If there is any problem in the CAN bus lines, an incorrect DTC may be set. Prior to this diagnosis, diagnose the CAN bus lines (Refer to GROUP 54C, CAN Bus Diagnostics Table ).
Whenever ECU is replaced, ensure that the CAN bus lines are normal.
OPERATION
By executing the calibration of the torque sensor, the EPS-ECU learns the neutral position of the torque sensor.
FUNCTION
When the EPS-ECU determines that the torque sensor neutral position (zero point correction value) is abnormal.
TROUBLE JUDGMENT
Check Conditions
Engine start
Judgment Criterion
When an abnormal learning is performed at the torque sensor neutral position (zero point correction value).
Fail Safe, Back Up Function
The EPS-ECU stops the motor control and illuminates the electric power steering warning display, then sets the DTC No. C1519.
TROUBLESHOOTING HINTS
The calibration did not complete normally.
DIAGNOSIS
1. Re-perform torque sensor calibration (Refer to ).
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