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

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Engine manage=I<br />

9<br />

Heated oxygen sensor (H02S) 1 - rangelperformance<br />

problem<br />

Probable cause<br />

10 I Heated oxygen sensor (H02S) 2 - rangelperformance Wiring, connector, H02S<br />

problem<br />

Oxygen sensor heater 1 - electrical fault<br />

Oxygen sensor heater 2 - electrical fault<br />

Lambda regulation - system too leanlrich<br />

Wiring, connector, H02S<br />

Wiring, connector, H02S, ECM<br />

Wiring, connector, H02S, ECM<br />

Wiring, intakelexhaust leak, MAF sensor,<br />

fuel pressure, injector(s), ECM<br />

14 I Bosch HFM: Injector 1 - circuit malfunction I Wiring, injector, ECM<br />

15<br />

Siemens PMS: Injector 1 & 4 - circuit malfunction<br />

Bosch HFM: Injector 2 - circuit malfunction<br />

I Siemens PMS: lnjector 2 & 3 - circuit malfunction<br />

Wiring, injector, ECM<br />

Wiring, injector, ECM<br />

I Wiring, injector, ECM<br />

16 I Injector 3 - circuit malfunction I Wiring, injector, ECM<br />

17 ( Injector 4 - circuit malfunction I Wiring, injector, ECM<br />

18<br />

Injector 5 - circuit malfunction<br />

19<br />

Injector 6 - circuit malfunction<br />

20 Bosch HFM: Fuel trim (FT), idle speed -<br />

rangelperformance probtem<br />

Siemens PMS: Fuel trim (FT) - rangelperfomance<br />

I problem<br />

21<br />

111: Ignition amplifierlignition coil, cylinder 1 8 4 -<br />

I defective<br />

104: Ignition amplifierlignition coil, cylinder 1 & 6 -<br />

defectwe<br />

22<br />

Bosch HFM: Ignition amplifier llignition coil,<br />

cylinder 1 - defective<br />

- - -<br />

Wiring, injector, ECM<br />

Wiring, injector, ECM<br />

Intakelexhaust teak, injector@), fuel pressure,<br />

H02S, ECM<br />

lntakelexhaust leak, injector@), fuel pressure,<br />

H02S, EVAP system, ECM<br />

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

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

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

Siemens PMS: Ignition amplifierlignition coil,<br />

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

cylinder 2 & 3 - defective<br />

104: Ignition amplifierlignition coil, cylinder 2 & 5 - Wiring, ignition amplifier, ignition coil, ECM<br />

defective<br />

111: Ignition amplifier 2lignition coil, cylinder 2 8 3 - I Wiring, ignition amplifier, ignition coil, ECM<br />

defective<br />

104: Ignition amplifierlignition coil, cylinder 3 8 4 -<br />

defective<br />

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

24 I Crankshaft position (CKP) sensor - malfunction Wiring, air gap, flywheel ring gear damaged,<br />

CKP sensor<br />

25<br />

26<br />

Camshaft position (CMP) sensor - incorrect signal<br />

Engine control module (ECM) coding plug - electrical<br />

fault<br />

Wiring, CMP sensor<br />

Wiring, ECM<br />

27 I Engine control module (ECM), RPM signal - output I Wiring, RPM sensor, ECM<br />

I<br />

28 I ABS control modulelengine control module (ECM) 1 Wiring, VSS, ABS control module trouble code@)<br />

29<br />

communication - signal<br />

Intake manifold heater relav - malfunction<br />

30 I Fuel pump relay - defective I Wiring, fuel pump relay<br />

31<br />

Without cat: CO adjustment resistor - malfunction<br />

stored<br />

Wiring, intake manifold heater relay, ECM<br />

Wiring, CO adjustment resistor, ECM

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