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

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Model: 316ilCompact, 318iliSICoupelCompact, 320i, 3251 (E36) 23 1,8i<br />

518i, 520i, 525iliX (E34) 750i (E32) 850ilCSI (E31)<br />

7<br />

Engine management<br />

Flash type<br />

<strong>Fault</strong> location<br />

Probable cause<br />

1251<br />

1251 8<br />

1252<br />

1252 8<br />

1253<br />

1254<br />

1255<br />

I<br />

Injector(s), group 1 - circuit malfunction<br />

Injector, cyl. 1 - circuit malfunction<br />

Injector(s), group 2 - circuit malfunction<br />

Injector, cyl. 5 - circuit malfunction<br />

Injector, cyl. 3 - circuit malfunction<br />

Injector, cyl. 6 - circuit malfunction<br />

Injector, cyl. 2 - circuit malfunction<br />

1256 I Injector, cyl. 4 - circuit matfunction I Wiring, injector<br />

1261 I Fuel pump relay - malfunction I Wiring, connector(s), fuel pump relay<br />

Idle speed control (ISC) actuatorlidle air control<br />

(IACl valve - malfunction 1<br />

Evaporative emission (EVAP) canister purge<br />

valve - malfunction<br />

I<br />

Wiring, injector(s)<br />

Wiring, injector<br />

Wiring, injector(s)<br />

Wiring, injector<br />

Wiring, injector<br />

Wiring, injector<br />

Wiring, injector<br />

Wiring, connector(s), ISC actuatorllAC valve<br />

( Wiring, connector(s), EVAP canister purge valve<br />

I Wiring short to earthlpositive, MIL<br />

1264 I Oxygen sensor heater relay - malfunction 1 Wiring, connector, oxygen sensor heater relay<br />

I<br />

Malfunction indicator lamp (MIL) -<br />

short to earthlpositive<br />

1268 I Mixture adjustment resistor - signal too lowlhigh I Wiring, mass air flow (MAF) sensor<br />

1271 I Ignition circuit - defective I Wiring, connector, ignition coil, ECM<br />

1271 8 I Ignition circuit, cyl. 1 - defective I Wiring, connector, ignition coil, ECM<br />

1272 I Ignition circuit, cyl. 5 - defective I Wiring, connector, ignition coil, ECM<br />

1273 I Ignition circuit, cyl. 3 - defective I Wiring, connector, ignition coil, ECM<br />

1274 I Ignition circuit, cyl. 6 - defective I Wiring, connector, ignition coil, ECM<br />

1275 I Ignition circuit, cyl. 2 - defective 1 Wiring, connector, ignition coil, ECM<br />

1276 I Ignition circuit, cyl. 4 - defective I Wiring, connector, ignition coil, ECM<br />

1278 I Transmission control module (TCM) - signal 1 Wiring, TCM<br />

1281 I Battery voltage - too low I Wiring, alternator, battery<br />

1<br />

1<br />

Engine control module (ECM) - internal fault<br />

1283 I Injector(s) - circuit malfunction ( Wiring, injector(s)<br />

Engine control module (ECM)lalarm system control<br />

module communication - alarm system active<br />

1286 I<br />

Disconnect ECM multi-plug for at least 10 min. - check if<br />

trouble code reappears before replacing ECM<br />

Wiring short to positive, alarm system control module<br />

Knock control circuit - defective Wiring, connector, KS incorrectly tightened, knock<br />

sensor (KS), ECM<br />

Engine control module (ECM) - electronic throttle Wiring short to positive, ignore flash code if terminal 62<br />

1 system (ETSI sianal<br />

I not connected<br />

1288 I Engine control module (ECMI - internal fault I ECM<br />

1288 8 Engine control module (ECM) - automatic stability Wiring, ETS, ABS trouble code(s) stored<br />

control (ASR)loverrun torque control defectwe<br />

I<br />

1444 1 No fault found<br />

-<br />

1513 Engine control module (ECM) - unused output Wiring short to earthlpositive, ignore flash code if<br />

I staae<br />

I terminal 18 not connected<br />

2000 I End of trouble code output I -<br />

Engine control module (ECM) - defective Disconnect ECM multi-plug for at least 10 rnin. - check if<br />

2211 1<br />

trouble code reappears before replacing ECM<br />

-a-<br />

Ena~ne rnanaaement 159

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