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Home >> Jeep >> 2003 >> Grand Cherokee 2WD V8-4.7L >> Repair and Diagnosis >> A L L Diagnostic Trouble Codes ( DTC ) >> Testing and Inspection >> Manufacturer Code Charts >> Antilock Brake System (ABS) >> CAB Internal Failure

CAB Internal Failure

Test 1-3:




Test 4-6:





Symptom
CAB INTERNAL 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