DTC 6-4

Rear Fail-safe Relay Diagnosis. (Part 1 Of 20:

Rear Fail-safe Relay Diagnosis. (Part 2 Of 2):

CONDITIONS
The The Anti-lock Brake System (ABS) control unit monitors the voltage from the battery for the six solenoids during the initial diagnosis when the fail-safe relays are OFF. The ABS control unit keeps the ABS indicator light on if it detects the battery voltage at the two rear solenoid circuits.

POSSIBLE CAUSES
- Rear fail-safe relay stuck ON.
- Short to power in the solenoid drive circuits between the rear fail-safe relay and ABS control unit.