Fault codes Opel


Chose connector:

Instructions for cars with 10 pole diagnostic connectors

Read fault codes:

1. Locate the diagnostic socket, fig 1

Fig 1

2. Turn off the ignition

3. Connect pin A and B according to fig 2, below.

Fig. 2

4. Turn on ignition

5. Watch the “check engine“ lamp and count/note the flashes. Every fault code is of two or tree flashes. A short paus between eatch flash and a long paus between eatch fault code.

6. Compare your note of fault codes with the fault code table

Erase fault codes:

1. Turn off ignition.

2. Disconnect the short cut between pin A and B

3. Disconnect the battery ground connection for 60 seconds. OBS!!! Radio and car watch can loose memory when battery is disconnected.

Instructions for cars with 16 pole diagnostic connectors

Read fault codes:

1.Locate the diagnostic socket, fig 1

2. Turn off the ignition

3. Connect pin 6 to ground according to fig 2

4. Turn on ignition

5. Watch the “check engine“ lamp and count/note the flashes. Every fault code is of two or tree flashes. A short pause between each flash and a long pause between each fault code.

6.Compare your note of fault codes with the fault code table

Erase fault codes:

It is not possible to erase fault codes manually. But when the fault is repaired Ecu will turn MIL off and erase fault code after 10-20 starts if all signals are ok.

Fault code table Opel

Fault code

Fault

12

Diagnos Start/Stop

13

O2 sensor - malfunction

14

Coolant temp. voltage low

15

Coolant temp. voltage high

16

Knock signal circuit 1

17

Knock signal circuit 2

18

Knock control module

19

Incorrect rpm signal

21

Throttle position sensor - voltage high

22

Throttle position sensor - voltage low

23

Knock control module

24

Speed sensor (vehicle)

25

Injector 1 - voltage high

26

Injector 2 - voltage high

27

Injector 3 - voltage high

28

Injector 4 - voltage high

29

Fuel pump relay voltage low

31

No engine rpm signal

32

Fuel pump relay voltage high

33

Inlet manifold pressure sensor (MAP) voltage low

34

Inlet manifold pressure sensor (MAP) voltage high

35

Shift valve, idle air

37

MIL-status light - voltage low

38

O2 sensor - voltage low

39

O2 sensor - voltage high

41

Speed sensor - volatage low

42

Feedback ignition pulses

44

O2 sensor - voltage low

45

O2 sensor - voltage high

46

Air pump/relay - voltage low

47

Air pump/relay - voltage high

48

Battery voltage - voltage low

49

Battery voltage - voltage high

51

Control unit faulty (PROM)

52

Check light - voltage high

53

Fuel pump relay - voltage low

54

Fuel pump relay - voltage high

55

Control unit faulty

56

Idle air control - voltage high

57

Idle air control - voltage low

59

Air flow control 1 - voltage high

61

Fuel tank vent. valve - voltage low

62

Fuel tank vent. valve - voltage high

63

Intake manifold valve - voltage high

65

Idle CO pot - voltage low

66

Idle CO pot - voltage high

67

Air flow switch

68

Idle switch - malfunction

69

Intake air temp. - voltage low

71

Intake air temp. - voltage high

72

Air flow switch - malfunction

73

Air flow sensor - voltage low

74

Air flow sensor - voltage high

75

Torque control - voltage low

76

Torque control - shift time too long

79Control unit TRACS - malfunction
81Injector 1 - voltage low
82Injector 2 - voltage low
83Injector 3 - voltage low
84Injector 4 - voltage low
85Injector 5 - voltage low
86Injector 6 - voltage low
87A/C cutoff relay voltage low
88A/C cutoff relay voltage high
89Pre heater - voltage low
91Pre heater - voltage high
92Hall sensor - signal faulty
93Hall sensor - voltage low
94Hall sensor - voltage high
95Coold start valve - volatge low
96Coold start valve - volatge high
97Ign/Inj cut off signal - voltage high
98O2 sensor - voltage low
113Turbo control - overboost to high
114Boost idle - abow limit
115Boost full load - below limit
116Boost - abow limit
117“Wastegate“ valve - voltage low
118“Wastegate“ valve - voltage high
119MAP-givare - område/prestanda
12102 sensor - lean
12202 sensor - rich
123Air flow control 1 - blocked
124Air flow control 2 - blocked
125MAP - below limit
126MAP - abow limit
129EGR - voltage low
131EGR - voltage high
132EGR - signal faulty
133EGR-system 2 -voltage low
133Air flow control 2 - voltage low
134EGR-system 2 - voltage high
134Air flow control 2 - voltage high
135Check light - voltage high
136Control unit
137Control unit - temperature high
138MAP-sensor - voltage low
139MAP-sensor - voltage high
143Immobiliser - no/signal faulty
144Immobiliser - no signal
145Immobiliser - signal faulty