Retrieving abs codes – Equus 3123 - GM Code Reader (1982 - 1995) User Manual
Page 37
Retrieving ABS Codes
GM
3-12
3.5.3 Kelsey-Hayes 4WAL System Service Codes
Code
Service Code Definition
12
System Normal
13
System Normal (2WD)
14
System Normal (4WD/AWD)
15
System Normal (4WD/AWD)
21
Right front wheel sensor fault
22
Missing right front wheel sensor signal
23
Erratic right front speed sensor
25
Left front speed sensor fault
26
Missing left front speed signal
27
Erratic left front speed sensor
28
Simultaneous loss of both front sensor signals
29
Simultaneous drop out of all 4 sensors
31
Right rear speed sensor fault
32
Missing right rear speed signal
33
Erratic right rear speed sensor
35
Left rear speed sensor fault or VSS circuit open (1993)
36
Missing left rear speed signal or VSS signal missing (1993)
37
Erratic left rear speed signal or erratic VSS signal (1993)
38
Wheel speed error
41
4 Wheel Anti-Lock (4WAL) control unit fault
42
4 Wheel Anti-Lock (4WAL) control unit fault
43
4 Wheel Anti-Lock (4WAL) control unit fault
44
4 Wheel Anti-Lock (4WAL) control unit fault
45
4 Wheel Anti-Lock (4WAL) control unit fault
46
4 Wheel Anti-Lock (4WAL) control unit fault
47
4 Wheel Anti-Lock (4WAL) control unit fault
48
4 Wheel Anti-Lock (4WAL) control unit fault
49
4 Wheel Anti-Lock (4WAL) control unit fault
50
4 Wheel Anti-Lock (4WAL) control unit fault
51
4 Wheel Anti-Lock (4WAL) control unit fault
52
4 Wheel Anti-Lock (4WAL) control unit fault
53
4 Wheel Anti-Lock (4WAL) control unit fault
54
4 Wheel Anti-Lock (4WAL) control unit fault