Last Modified: 05-13-2024 6.11:8.1.0 Doc ID: RM100000001C0X3
Model Year Start: 2019 Model: GR Corolla Prod Date Range: [06/2018 - 09/2019]
Title: POWER ASSIST SYSTEMS: POWER STEERING SYSTEM (for Gasoline Model (for Hatchback)): C1515; Torque Sensor Zero Point Adjustment Undone; 2019 - 2020 MY Corolla Corolla Hatchback GR Corolla [06/2018 - 09/2019]

DTC

C1515

Torque Sensor Zero Point Adjustment Undone

DESCRIPTION

This DTC does not indicate a malfunction. The power steering ECU with motor assembly stores this DTC when it determines that torque sensor zero point calibration has not been performed.

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.

-

EPS warning light: Comes on

Zero point calibration is performed or the engine switch is turned on (IG) again

There is no malfunction if this DTC is not output again after 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 2019 - 2020 MY Corolla Corolla Hatchback GR Corolla [06/2018 - 09/2019]; POWER ASSIST SYSTEMS: POWER STEERING SYSTEM (for Gasoline Model (for Hatchback)): CALIBRATION

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

    Click here 2019 - 2020 MY Corolla Corolla Hatchback GR Corolla [06/2018 - 09/2019]; POWER ASSIST SYSTEMS: POWER STEERING SYSTEM (for Gasoline Model (for Hatchback)): CALIBRATION

PROCEDURE

1.

CHECK FOR DTC

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

Click here 2019 - 2020 MY Corolla Corolla Hatchback GR Corolla [06/2018 - 09/2019]; POWER ASSIST SYSTEMS: POWER STEERING SYSTEM (for Gasoline Model (for Hatchback)): CALIBRATION

Chassis > EMPS > Utility

Tester Display

Torque Sensor Adjustment

(b) Check for DTCs. (Step 2)

Click here 2019 - 2020 MY Corolla Corolla Hatchback GR Corolla [06/2018 - 09/2019]; POWER ASSIST SYSTEMS: POWER STEERING SYSTEM (for Gasoline Model (for Hatchback)): DTC CHECK / CLEAR

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 WITH MOTOR ASSEMBLY

(a) Replace the power steering ECU assembly.

Click here 2019 MY Corolla Corolla Hatchback Corolla HV GR Corolla [06/2018 - 01/2019]; POWER ASSIST SYSTEMS: POWER STEERING ECU: REMOVAL 2020 MY Corolla Corolla Hatchback Corolla HV GR Corolla [01/2019 - 03/2019]; POWER ASSIST SYSTEMS: POWER STEERING ECU: REMOVAL 2020 MY Corolla Corolla Hatchback Corolla HV GR Corolla [03/2019 - 09/2019]; POWER ASSIST SYSTEMS: POWER STEERING ECU: REMOVAL

NEXT

3.

CHECK FOR DTC

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

Click here 2019 - 2020 MY Corolla Corolla Hatchback GR Corolla [06/2018 - 09/2019]; POWER ASSIST SYSTEMS: POWER STEERING SYSTEM (for Gasoline Model (for Hatchback)): CALIBRATION

Chassis > EMPS > Utility

Tester Display

Torque Sensor Adjustment

(b) Check for DTCs. (Step 2)

Click here 2019 - 2020 MY Corolla Corolla Hatchback GR Corolla [06/2018 - 09/2019]; POWER ASSIST SYSTEMS: POWER STEERING SYSTEM (for Gasoline Model (for Hatchback)): DTC CHECK / CLEAR

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 2019 MY Corolla Corolla Hatchback Corolla HV GR Corolla [06/2018 - 01/2019]; STEERING COLUMN: STEERING COLUMN ASSEMBLY: REMOVAL 2020 MY Corolla Corolla Hatchback Corolla HV GR Corolla [01/2019 - 03/2019]; STEERING COLUMN: STEERING COLUMN ASSEMBLY: REMOVAL 2020 MY Corolla Corolla Hatchback Corolla HV GR Corolla [03/2019 - 09/2019]; STEERING COLUMN: STEERING COLUMN ASSEMBLY: REMOVAL

B

END