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 assembly outputs these DTCs when it determines that rotation angle sensor value initialization and torque sensor zero point calibration are incomplete.

DTC No.	DTC Detection Condition	Procedure
C1516	Steering 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

1.CLEAR DTC

NEXT

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

Initialize the rotation angle sensor and calibrate the torque sensor zero point .

NEXT

3.RECONFIRM DTC

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 2

C

Go to step 6

C

END

A

REPLACE POWER STEERING GEAR ASSEMBLY

LEXUS IS250, IS220d / GSE20 ALE20

POWER STEERING

Lexus IS250 IS220d GSE20 ALE20

ELECTRONIC POWER STEERING SYSTEM