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

VAUXHAf&oPEL
Model:
Astra-F 1,812,O 16V VectralCavalier 2,O 16V Omega-B 2,O 16V
Calibra 2,O 16V
Erasing
NOTE: Some models 1992- may require diagnostic equipment
to erase trouble codes.
Switch ignition OFF.
Disconnect battery earth lead for 60 seconds.
WARNING: Disconnecting battery may erase memory from
electronic units (e.g. radio, clock).
Repeat checking procedure to ensure no data remains in
ECM fault memory.
Trouble code identification
Flash type Fault location
Probable cause
12 I
I Start and end of diaanosis
-
Heated oxygen sensor (H02S)loxygen sensor (025)-
Wiring, H02S102S, ECM
open circuit
14 Engine coolant temperature (ECT) sensor - voltage low Wiring short to earth, ECT sensor, ECM
15 Engine coolant temperature (ECT) sensor - voltage high Wiring short to positive, ECT sensor, ECM
16 I Knock sensor (KS) 1 - signal I Wiring, KS
19 Engine speed (RPM) sensor - incorrect signal
Wiring, RPM sensor, reluctor ring, ECM
21 Throttle position (TP) sensor voltage high
Wiring short to positive, TP sensor, ECM
22 Throttle position (TP) sensor - voltage low
Wiring short to earth, TP sensor, ECM
23 Knock sensor (KS)- KS control
ECM
24 I Vehicle speed sensor (VSS) - no signal 1 Wiring, VSS, ECM
25 I Jnjector 1 - vottage high
Wiring short to positive, injector, ECM
26 I Injector 2 - voltage high
Wiring short to positive, injector, ECM
27 Injector 3 - voltage high
Wiring short to positive, injector, ECM
28 Injector 4 - voltage high
Wiring short to positive, injector, ECM
33 Exhaust gas recircutation (EGR) solenoid - voltage low Wiring open circuitlshort to earth, EGR solenoid
34 Exhaust gas recirculation (EGR) solenoid -voltage high Wiring short to positive, EGR solenoid
37 Engine control module (ECM)- MIL control
Wiring open circuitlshort to earth, ECM