These DTCs do not indicate a malfunction. The power steering ECU stores these DTCs when it determines that the rotation angle sensor value
initialization and torque sensor zero point calibration are incomplete.
INSPECTION PROCEDURE
NOTICE:
If the power steering ECU and steering column assembly have been replaced, perform the rotation angle sensor initialization and
torque sensor zero point calibration See: Steering and Suspension/Steering/Testing and Inspection/Programming and
Relearning.
PROCEDURE
1. CLEAR DTC
(a) Clear the DTCs See: Steering and Suspension/Steering/Testing and Inspection/Reading and Clearing Diagnostic Trouble Codes.
NEXT -- Continue to next step.
2. INITIALIZE ROTATION ANGLE SENSOR AND CALIBRATE TORQUE SENSOR ZERO POINT
(a) Initialize the rotation angle sensor value and calibrate the torque sensor zero point See: Steering and Suspension/Steering/Testing
and Inspection/Programming and Relearning.
NEXT -- Continue to next step.
3. CHECK FOR DTC
(a) Check for DTCs See: Steering and Suspension/Steering/Testing and Inspection/Reading and Clearing Diagnostic Trouble Codes.
Result:
NOTICE:
If DTC C1516 or C1526 is output even though the rotation angle sensor value initialization and torque sensor zero point
calibration have been performed, confirm the procedure again, and perform the calibration and initialization 3 times.
HINT
Replace the power steering ECU if DTC C1516 or C1526 is still output after performing rotation angle sensor value initialization
and torque sensor zero point calibration 3 times.
B -- END
A -- Continue to next step.
4. REPLACE POWER STEERING ECU
(a) Replace the power steering ECU See: Relays and Modules/Relays and Modules - Steering and Suspension/Relays and Modules -
Steering/Steering Control Module/Service and Repair/Removal.
NEXT -- Continue to next step.
5. CLEAR DTC
(a) Clear the DTCs See: Steering and Suspension/Steering/Testing and Inspection/Reading and Clearing Diagnostic Trouble Codes.
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