POWER ASSIST SYSTEMS: POWER STEERING SYSTEM (for Gasoline Model): C1515; Torque Sensor Zero Point Adjustment Undone; 2019 - 2022 MY Avalon [04/2018

Last Modified: 08-21-2023	6.11:8.1.0	Doc ID: RM100000001B1VW
Model Year Start: 2019	Model: Avalon	Prod Date Range: [04/2018 - ]
Title: POWER ASSIST SYSTEMS: POWER STEERING SYSTEM (for Gasoline Model): C1515; Torque Sensor Zero Point Adjustment Undone; 2019 - 2022 MY Avalon [04/2018 - ]

DTC

C1515

Torque Sensor Zero Point Adjustment Undone

DESCRIPTION

This DTC does not indicate a malfunction. The power steering ECU (rack and pinion power steering gear assembly) stores this DTC when it determines that torque sensor zero point calibration has not been performed.

When the IG terminal voltage is below 8 V, torque sensor zero point calibration cannot be 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.	Torque sensor zero point calibration	EPS warning light: Comes on	Zero point calibration is performed or the engine switch 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 rack and pinion power steering gear 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)

Chassis > EMPS > Utility

Tester Display
Torque Sensor Adjustment

(b) Check for DTCs. (Step 2)

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

REPLACE RACK AND PINION POWER STEERING GEAR ASSEMBLY

END