C0274

DTC C0274/14 Short to B+ in ABS Motor Relay Circuit

DESCRIPTION

DTC Detection Condition:

- The ABS motor relays consist of the 2 semiconductor relays and are included in the J/B NO. 2.
- The ABS motor relay 1 is turned on after turning the ignition switch to the ON position. If the DTCs in the ABS pump motor circuit are memorized, the ABS motor relay 1cuts off the power supply to the ABS motor relay 2 and performs the fail safe.
- While any of the ABS, BA, TRAC and VSC is operating, the skid control ECU (included in the actuator) turns the ABS motor relay 2 on to operate the actuator pump motor.
- If the voltage applied to the ABS motor relays (+BM) drops below the condition that detects the DTCs due to the shortage of the battery or alternator output, the DTCs may be memorized.

Wiring Diagram:

Step 1:

Step 1(Continued)-3:

Step 3(Continued)-4:

Step 5-6:

Step 6(Continued):

INSPECTION PROCEDURE