C1515

POWER STEERING: ELECTRONIC POWER STEERING SYSTEM: C1515: 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 assembly outputs these DTCs when it determines that rotation angle sensor value initialization and torque sensor zero point calibration have not been performed. When IG terminal voltage is 9 V or less rotation angle sensor initialization and torque sensor zero point calibration cannot be performed.






INSPECTION PROCEDURE

PROCEDURE

1. 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.
2. RECONFIRM DTC
(a) Check for DTCs.
Result:





HINT:
Replace the power steering ECU assembly if DTCs are still output after performing rotation angle sensor value initialization and steering zero point calibration 3 times.

C -- END
B -- INITIALIZE ROTATION ANGLE SENSOR AND CALIBRATE TORQUE SENSOR ZERO POINT
A -- Continue to next step.
3. REPLACE POWER STEERING ECU ASSEMBLY
(a) Replace the power steering ECU assembly 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 Electronic Power Steering System.
NEXT -- Continue to next step.
5. RECONFIRM DTC
(a) Check for DTCs.
Result:





HINT:
Replace the power steering gear assembly if DTCs are still output after performing rotation angle sensor value initialization and steering zero point calibration 3 times.
NOTE:
If replacing the power steering gear assembly, clear the rotation angle sensor calibration value, initialize the rotation angle sensor value, and calibrate the torque sensor zero point Electronic Power Steering System.

C -- END
B -- INITIALIZE ROTATION ANGLE SENSOR AND CALIBRATE TORQUE SENSOR ZERO POINT
A -- REPLACE POWER STEERING GEAR ASSEMBLY