Code 6-1, Front Fail-Safe Relay Circuit
- Remove and test front fail-safe relay. See RELAY TEST under DIAGNOSIS & TESTING . Replace relay if it is defective. If relay is okay, turn ignition on. Measure voltage between Yellow/Black wire of fail-safe relay and ground.
- If no battery voltage exists, repair open Yellow/Black wire between fuse No. 3 and front fail-safe relay. If battery voltage is present, turn ignition off and disconnect 10-pin connector from solenoids. Connector is located on right side of engine compartment, near shock tower.
- Using DVOM, check for continuity between Brown/Black wire of fail-safe relay and ground. If no continuity exists, go to next step. If continuity exists, repair short in Brown/Black wire between solenoid and front fail-safe relay.
- Check for continuity at solenoid connector (solenoid side) between Brown/Black wire and ground and between Brown/Blue wire and ground. If no continuity exists, go to next step. If continuity exists, solenoid is defective.
- Disconnect 18-pin and 12-pin connectors from control unit. Check for continuity at 12-pin connector between ground and Red/Black, Yellow/Black, Red/Blue and Yellow/Blue wires. If continuity does not exist, go to next step. If continuity exists in any wire, repair short in wire having continuity between solenoid and control unit connector.
- Remove rear fail-safe relay. Check for continuity at 18-pin connector between Yellow/Green wire and ground. If continuity exists, repair short in Yellow/Green wire control unit connector and front fail-safe relay. If no continuity exists, reinstall front fail-safe relay and turn ignition on.
- Measure voltage at 18-pin connector between Yellow/Black wire and ground. If no battery voltage exists, repair open Yellow/Black wire between ABS control unit and front fail-safe relay. If battery voltage is present, check for loose control unit connectors. If connectors are okay, install a known good control unit and retest.