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Trouble Godes - diagramas.diagram...

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VAUXHAf&oPEL Model:<br />

<strong>Trouble</strong> code identification<br />

Astra-F 1,812,O 16V VectralCavalier 2,O 16V Omega-B 2,O 16V<br />

Calibra 2,O 16V<br />

Erasing<br />

Flash type Fault location<br />

12<br />

I Start and end of diaanosis<br />

I<br />

14<br />

15<br />

NOTE: Some models 1992- may require diagnostic equipment<br />

to erase trouble codes.<br />

Switch ignition OFF.<br />

Disconnect battery earth lead for 60 seconds.<br />

WARNING: Disconnecting battery may erase memory from<br />

electronic units (e.g. radio, clock).<br />

Repeat checking procedure to ensure no data remains in<br />

ECM fault memory.<br />

Probable cause<br />

Heated oxygen sensor (H02S)loxygen sensor (025) -<br />

open circuit<br />

Wiring, H02S102S, ECM<br />

Engine coolant temperature (ECT) sensor - voltage low Wiring short to earth, ECT sensor, ECM<br />

Engine coolant temperature (ECT) sensor - voltage high Wiring short to positive, ECT sensor, ECM<br />

16 I Knock sensor (KS) 1 - signal I Wiring, KS<br />

19 Engine speed (RPM) sensor - incorrect signal<br />

Wiring, RPM sensor, reluctor ring, ECM<br />

21<br />

22<br />

23<br />

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

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

Knock sensor (KS) - KS control<br />

Wiring short to positive, TP sensor, ECM<br />

Wiring short to earth, TP sensor, ECM<br />

ECM<br />

24 I Vehicle speed sensor (VSS) - no signal 1 Wiring, VSS, ECM<br />

25<br />

26<br />

I Jnjector 1 - vottage high<br />

I Injector 2 - voltage high<br />

27<br />

28<br />

Injector 3 - voltage high<br />

Injector 4 - voltage high<br />

33 Exhaust gas recircutation (EGR) solenoid - voltage low<br />

34 Exhaust gas recirculation (EGR) solenoid -voltage high<br />

37 Engine control module (ECM) - MIL control<br />

-<br />

Wiring short to positive, injector, ECM<br />

Wiring short to positive, injector, ECM<br />

Wiring short to positive, injector, ECM<br />

Wiring short to positive, injector, ECM<br />

Wiring open circuitlshort to earth, EGR solenoid<br />

Wiring short to positive, EGR solenoid<br />

Wiring open circuitlshort to earth, ECM

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