, cold start<br />

injector, EVAP canister purge valve, intakelexhaust<br />

leak, ECM earth wire to intake manifold<br />

ECM earth wire to intake manifold, intake leak,<br />

idle speed adjustment<br />

00559<br />

--<br />

[ Mixture control (MC) - mixturerich 1 Injector(s), cold start injector, idle speed adjustment<br />

01257<br />

17978<br />

Mixture control (MC)<br />

Idle air control (IAC) valve<br />

Engine control module (ECM) - immobilizer active<br />

65535 1 Engine control module (ECM) I ECM<br />

ECM earth wire to intake manifold, intake leak,<br />

idle speed adjustment, injector(s), cold start<br />

injector, EVAP canister purge valve<br />

Wiring, IAC valve, ECM<br />

Incorrectldamaged key, incorrectly coded,<br />

ECMlimmobilizer replacement without coding,<br />

wiring, immobilizer defective<br />

/<strong>Autodata</strong> I Engme<br />

management 141

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