C0274

DTC C0274 B+ SHORT CIRCUIT IN ABS MOTOR RELAY CIRCUIT

CIRCUIT DESCRIPTION

DTC Detecting Condition:

- The VSC motor relays consist of 2 relays are included in the ABS R/B.
- The VSC cut relay is turned on after turning the ignition switch to the ON position. If the DTCs in the ABS pump motor circuit are memorized, the VSC cut relay cuts off the power supply to the VSC motor relay 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 VSC motor relay on to operate the actuator pump motor.
- If the voltage applied to the VSC motor relays (+BM) drops 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 - 2:

Step 3 - 5:

Step 6 - 7:

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.