Toyota Avalon (XX50) 2019-2022 Service & Repair Manual: Torque Sensor Zero Point Adjustment Undone (C1515)

Toyota Avalon (XX50) 2019-2022 Service & Repair Manual / Steering / Power Assist Systems / Power Steering System(for Hv Model) / Torque Sensor Zero Point Adjustment Undone (C1515)

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 power 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 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
A

REPLACE RACK AND PINION POWER STEERING GEAR ASSEMBLY

B

END
    Torque Sensor1 (C1511-C1514,C1517,C1521-C1523,C1528,C1531-C1555)

    Torque Sensor Zero Point Adjustment Incomplete (C1516)

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