DTC 6-4

Fig. 40 Code 6-4: Rear Fail-Safe Diagnosis (Part 1 Of 2):

Fig. 40 Code 6-4: Rear Fail-Safe Diagnosis (Part 2 Of 2):

Diagnostic Trouble Code (DTC) 64: Rear Fail-safe Relay Diagnosis
The 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