Toyota CH-R Service Manual: Torque Sensor Zero Point Adjustment Incomplete (C1516)

Toyota CH-R Service Manual / Power Assist Systems / Power Steering System / Torque Sensor Zero Point Adjustment Incomplete (C1516)

DESCRIPTION

This DTC does not indicate a malfunction. The power steering ECU assembly stores this DTC 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

C1516

Torque Sensor Zero Point Adjustment Incomplete

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

-

EPS warning light: Comes on

Ignition switch ON again

There is no malfunction if this DTC is not output again after clearing the DTC 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) Clear the DTCs. (Step 1)

Click here

Chassis > EMPS > Clear DTCs

(b) Calibrate the torque sensor zero point. (Step 2)

Click here

Chassis > EMPS > Utility

Tester Display

Torque Sensor Adjustment

(c) Check for DTCs. (Step 3)

Click here

Chassis > EMPS > Trouble Codes

HINT:

If DTCs are output, perform steps (1) to (3) 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) Clear the DTCs. (Step 1)

Click here

Chassis > EMPS > Clear DTCs

(b) Calibrate the torque sensor zero point. (Step 2)

Click here

Chassis > EMPS > Utility

Tester Display

Torque Sensor Adjustment

(c) Check for DTCs. (Step 3)

Click here

Chassis > EMPS > Trouble Codes

HINT:

If DTCs are output, perform steps (1) to (3) 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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