Dtc C1516 Torque Sensor Zero Point Adjustment Incomplete

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

DESCRIPTION

INSPECTION PROCEDURE

CLEAR DTC

INITIALIZE ROTATION ANGLE SENSOR AND CALIBRATE TORQUE SENSOR ZERO POINT

CHECK FOR DTC

REPLACE POWER STEERING ECU

CLEAR DTC

INITIALIZE ROTATION ANGLE SENSOR AND CALIBRATE TORQUE SENSOR ZERO POINT

CHECK FOR DTC

DTC C1516 Torque Sensor Zero Point Adjustment Incomplete

DTC C1526 Rotation Angle Sensor Initialization Incomplete


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 are incomplete.

DTC No.
DTC Detection Condition
Trouble Area
C1516
Torque sensor zero point calibration is incomplete due to the steering wheel being touched during calibration.
There is no malfunction if this DTC is not output again after clearing the DTCs and torque sensor calibration value, and performing zero point calibration.
C1526
Rotation angle sensor value initialization is incomplete due to the steering wheel being touched during calibration.
There is no malfunction if this DTC is not output again after clearing the DTCs and torque sensor calibration value, and 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.CLEAR DTC

  1. Clear the DTCs (COROLLA_ZRE142 RM00000275005OX.html).


NEXT


2.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


3.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 C1516 or C1526 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 C1516 or C1526 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


4.REPLACE POWER STEERING ECU

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


NEXT


5.CLEAR DTC

  1. Clear the DTCs (COROLLA_ZRE142 RM00000275005OX.html).


NEXT


6.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


7.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 C1516 or C1526 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 C1516 or C1526 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)