Lexus NX: Torque Sensor Zero Point Adjustment Undone (C1515,C1516)

DESCRIPTION

These DTCs do not indicate a malfunction.

The power steering ECU assembly stores C1515 when it determines that torque sensor zero point calibration has not been performed.

The power steering ECU assembly stores C1516 when it determines that torque sensor zero point calibration has not completed.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

Warning Indicate

Return-to-normal Condition

Note

C1515

Torque Sensor Zero Point Adjustment Undone

This DTC is stored when torque sensor zero point calibration has not been performed.

-

On

Zero point calibration occurs

There is no malfunction if this DTC is not output again after performing zero point calibration.

C1516

Torque Sensor Zero Point Adjustment Incomplete

Torque sensor zero point calibration is incomplete due to the steering wheel being touched during calibration.

-

On

Clear DTC

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.

CAUTION / NOTICE / HINT

NOTICE:

  • If the electric power steering column sub-assembly has been replaced, perform torque sensor zero point calibration.

    Click here

  • If the power steering ECU assembly has been replaced, perform assist map writing and torque sensor zero point calibration.

    Click here

PROCEDURE

1.

CHECK FOR DTC

(a) Calibrate the torque sensor zero point (step 1).

Click here

Chassis > EMPS > Utility

Tester Display

Torque Sensor Adjustment

(b) Check for DTCs (step 2).

Click here

Chassis > EMPS > Trouble Codes

HINT:

If DTCs are output, perform steps 1 and 2 two more times.

Result

Proceed to

DTCs are still output after performing steering zero point calibration 3 times.

A

Normal system code is output.

B

B

END

A

2.

REPLACE POWER STEERING ECU ASSEMBLY

(a) Replace the power steering ECU assembly.

Click here

NEXT

3.

CHECK FOR DTC

(a) Calibrate the torque sensor zero point (step 1).

Click here

Chassis > EMPS > Utility

Tester Display

Torque Sensor Adjustment

(b) Check for DTCs (step 2).

Click here

Chassis > EMPS > Trouble Codes

HINT:

If DTCs are output, perform steps 1 and 2 two more times.

Result

Proceed to

DTCs are still output after performing steering zero point calibration 3 times.

A

Normal system code is output.

B

A

REPLACE ELECTRIC POWER STEERING COLUMN SUB-ASSEMBLY

B

END

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