Dtc C1515 Torque Sensor Zero Point Adjustment Undone

Steering. Corolla. Zre142 Aze141
Power Assist Systems. Corolla. Zre142 Aze141

DESCRIPTION

INSPECTION PROCEDURE

INITIALIZE ROTATION ANGLE SENSOR AND CALIBRATE TORQUE SENSOR ZERO POINT

CHECK FOR DTC

REPLACE POWER STEERING ECU

INITIALIZE ROTATION ANGLE SENSOR AND CALIBRATE TORQUE SENSOR ZERO POINT

CHECK FOR 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 outputs these DTCs when it determines that the rotation angle sensor value initialization and torque sensor zero point calibration have not been performed.

DTC No.
DTC Detection Condition
Trouble Area
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

NOTICE:
If the steering column assembly or power steering ECU has been replaced, perform the rotation angle sensor initialization and torque sensor zero point calibration (COROLLA_ZRE142 RM00000275305CX.html).
1.INITIALIZE ROTATION ANGLE SENSOR AND CALIBRATE TORQUE SENSOR ZERO POINT

  1. Initialize the rotation angle sensor value and calibrate the torque sensor zero point (COROLLA_ZRE142 RM00000275305CX.html).


NEXT


2.CHECK FOR DTC

  1. Check for DTCs (COROLLA_ZRE142 RM00000275005OX.html).

    Result:
    Condition
    		Proceed to
    DTCs are still output after performing rotation angle sensor value initialization and steering zero point calibration 3 times*1.
    		A
    DTCs are still output even after performing rotation angle sensor value initialization and steering zero point calibration once or twice*2.
    		B
    Normal system code is output.
    		C
    HINT:
    1. *1: The power steering ECU must be replaced if DTC C1515 or C1525 is still output even after the torque sensor zero point calibration is performed 3 times.
    2. *2: Perform the torque sensor zero point calibration again if DTC C1515 or C1525 is still output even after the calibration is performed once or twice.


B
PERFORM ZERO POINT CALIBRATION AGAIN (TORQUE SENSOR) (COROLLA_ZRE142 RM00000275305CX.html)

C
END
A


3.REPLACE POWER STEERING ECU

  1. Replace the power steering ECU (COROLLA_ZRE142 RM000002XN605AX.html).


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 (COROLLA_ZRE142 RM00000275305CX.html).


NEXT


5.CHECK FOR DTC

  1. Check for DTCs (COROLLA_ZRE142 RM00000275005OX.html).

    Result:
    Condition
    		Proceed to
    DTCs are still output after performing rotation angle sensor value initialization and steering zero point calibration 3 times*1.
    		A
    DTCs are still output even after performing rotation angle sensor value initialization and steering zero point calibration twice*2.
    		B
    Normal system code is output.
    		C
    HINT:
    1. *1: The steering column assembly must be replaced if DTC C1515 or C1525 is still output even after the torque sensor zero point calibration is performed 3 times.
    2. *2: Perform the torque sensor zero point calibration again if DTC C1515 or C1525 is still output even after the calibration is performed twice.
    NOTICE:
    If replacing the steering column assembly, clear the rotation angle sensor calibration value, initialize the rotation angle sensor value, and calibrate the torque sensor zero point (COROLLA_ZRE142 RM00000275305CX.html).


B
PERFORM ZERO POINT CALIBRATION AGAIN (TORQUE SENSOR) (COROLLA_ZRE142 RM00000275305CX.html)

C
END
A

REPLACE STEERING COLUMN ASSEMBLY (COROLLA_ZRE142 RM0000029SZ02TX.html)