G4 Check Grounds at ABS Control Module

- Key OFF.

- Anti-lock brake control module disconnected.

NOTE: These measurements performed on connector C1.

- Measure the resistance between the terminal C1-3 "BK" and ground and terminal C1-8 "BK" 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.