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 assembly.
WIRING DIAGRAM
INSPECTION PROCEDURE
PROCEDURE
1. CHECK POWER STEERING EARTH WIRE (BETWEEN POWER STEERING LINK ASSEMBLY AND 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 HARNESS AND CONNECTOR (BETWEEN ECU ASSEMBLY AND MOTOR ROTATION ANGLE SENSOR)
(a) Disconnect the R25 connector from the power steering link assembly.
(b) Disconnect the P42 connector from the power steering ECU assembly.
(c) Measure the resistance according to the value(s) in the table below.
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 according to the value(s) in the table below.
Resistance:
NOTE: If replacing the power steering link assembly, clear the rotation angle sensor calibration value, initialize the rotation angle sensor value, and calibrate the torque sensor zero point Programming and Relearning
NG -- REPLACE POWER STEERING LINK ASSEMBLY
OK -- Continue to next step.
4. REPLACE POWER STEERING ECU ASSEMBLY
(a) Replace the power steering ECU assembly Removal.
NEXT -- Continue to next step.
5. INITIALIZE ROTATION ANGLE SENSOR VALUE AND CALIBRATE TORQUE SENSOR ZERO POINT
(a) Initialize the rotation angle sensor value and calibrate the torque sensor zero point Programming and Relearning.
NEXT -- Continue to next step.
6. RECONFIRM DTC
(a) Check for DTCs Reading and Clearing Diagnostic Trouble Codes.
(b) Is DTC C1528 output?
OK:
DTC is not output.
NOTE: If replacing the power steering link assembly, clear the rotation angle sensor calibration value, initialize the rotation angle sensor value, and calibrate the torque sensor zero point Programming and Relearning
NG -- REPLACE POWER STEERING LINK ASSEMBLY
OK -- END