Controller Failure

Test 1 - 3:

Test 4 - 6:

SYMPTOM:
CONTROLLER FAILURE

WHEN MONITORED:
Ignition on. The CAB monitors its internal microprocessors for correct operation.

SET CONDITION:
If the CAB detects an internal fault, the DTC is set.

POSSIBLE CAUSES:
- INTERMITTENT DTC
- DAMAGED CAB/CAB HARNESS CONNECTOR
- CAB - GROUND CIRCUIT OPEN
- ABS VALVE FUSED B(+) CIRCUIT OPEN
- ABS PUMP FUSED B(+) CIRCUIT OPEN
- CAB - INTERNAL FAULT