C1516

POWER ASSIST SYSTEMS: POWER STEERING SYSTEM: C1516, C1526: Torque Sensor Zero Point Adjustment Incomplete


DESCRIPTION

These DTCs do not indicate a malfunction. The power steering ECU assembly outputs these DTCs when it determines that rotation angle sensor value initialization and torque sensor zero point calibration are incomplete.





INSPECTION PROCEDURE

NOTICE:
If the steering column assembly or power steering ECU assembly has been replaced, perform rotation angle sensor value initialization and torque sensor zero point calibration Programming and Relearning.

PROCEDURE

1. CHECK FOR DTC

(a) Clear the DTCs (step 1) Reading and Clearing Diagnostic Trouble Codes.

(b) Initialize the rotation angle sensor value and calibrate the torque sensor zero point (step 2) Programming and Relearning.

(c) Check for DTCs (step 3) Reading and Clearing Diagnostic Trouble Codes.

HINT
If DTCs are output, perform steps 1 to 3 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) Clear the DTCs (step 1) Reading and Clearing Diagnostic Trouble Codes.

(b) Initialize the rotation angle sensor value and calibrate the torque sensor zero point (step 2) Programming and Relearning.

(c) Check for DTCs (step 3) Reading and Clearing Diagnostic Trouble Codes.

HINT
If DTCs are output, perform steps 1 to 3 two more times.

Result:





NOTICE:
If replacing the steering column assembly, clear the rotation angle sensor calibration value, initialize the rotation angle sensor value, and calibrate the torque sensor zero point Programming and Relearning.

B -- END

A -- REPLACE STEERING COLUMN ASSEMBLY Removal