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Trouble Godes - diagramas.diagram...

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I Engine management<br />

Scanner<br />

type<br />

Fault location<br />

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

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

Probable cause<br />

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

28 Heated oxygen sensor (H02S) - circuit I Wiring, connector(s), H02S<br />

malfunction<br />

29 Idle speed control (ISC) actuatorlidle air control Wiring, connector(s), ISC actuatorllAC valve<br />

(IAC) valve - malfunction<br />

3 1 I Injector, cyl. 5 - circuit malfunction 1 Wiring, injector<br />

32 I Injector(s), cyl. 2 & 4 - circuit malfunction I Wiring, injector(s)<br />

32 Injector(s), cyl. 1, 3, 5 & 7, 9, 11 - circuit I Wiring, injector(.)<br />

malfunction<br />

32 I Injector(s), cyl. 1 & 3 - circuit malfunction I Wiring, injector(s)<br />

32 I Injector, cyl. 6 - circuit malfunction I Wiring, injector<br />

33 I Injector, cyl. 4 - circuit malfunction I Wiring, injector<br />

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

valve - malfunction<br />

37 I Battery voltage - too lowlhigh 1 Wiring, alternator, battery<br />

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

41<br />

42<br />

44<br />

45<br />

46<br />

46<br />

48<br />

50<br />

51<br />

51 rn<br />

52<br />

53<br />

54<br />

Engine control module (ECM)IABS control module<br />

communication, acceleration skid control (ASR)<br />

system<br />

Mass air flow (MAF) sensorlvolume air flow (VAF)<br />

sensor - incorrect signal<br />

Knock sensor (KS) 2 - defective<br />

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

Engine coolant temperature (ECT) sensor -<br />

malfunction<br />

AC condenser blower motor relay - short to<br />

positive<br />

Engine control module (ECM) - output stage<br />

AC compressor clutch relay - malfunction<br />

Ignition circuit, cyl. 4 - defective<br />

Transmission control module (TCM) - signal<br />

Ignition circuit, cyl. 6 - defective<br />

Closed throttle position (CTP) switch - malfunction<br />

Wiring, ABS trouble code(s) stored, ECM<br />

Wiring, connector(s), MAF sensorNAF sensor<br />

Wiring, connector, KS incorrectly tightened, KS<br />

Wiring, connector(s), IAT sensor<br />

Wiring, connector(s), ECT sensor<br />

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

Throttle position (TP) sensorlwide open throttle<br />

(WOT) switch - malfunction<br />

Engine control module (ECM)ltransmission control<br />

module (TCM) communication<br />

54 0 I Battery voltage - too lowlhigh I Wiring, alternator, battery<br />

Wiring short to positive, AC condenser blower motor<br />

relay, ECM<br />

Wiring, ECM controlled components<br />

Wiring, AC compressor clutch relay<br />

Wiring, connector, ignition coil, ECM<br />

Wiring, TCM<br />

Wiring, connector, ignition coil, ECM<br />

Wiring, connector, CTP switch, ECM<br />

Wiring, TP sensor, ECM<br />

Wiring short to earth, TCM trouble code(s) stored<br />

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

62<br />

63<br />

Engine control module (ECM) - electronic throttle<br />

system (ETS) signal<br />

Torque converter clutch (TCC) solenoid -<br />

defective<br />

Wiring short to positive, ignore flash code if terminal 62<br />

not connected<br />

Wiring, TCC solenoid<br />

64 Engine control module (ECM)ltransmission control Wiring, TCM trouble code(s) stored, ECM, TCM<br />

module (TCM) communication - short to earth

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