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 |
79 | Control unit TRACS - malfunction |
81 | Injector 1 - voltage low |
82 | Injector 2 - voltage low |
83 | Injector 3 - voltage low |
84 | Injector 4 - voltage low |
85 | Injector 5 - voltage low |
86 | Injector 6 - voltage low |
87 | A/C cutoff relay voltage low |
88 | A/C cutoff relay voltage high |
89 | Pre heater - voltage low |
91 | Pre heater - voltage high |
92 | Hall sensor - signal faulty |
93 | Hall sensor - voltage low |
94 | Hall sensor - voltage high |
95 | Coold start valve - volatge low |
96 | Coold start valve - volatge high |
97 | Ign/Inj cut off signal - voltage high |
98 | O2 sensor - voltage low |
113 | Turbo control - overboost to high |
114 | Boost idle - abow limit |
115 | Boost full load - below limit |
116 | Boost - abow limit |
117 | “Wastegate“ valve - voltage low |
118 | “Wastegate“ valve - voltage high |
119 | MAP-givare - område/prestanda |
121 | 02 sensor - lean |
122 | 02 sensor - rich |
123 | Air flow control 1 - blocked |
124 | Air flow control 2 - blocked |
125 | MAP - below limit |
126 | MAP - abow limit |
129 | EGR - voltage low |
131 | EGR - voltage high |
132 | EGR - signal faulty |
133 | EGR-system 2 -voltage low |
133 | Air flow control 2 - voltage low |
134 | EGR-system 2 - voltage high |
134 | Air flow control 2 - voltage high |
135 | Check light - voltage high |
136 | Control unit |
137 | Control unit - temperature high |
138 | MAP-sensor - voltage low |
139 | MAP-sensor - voltage high |
143 | Immobiliser - no/signal faulty |
144 | Immobiliser - no signal |
145 | Immobiliser - signal faulty |