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Trouble Godes

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Flash type I Fault location Probable cause<br />

19 I Keep Alive Memory (KAM) failure I ECM<br />

t I<br />

20 I Separation code<br />

2 1<br />

Ignition signal - erratic<br />

22<br />

Volume air Row (VAF) sensor 1 - voltage high<br />

23<br />

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

voltage high<br />

24 [ Intake air temperature (IAT) sensor I Wiring, IAT sensor, ECM<br />

25<br />

Wiring, TP sensor, ECM<br />

27<br />

Wiring, MAP sensor, ECM<br />

Throttle position (TP) sensor - voltage high<br />

Manifdd absolute pressure (MAP) sensor -<br />

voltape hiqh<br />

28 I Heated oxygen sensor (H02S) - mixture rich I Wiring, fuel supply, injector control, HOZS, ECM<br />

31 I Memory failure I ECM<br />

32<br />

33<br />

Volume air flow (VAF) sensor 1 - voltage low<br />

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

voltaae low<br />

-<br />

Wiring, CKP sensor, alternator<br />

Wiring, VAF sensor, ECM<br />

Wiring, ECT sensor, ECM<br />

Wiring, VAF sensor, ECM<br />

Wiring, ECT sensor, ECM<br />

34 I Intake air temperature (IAT) sensor I Wiring, IAT sensor, ECM<br />

35<br />

Throttle position (TP) sensor - voltage low Wiring, TP sensor, ECM<br />

36<br />

37<br />

Vofume air flow (VAF) sensor 2 - vottage low<br />

Manifold absolute pressure (MAP) sensor -<br />

voltacte low<br />

Wiring, VAF sensor, ECM<br />

Wiring, MAP sensor, ECM<br />

38<br />

Heated oxygen sensor (H02S) - mixture weak Wiring, fuel supply, injector control, H02S, ECM<br />

41<br />

Volume air flow (VAF) sensor I - signal<br />

Wiring, VAF sensor, ECM<br />

42<br />

43<br />

44<br />

Manifold absolute pressure (MAP) sensor - siqnal Wiring, MAP sensor, ECM<br />

( Throttle position (TP) sensor - signal I Wiring, TP sensor, ECM<br />

Blip test (throttle open) not performed -<br />

45<br />

Vehicle speed sensor (VSS)<br />

Wiring, VSS, ECM<br />

46<br />

Idle air control (IAC) valve - maximum engine<br />

spa<br />

Wiring, IAC valve, ECM<br />

47<br />

Idle air control (IAC) valve - minimum engine<br />

speed<br />

Wiring, IAC valve, ECM<br />

48<br />

Idle air control (IAC) valve<br />

Wiring, IAC valve, ECM<br />

49<br />

Exhaust gas recirculation (EGR) valve<br />

Identification code for engine control module<br />

Wiring, restrictedlleaking EGR pipes, EGR valve, ECM<br />

I (ECW I -<br />

51<br />

AC 'ON' during test<br />

-<br />

52<br />

53<br />

54<br />

55<br />

AT in 'D' during test<br />

I Octane plug 1 - short circuit<br />

[ Octane plug 2 - short circuit<br />

I ldte speed adjust - short circuit<br />

-<br />

I -<br />

I -<br />

I<br />

-<br />

56<br />

Knock sensor (KS)<br />

Wiring, fuel quality, ignition timing, KS, ECM<br />

57<br />

Throttle opened too early durinq test -<br />

58 I Phasing of ignition pick-uplspark output signals I Wiring, CKP sensor, ignition control module (ICM), ECM

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