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Internal CAB Fault

Test 1&2:




Test 3-7:




Test 8-11:




Test 12 & 13:





Symptom:
INTERNAL CAB FAULT

When Monitored and Set Condition:
INTERNAL CAB FAULT

When Monitored: Ignition turned on for at least 3.4 seconds. ABS power relay closed. Valve command for a particular solenoid present.

Set Condition: High feedback voltage from the low side of the solenoid for over 8 consecutive controller checks spaced 5 milliseconds (ms) apart.

POSSIBLE CAUSES
FUSE BLOWN - FUSED B (+) CIRCUIT
GROUND CIRCUIT OPEN
FUSED B(+) CIRCUIT SHORTED TO GROUND
FUSED B(+) CIRCUIT INTERMITTENTLY SHORTED TO GROUND
GROUND CIRCUIT RADIO FREQUENCY INTERFERENCE
CAB DEFECTIVE - FUSED B(+) CIRCUIT OPEN
CAB DEFECTIVE - GROUND CIRCUIT OPEN
CAB DEFECTIVE - FUSED (+) CIRCUIT SHORTED TO GROUND