Internal CAB Fault

Tests 1 Through 3:

Tests 4 Through 7:

Symptom:
INTERNAL CAB FAULT

When Monitored and Set Condition:
INTERNAL CAB FAULT

When Monitored:
1. Ignition turned on for at least 3.4 seconds.
2. ABS power relay closed.
3. Valve command for a particular solenoid not present.

Set Condition:
4. Low feedback voltage from low side of solenoid.
5. Criteria 1-4 satisfied for over 20 consecutive controller checks spaced 5 milliseconds (ms) apart.

POSSIBLE CAUSES
ABS PUMP FUSE FAULTY
CAB GROUND CIRCUIT OPEN
FUSED B(+) CIRCUIT OBSERVABLE DEFECT
FUSED B(+) CIRCUIT OPEN
CAB CONNECTOR OBSERVABLE DEFECT
CAB DEFECTIVE