DTC C0273/13 Open or Short Circuit in ABS Motor Relay Circuit: Description

The ABS motor relay supplies power to the ABS pump motor. While the ABS is activated, the ECU turns the motor relay on and operates the ABS pump motor.

If the voltage supplied to the motor relay (+BM) is below the DTCs detection threshold due to low voltage from the battery or alternator, the DTC may be stored.

DTC DETECTION CONDITION CHART

DTC Code	DTC Detection Condition	Trouble Area
C0273/13	Any of the following is detected: When the motor relay is actuated, voltage is not supplied to the pump motor. When the motor relay is not actuated, voltage in the pump motor is high.	Fusible link block (ABS NO. 1 fuse) ABS motor relay circuit Brake actuator assembly (ABS motor relay)