DTC C1515: Torque Sensor Zero Point Adjustment Undone; DTC C1516: Torque Sensor Zero Point Adjustment Incomplete: Description

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 have not been performed.

DTC Code	DTC Detection Condition	Trouble Area
C1515	Torque sensor zero point calibration has not been performed.	There is no malfunction if this DTC is not output again after performing torque sensor zero point calibration.
C1516	Torque sensor zero point calibration is incomplete due to the steering wheel being touched during calibration.	There is no malfunction if this DTC is not output again after clearing the DTCs and torque sensor calibration value, and performing zero point calibration.