Dtc C1515 Torque Sensor Zero Point Adjustment Undone

Steering. Lexus Is250, Is220D. Gse20 Ale20
Power Steering. Lexus Is250, Is220D. Gse20 Ale20

DESCRIPTION

INSPECTION PROCEDURE

INITIALIZE ROTATION ANGLE SENSOR AND CALIBRATE TORQUE SENSOR ZERO POINT

RECONFIRM DTC

REPLACE POWER STEERING ECU ASSEMBLY

INITIALIZE ROTATION ANGLE SENSOR AND CALIBRATE TORQUE SENSOR ZERO POINT

RECONFIRM DTC

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.

DTC No.
DTC Detection Condition
Procedure
C1515
This DTC is detected when torque sensor zero point calibration has not been performed.
There is no malfunction if this DTC is not output again after performing zero point calibration.
C1525
This DTC is detected when rotation angle sensor value initialization has not been performed.
There is no malfunction if this DTC is not output again after performing rotation angle sensor value initialization.

INSPECTION PROCEDURE

1.INITIALIZE ROTATION ANGLE SENSOR AND CALIBRATE TORQUE SENSOR ZERO POINT

  1. Initialize the rotation angle sensor and calibrate the torque sensor zero point (Click here).


NEXT


2.RECONFIRM DTC

  1. Check for DTCs.

    Result:
    Result
    		Proceed to
    DTCs are still output after performing rotation angle sensor value initialization and steering zero point calibration 3 times.
    		A
    DTCs are still output after performing rotation angle sensor value initialization and steering zero point calibration once or twice.
    		B
    Normal system code is output.
    		C
    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.


B
Go to step 1

C
END
A


3.REPLACE POWER STEERING ECU ASSEMBLY

  1. Replace the power steering ECU assembly (Click here).


NEXT


4.INITIALIZE ROTATION ANGLE SENSOR AND CALIBRATE TORQUE SENSOR ZERO POINT

  1. Initialize the rotation angle sensor value and calibrate the torque sensor zero point (Click here).


NEXT


5.RECONFIRM DTC

  1. Check for DTCs.

    Result:
    Result
    		Proceed to
    DTCs are still output after performing rotation angle sensor value initialization and steering zero point calibration 3 times.
    		A
    DTCs are still output after performing rotation angle sensor value initialization and steering zero point calibration once or twice.
    		B
    Normal system code is output.
    		C
    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.
    NOTICE:
    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 (Click here).


B
Go to step 4

C
END
A

REPLACE POWER STEERING GEAR ASSEMBLY