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DTC C1219: Steering angle sensor signal
 
 
caution
  • Whenever the steering wheel sensor is replaced, always calibrate the sensor (Refer to GROUP 35C - Steering Wheel Calibration ). Then make the steering wheel sensor learn the compensation which the PHEV-ECU has stored (Item: Initialization, Item No. 3: Steering Angle Offset Reset ).
  • When the hydraulic unit (integrated with ASC-ECU) is replaced, after vehicle information from ETACS-ECU is registered (power supply mode of the electric motor switch: OFF from ON), always carry out the calibration of all sensors (steering wheel sensor, G and yaw rate sensor, and brake fluid pressure sensor) at one time (Refer to GROUP 35C - All Sensor Calibration ).
  • Whenever ECU is replaced, ensure that the CAN bus lines are normal.
 
 
DTC SET CONDITIONS
The PHEV-ECU sets DTC C1219 when the steering wheel sensor signal fails.
 
 
 
PROBABLE CAUSES
  • Improper installation of steering wheel sensor.
  • Malfunction of the wheel speed sensor.
  • Malfunction of the G sensor has not been learned.
  • Malfunction of the ASC-ECU.
  • Wheel alignment not performed.
  • Different steering wheel.
  • Malfunction of the wheel speed sensor.
  • Malfunction of the PHEV-ECU.
  • The straight-forward position of the front wheels does not correspond to the neutral position of the steering wheel.
 
 

 
 
DIAGNOSIS
STEP 1. Using scan tool (M.U.T.-IIISE), check whether the other DTC is set.
Check whether the ASC-ECU related DTC is set or not (Refer to GROUP 35C - Diagnostic Trouble Code Chart ).
Is the DTC set?
Troubleshoot for the relevant DTC.
Go to Step 2.
 
STEP 2. Using scan tool (M.U.T.-IIISE), check whether the other DTC is set.
Check whether the wheel speed sensor-related, G and yaw rate sensor-related, or steering wheel sensor-related DTC is set (Refer to ).
Is the DTC set?
Troubleshoot the relevant DTC.
Go to Step 3.
 
STEP 3. Check how steering wheel sensor is installed.
Check that the steering wheel sensor is installed correctly (Refer to GROUP 35C - Steering Wheel Sensor ).
Is the check result normal?
Go to Step 4.
Install the steering wheel sensor correctly, and then go to Step 4.
 
STEP 4. Wheel alignment check.
Is the check result normal?
After the wheel alignment check, perform the steering wheel sensor calibration to make ASC-ECU learn the neutral point again (Refer to GROUP 35C - Steering Wheel Calibration ) and make the steering wheel sensor learn the compensation which the PHEV-ECU has stored (Item: Initialization, Item No. 3: Steering Angle offset reset ). Then go to Step 5.
After the adjustment of the wheel alignment, perform the steering wheel sensor calibration to make ASC-ECU learn the neutral position again (Refer to GROUP 35C - Steering Wheel Calibration ) and make the steering wheel sensor learn the compensation which the PHEV-ECU has stored (Item: Initialization, Item No. 3: Steering Angle offset reset ). Then go to Step 5.
 
STEP 5. Using scan tool (M.U.T.-IIISE), check the data list. <PHEV-ECU>
Refer to .
  • Item No.333: Steering angle
Is the check result normal?
Go to Step 6.
Replace the Steering wheel sensor (Refer to GROUP 35C - Steering Wheel Sensor ). Then go to Step 6.
 
STEP 6. Using scan tool (M.U.T.-IIISE), check whether the DTC is set again.
Recheck the DTC.
(1) Erase the DTC.
(2) Turn off the power supply mode of the electric motor switch.
(3) Turn on the power supply mode of the electric motor switch.
(4) Check the DTC.
Is the DTC set?
Replace the PHEV-ECU (Refer to ).
The procedure is complete.