CAB Power Feed Circuit

Test 1 Through 3:

Test 4 Through 9:

Symptom:
CAB POWER FEED CIRCUIT

When Monitored and Set Condition:
CAB POWER FEED CIRCUIT

When Monitored: 1. With ignition on. 2. The CAB monitors the Fused B(+) circuit at cavity 9 at all times for proper system voltage.

Set Condition: If the Voltage is missing when the CAB detects that an internal main driver is not on, then the Diagnostic trouble Code (DTC) is set.

POSSIBLE CAUSES
ABS/SYSTEM FUSE #2 DEFECTIVE
FUSED B(+) CIRCUIT OPEN
FUSED B(+) CIRCUIT INTERMITTENTLY SHORTED TO GROUND
FUSED B(+) CIRCUIT SHORTED TO GROUND
CAB CONNECTOR OBSERVABLE DEFECT
HCU/PUMP DEFECTIVE
CAB DEFECTIVE