C1532

POWER STEERING: ELECTRONIC POWER STEERING SYSTEM: C1521-C1524,C1532,C1555: Motor Circuit Malfunction

DTC C1521 - Motor Circuit Malfunction

DTC C1522 - Motor Circuit Malfunction

DTC C1523 - Motor Circuit Malfunction

DTC C1524 - Motor Circuit Malfunction

DTC C1532 - ECU Malfunction

DTC C1555 - Motor Relay Welding Failure

DESCRIPTION

The power steering ECU supplies current to the power steering motor through this circuit.






WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. CHECK WIRE HARNESS (POWER STEERING ECU - POWER STEERING MOTOR)




(a) Disconnect the C4 connector from the power steering ECU.
(b) Disconnect the C3 connector from the power steering motor.
(c) Measure the resistance of the wire harness side connector.
Standard resistance:






NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.
2. INSPECT POWER STEERING LINK ASSEMBLY (POWER STEERING MOTOR)




(a) Measure the resistance of the power steering motor connector.
Standard resistance:





- If replacing the power steering link assembly, clear the rotation angle sensor calibration value, initialize the rotation angle sensor, and calibrate the torque sensor zero point Electronic Power Steering System.
- If replacing the power steering ECU, initialize the rotation angle sensor and calibrate the torque sensor zero point Electronic Power Steering System.
- If replacing the power steering link assembly, perform VGRS actuator angle initialization Programming and Relearning and VGRS actuator angle neutral calibration Variable Gear Ratio Steering System after wheel alignment adjustment.

NG -- REPLACE POWER STEERING LINK ASSEMBLY
OK -- REPLACE POWER STEERING ECU