Toyota CH-R Service Manual: Torque Sensor Zero Point Adjustment Undone (C1515)

Toyota CH-R Service Manual / Power Assist Systems / Power Steering System / Torque Sensor Zero Point Adjustment Undone (C1515)

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 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 ignition switch is turned ON 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
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

END

2.	REPLACE POWER STEERING ECU ASSEMBLY

(a) Replace the power steering ECU assembly.

Click here

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

REPLACE ELECTRIC POWER STEERING COLUMN SUB-ASSEMBLY

END

Torque Sensor1 (C1511-C1514,C1517)

DESCRIPTION The torque sensor converts the rotational torque received from the steering wheel into electric signals and sends them to the power steering ECU assembly. DTC No. ...

Assist Map Number Un-Writing (C1581)

DESCRIPTION This DTC will be stored if the power steering ECU assembly determines that the assist map is not written in the ECU. DTC No. Detection Item DTC Detecti ...

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