TEST
ACTION
APPLICABILITY
2
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, actuate the ABS pump motor.
Did the Pump Motor operate when actuated?
All
No
→
Go To
3
Yes
→
Go To
14
3
Turn the ignition off.
Remove and inspect the ABS Pump fuse 8 in the PDC.
Is the Fuse blown?
All
Yes
→
Go To
4
No
→
Go To
8
4
Turn the ignition off.
Visually inspect the Fused B(+) Circuit in the wiring harness from the PDC to the
CAB. Look for any sign of an Intermittent Short to Ground.
Is the wiring harness OK?
All
Yes
→
Go To
5
No
→
Repair the Fused B(+) Circuit shorted to ground.
Perform ABS VERIFICATION TEST - VER 1.
5
Turn the ignition off.
Remove the ABS PUMP Fuse 8 from the Power Distribution Center (PDC).
Disconnect the CAB connector.
Note: Check connector - Clean/repair as necessary.
Using a test light connected to 12 volts, probe the Fused B (+) Circuit.
Is the test light on?
All
Yes
→
Repair the Fused B(+) circuit short to ground.
Perform ABS VERIFICATION TEST - VER 1.
No
→
Go To
6
6
Turn the ignition off.
Remove the ABS PUMP Fuse 8 from the PDC.
The CAB must be connected for the results of this test to be valid.
Using a test light connected to 12 volts, probe the Fused B (+) circuit in the PDC.
Is the test light on?
All
Yes
→
Replace the Controller Antilock Brake in accordance with the
Service Information. Refer to the symptom *Replacing the Con-
troller Antilock Brake for additional information.
Perform ABS VERIFICATION TEST - VER 1.
No
→
Go To
7
7
Turn the ignition off.
If there are no possible causes remaining, view repair.
All
Repair
Replace the ABS Pump Motor Fuse.
Perform ABS VERIFICATION TEST - VER 1.
35
BRAKES (CAB)
PUMP MOTOR FAULT —
Continued