CAB Power Feed Circuit
Symptom:
CAB POWER FEED
When Monitored and Set Condition:
CAB POWER FEED
When Monitored: Ignition on. The CAB monitors the Fused B (+) circuit at all times for proper system voltage.
Set Condition: If the Fused B (+) voltage is missing when the CAB detects that an internal main driver is not "on", the Diagnostic Trouble Code (DTC) is set.
POSSIBLE CAUSES
INTERMITTENT DTC
BLOWN FUSE - FUSED B (+) CIRCUIT
NO B+ SUPPLY TO FUSE
FUSED B (+) CIRCUIT OPEN
FUSED B (+) CIRCUIT INTERMITTENTLY SHORTED TO GROUND
FUSED B (+) CIRCUIT SHORTED TO GROUND
CAB - FUSED B (+) CIRCUIT OPEN
CAB - FUSED B (+) CIRCUIT SHORTED TO GROUND