G4 Check Grounds at ABS Control Module
- Key OFF.
- Anti-lock brake control module disconnected.
- Measure the resistance between the 3A ("BK") terminal and ground and the 8A ("BK") terminal and ground at the anti-lock brake control module.
- Are the resistances less than 5 ohms?
YES -- Replace anti-lock brake control module.
NO -- Service the "BK" wire(s) to ground.