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Steering wheel sensor outputs the signal to ASC-ECU via the CAN bus lines.
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This diagnosis code is set if any malfunction below is found:
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- The tolerance of neutral position of steering wheel sensor exceeds the specified range.
- Abnormality in steering wheel sensor output value
- When abnormality is detected by comparing the value output from the steering wheel sensor with the one from the wheel speed sensor and the G and yaw rate sensor.
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- Improper installation of steering wheel sensor
- Wheel alignment not performed
- Steering wheel sensor malfunction
- Different steering wheel
- G and yaw rate sensor malfunction
- Malfunction of wheel speed sensor
- ASC-ECU malfunction
- External noise interference
- Wrong steering wheel is attached
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Use M.U.T.-III to diagnose the CAN bus lines.
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Q.
Is the check result normal?
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Repair the CAN bus lines (Refer to GROUP 54C - CAN Bus Diagnosis table ). On completion, go to Step 2.
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Q.
Is diagnosis code No.C1219 set?
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This diagnosis is complete.
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Check that the wheel speed sensor-related, G and yaw rate sensor-related, or steering wheel sensor-related diagnosis code is set.
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Q.
Is the diagnosis code set?
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Troubleshoot the relevant diagnosis code, and then go to Step 8.
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Check that the steering wheel sensor is installed correctly (Refer to ).
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Q.
Is the check result normal?
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Install the steering wheel sensor correctly (Refer to ), and then go to Step 5.
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Q.
Is the check result normal?
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After the wheel alignment check, perform the steering wheel sensor calibration to make ASC-ECU learn the neutral point again (Refer to ). Then go to Step 6.
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After the adjustment of the wheel alignment, perform the steering wheel sensor calibration to make ASC-ECU learn the neutral position again (Refer to ). Then go to Step 6.
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Check the following service data (Refer to ).
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- Item 11: Steering angle sensor
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Q.
Is the check result normal?
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After the steering wheel sensor is replaced, perform the steering wheel sensor calibration to make ASC-ECU learn the neutral point again (Refer to ). Then go to Step 8.
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Drive the vehicle at 20 km/h or more.
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Q.
Is diagnosis code No.C1219 set?
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Replace the ASC-ECU (Refer to ), and then go to Step 8.
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This diagnosis is complete.
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Drive the vehicle at 20 km/h or more.
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Q.
Is diagnosis code No.C1219 set?
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This diagnosis is complete.
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