Pre-1996 trouble code lookup: meanings, causes, and fixes. No scanner needed.
Site Map
Every code on this site, grouped by make and system.
GM (68)
Powertrain - Computer and Auxiliary Controls
12
16
26
27
29
46
47
51
52
53
55
56
61
66
67
68
69
70
71
73
85
86
87
98
99
Powertrain - Fuel/Air Metering
13
14
15
21
22
23
25
33
34
35
36
44
45
54
57
63
64
65
Powertrain - Ignition
17
19
41
42
43
48
82
Powertrain - Transmission
24
28
31
37
38
39
58
59
72
79
80
90
93
96
Powertrain - Auxiliary Emissions Controls
32
75
76
77