Retrieving abs codes – Equus 3123 - GM Code Reader (1982 - 1995) User Manual
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Retrieving ABS Codes
GM
3-14
3.5.5 Bosch 2U System Service Codes
Code
Service Code Definition
41
Right front solenoid valve fault
45
Left front solenoid valve fault
55
Rear solenoid valve fault
61
Pump motor or motor relay fault
63
Solenoid valve relay fault
71
Electronic Brake Control Module (EBCM) fault
72
Serial data link fault
75
Lateral accelerometer fault; short to battery, ground or
open circuit
76
Lateral accelerometer fault, signal out of range or incorrect
Code
Service Code Definition
12
Normal
21
Right front wheel sensor fault
22
Right front toothed wheel frequency error
25
Left front wheel sensor fault
26
Left front toothed wheel frequency error
35
Rear axle speed sensor fault
36
Rear axle toothed wheel frequency error
41
Right front solenoid valve fault
45
Left front solenoid valve fault
55
Rear wheels solenoid valve fault
61
Pump motor or motor relay fault
63
Solenoid valve relay fault
71
Electronic brake control module fault
72
Serial data line fault