C0274
DTC C0274 B+ SHORT CIRCUIT IN ABS MOTOR RELAY CIRCUITCIRCUIT DESCRIPTION
DTC Detecting Condition:
The ABS motor relay supplies power to the ABS pump motor. While the ABS is activated, the ECU switches 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 battery/alternator shortage, the DTCs may be stored.
Wiring Diagram:
Step 1 - 2:
Step 3 - 5:
INSPECTION PROCEDURE
HINT: Start the inspection from step 1 when using the hand-held tester and start from step 2 when not using the hand-held tester.