Symptom:
VALVE POWER FEED FAILURE
When Monitored and Set Condition:
VALVE POWER FEED FAILURE
When Monitored:
Ignition ON. The CAB monitors the Valve Fused B(+) circuit at all
times for proper system voltage.
Set Condition:
If the Valve Fused B(+) is missing, the DTC will be set.
POSSIBLE CAUSES
INTERMITTENT DTC
ABS VALVE FUSE
ABS VALVE FUSED B(+) SUPPLY CIRCUIT OPEN
ABS VALVE FUSED B(+) CIRCUIT OPEN
ABS VALVE FUSED B(+) CIRCUIT INTERMITTENT SHORT TO GROUND
ABS VALVE FUSED B(+) CIRCUIT SHORT TO GROUND
DAMAGED CAB/CAB HARNESS CONNECTOR
CAB - GROUND CIRCUIT OPEN
CAB - INTERNAL FAULT
TEST
ACTION
APPLICABILITY
1
Turn the ignition on.
With the DRBIII
t
, read DTC’s.
With the DRBIII
t
, erase DTC’s.
Turn the ignition off.
Turn the ignition on.
With the DRBIII
t
, read DTC’s.
Does the DRBIII
t
display VALVE POWER FEED FAILURE?
All
Yes
→
No
→
2
Turn the ignition off.
Remove and Inspect the ABS Valve fuse.
Is the ABS Valve fuse open?
All
Yes
→
No
→
34
BRAKES (CAB)