C1528

POWER STEERING: ELECTRONIC POWER STEERING SYSTEM: C1528: Motor Rotation Angle Sensor Malfunction

DTC C1528 - Motor Rotation Angle Sensor Malfunction

DESCRIPTION

The motor rotation angle sensor detects the motor rotation angle and sends this information to the power steering ECU.






WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. CHECK POWER STEERING EARTH WIRE (POWER STEERING LINK ASSEMBLY - BODY GROUND)
(a) Check the installation condition of the power steering earth wire connected to the power steering link assembly.
OK:
The power steering earth wire is securely installed to the power steering link assembly and body ground.
NG -- REINSTALL POWER STEERING EARTH WIRE
OK -- Continue to next step.
2. CHECK WIRE HARNESS (POWER STEERING ECU - MOTOR ROTATION ANGLE SENSOR)





(a) Disconnect the C2 connector from the power steering link assembly.
(b) Disconnect the C4 connector from the power steering ECU.
(c) Measure the resistance of the wire harness connector.
Standard resistance:






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





(a) Measure the resistance of the motor rotation angle sensor 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 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 -- Continue to next step.
4. REPLACE POWER STEERING ECU
(a) Replace the power steering ECU Removal.
NEXT -- Continue to next step.
5. INITIALIZE ROTATION ANGLE SENSOR AND CALIBRATE TORQUE SENSOR ZERO POINT
(a) Initialize the rotation angle sensor and calibrate the torque sensor zero point Electronic Power Steering System.
NEXT -- Continue to next step.
6. RECONFIRM DTC
(a) Check for DTCs Electronic Power Steering System.
(b) Is DTC C1528 output?
OK:
DTC is not output.
NOTICE:
- 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 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 -- END