C1525

POWER ASSIST SYSTEMS: POWER STEERING SYSTEM: C1515,C1525: Torque Sensor Zero Point Adjustment Undone

DTC C1515 - Torque Sensor Zero Point Adjustment Undone

DTC C1525 - Rotation Angle Sensor Initialization Undone

DESCRIPTION

These DTCs do not indicate a malfunction. The power steering ECU outputs these DTCs when it determines that the rotation angle sensor value initialization and torque sensor zero point calibration have not been performed.






INSPECTION PROCEDURE
NOTE: If the steering column or power steering ECU is replaced, perform rotation angle sensor initialization and torque sensor zero point calibration Programming and Relearning.

PROCEDURE

1. INITIALIZE ROTATION ANGLE SENSOR 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.

2. RECONFIRM DTC
(a) Check for DTCs Reading and Clearing Diagnostic Trouble Codes.
Result:





HINT:
- *1: The power steering ECU must be replaced if DTC C1515 or C1525 is still output even after rotation angle sensor value initialization and torque sensor zero point calibration are performed 3 times.
- *2: Perform rotation angle sensor value initialization and torque sensor zero point calibration again if DTC C1515 or C1525 is still output even after the calibration is performed 1 or 2 times.

C -- END
B -- PERFORM ROTATION ANGLE SENSOR INITIALIZATION AND TORQUE SENSOR ZERO POINT CALIBRATION
A -- Continue to next step.

3. REPLACE POWER STEERING ECU
(a) Replace the power steering ECU Removal.
NEXT -- Continue to next step.

4. INITIALIZE ROTATION ANGLE SENSOR 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.

5. RECONFIRM DTC
(a) Check for DTCs Reading and Clearing Diagnostic Trouble Codes.
Result:





HINT:
- *1: The steering column assembly must be replaced if DTC C1515 or C1525 is still output even after rotation angle sensor value initialization and torque sensor zero point calibration are performed 3 times.
- *2: Perform rotation angle sensor value initialization and torque sensor zero point calibration again if DTC C1515 or C1525 is still output even after the calibration is performed 2 times.
NOTE: If the steering column is replaced, clear the rotation angle sensor calibration value, initialize the rotation angle sensor value, and calibrate the torque sensor zero point Programming and Relearning.

C -- END
B -- PERFORM ROTATION ANGLE SENSOR INITIALIZATION AND TORQUE SENSOR ZERO POINT CALIBRATION
A -- REPLACE STEERING COLUMN