Operation CHARM: Car repair manuals for everyone.

Power/Ground to Anti-Lock Brake Control Module




If the fuse had failed:
A. Check the weather packing of the power connector to the HCU C147.
B. Remove power distribution box fuse 14 (60A).
C. Measure the resistance between the outside pin of power distribution box fuse 14 (60A), circuit 532 (O/Y), and ground.
D. Spray with water and wiggle the wiring between the power distribution box and the HCU.
E. If any continuity is measured, repair/replace the wiring.

Check for opens in wiring:
A. Disconnect the HCU C147.
B. While measuring the voltage between HCU C147-2, circuit 532 (O/Y), and negative battery post, wiggle the wiring harness.
C. If the voltage momentary drops below 10 volts, while the harness is wiggled, repair or replace the wiring.
D. While measuring the resistance between the HCU C147-1, circuit 530 (LG/Y), and ground, wiggle the wiring harness.
E. If the resistance momentarily goes above 5 ohms, while the harness is wiggled, repair or replace the wiring.