Circuit Description

ABS control relay supplies power to ABS pump motor. ECU switches control relay on and operates ABS pump motor when ABS is activated. DTC is set when ECU detects zero voltage at terminal No. 4 (Gray/Blue wire) on ABS control relay connector or battery voltage at terminal No. 5, connector A4 on ABS actuator connector. Possible causes are:

• ABS control relay.
• ABS control relay circuit short to battery voltage.
• ECU.