C1525

POWER ASSIST SYSTEMS: POWER STEERING SYSTEM (for Brushless Type Motor): C1515, C1525: Torque Sensor Zero Point Adjustment Undone
C1525 - Rotation Angle Sensor Initialization Undone

DESCRIPTION

These DTCs do not indicate a malfunction. The power steering ECU assembly stores these DTCs when it determines that rotation angle sensor initialization and torque sensor zero point calibration have not been performed.





INSPECTION PROCEDURE

NOTICE:
* If the power steering ECU assembly has been replaced with a new one, perform rotation angle sensor initialization and torque sensor zero point calibration Power Steering System (For Brushless Type Motor).
* If the electric power steering column sub-assembly or power steering motor assembly has been replaced, perform rotation angle sensor initialization and torque sensor zero point calibration Power Steering System (For Brushless Type Motor).

PROCEDURE

1. CHECK FOR DTC

(a) Initialize the rotation angle sensor and calibrate the torque sensor zero point (step 1) Power Steering System (For Brushless Type Motor).

(b) Check for DTCs (step 2) Power Steering System (For Brushless Type Motor).

HINT
If DTCs are output, perform steps 1 and 2 two more times.

Result:





B -- END
A -- Continue to next step.

2. REPLACE POWER STEERING ECU ASSEMBLY

(a) Replace the power steering ECU assembly Removal.

NEXT -- Continue to next step.

3. CHECK FOR DTC

(a) Initialize the rotation angle sensor and calibrate the torque sensor zero point (step 1) Power Steering System (For Brushless Type Motor).

(b) Check for DTCs (step 2) Power Steering System (For Brushless Type Motor).

HINT
If DTCs are output, perform steps 1 and 2 two more times.

Result:





B -- REPLACE POWER STEERING MOTOR ASSEMBLY Disassembly

C -- END

A -- REPLACE ELECTRIC POWER STEERING
COLUMN SUB-ASSEMBLY Testing and Inspection