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Trouble Godes - diagramas.diagram...

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BMW Model: 3 SerieslCompact (E36) 3 Series (E46) 520i (E34)<br />

5 Series (E39) 7 Series (E38) 23<br />

I Engine management I<br />

Scanner Fault location<br />

type<br />

45<br />

Steering wheel multifunction switch -<br />

incorrect signal<br />

46 I Fuel level signal<br />

49 I Battery voltage - too low<br />

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

MS42: Evaporative emission (EVAP) canister<br />

purge valve - malfunction<br />

51 MS41: Evaporative emission (EVAP) canister<br />

purge valve - malfunction<br />

Evaporative emission (EVAP) canister purge<br />

valve - malfunction<br />

Probable cause<br />

Wiring, spiral cable, steering wheel multifunction switch,<br />

ECM<br />

Fuel level low, wiring, fuel gauge tank sensor<br />

Wiring, alternator, battery<br />

Wiring, injector<br />

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

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

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

52 1 Fuel pump relay - malfunction Wiring, connector(s), fuel pump relay<br />

55<br />

MS42: Exhaust gas control solenoid - Wiring, connector, exhaust gas control solenoid<br />

malfunction<br />

MS41: Exhaust gas control solenoid - Wiring, connector, exhaust gas control solenoid<br />

malfunction<br />

( Oxygen sensor heater - circuit malfunction Wiring, connector, H02S<br />

MS42: Idle air control (IAC) valve - circuit<br />

malfunction<br />

Wiring, connector, IAC valve<br />

--<br />

Wiring, connector(~), l~~?&.tuatorll~~ valve, ECM<br />

MS41: Idle speed control (ISC) actuatortidle air<br />

control (IAC) valve - malfunction<br />

I Oxygen sensor heater 2 - circuit malfunction Wiring, connector, engine control relay, H02S, ECM<br />

MS42: Oxygen sensor heater 1, bank 2 -<br />

circuit malfunction<br />

Ignition signal resistor - defective<br />

Knock sensor (KS) 1 - defective<br />

Wiring, connector, engine control relay, HOZS, ECM<br />

Wiring, ignition signal resistor<br />

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

59 I Knock sensor (KS) 2 - defective Wiring, connector, KS incorrectly tightened, KS<br />

MS42: Oxygen sensor heater 2, bank 2 -<br />

circuit malfunction<br />

Ignition circuit - secondary circuit<br />

Wiring, connector, engine control relay, H02S, ECM<br />

Wiring, ignition coil(s)<br />

MS42: Secondary air injection (AIR) solenoid - Wiring, connector, AIR solenoid<br />

defective<br />

MS41: Secondary air injection (AIR) solenoid - Wiring, connector, AIR solenoid<br />

defective<br />

I Knock sensor (KS) 2 - defective Wiring, connector, KS incorrectly tightened, KS<br />

64 1 Knock sensor (KS) 1 - defective Wiring, connector, KS incorrectly tightened, KS<br />

Camshaft position (CMP) sensor - circuit<br />

MS42: Camshaft position (CMP) sensor 1 -<br />

circuit malfunction<br />

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

(VAF) sensor - incorrect signal<br />

MS42: Evaporative emission (EVAP) canister<br />

purge valve - electrical fault<br />

Wiring, connector, CMP sensor<br />

Wiring, connector, CMP sensor<br />

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

Wiring, connector, EVAP canister purge valve

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