Steering Wheel Sensor Calibration
CAUTION:
After the next operation has been completed, carry out the following two operations:
- Alignment adjustment < Front >
- Steering wheel sensor (column switch assembly) replacement, removal, installation
- Update the neutral position stored in the steering wheel sensor.
- Reset the calibrated value of the steering angle stored in ASC-ECU.
CAUTION:
- Before performing the calibration, check if the steering wheel sensor-related DTC is set in ASC-ECU.
- When the DTC other than C1394 is set, carry out the inspection according to each troubleshooting procedure.
- Park the vehicle on a level surface with tires and steering wheel positioned in a straight ahead direction.
- Turn the electric motor switch to the "ON" position.
- Turn the electric motor switch to the "LOCK" (OFF) position.CAUTION: Before connecting or disconnecting scan tool, always turn the electric motor switch to the LOCK (OFF) position.
- Check that the electric motor switch is in the "LOCK" (OFF) position, and then set scan tool.
- Turn the electric motor switch to the "ON" position.
- On the Menu, select "System selection."
- In "System table" of "System selection," select "Steering angle sensor," and then press the "OK" button.
- In "Steering angle sensor," select "Special function."
- In "Special function," select "Learn neutral position of steering angle sensor."NOTE: When the neutral position of steering angle sensor has been learned, "Neutral position learned already: in order to relearn the neutral position, press the "OK" button to initialize the steering angle sensor neutral position." is displayed. If it is okay, press the "OK" button.
- In "Learn neutral position of steering angle sensor," "Initialize neutral position of steering angle sensor" is selected, thus press the "OK" button.NOTE: When the neutral position of steering angle sensor has been learned, "Initialize neutral position of steering angle sensor: Do you want to execute? Note: The DTC will be erased." is displayed. Then, press the "OK" button.
- "Initialize neutral position of steering angle sensor: Completed" is displayed. Then, press the "OK" button.
- Press the "OK" button.
- "Learn neutral position of steering angle sensor: Do you want to execute? Note: Execute after the tires and steering wheel are aligned in a straight ahead direction." is displayed. Then, press the "OK" button.
- "Learn neutral position of steering angle sensor: Completed" is displayed. Then, press the "OK" button.
- After turning the electric motor switch to "LOCK" (OFF) position, turn it to the "ON" position again.
- On the Menu, select "System selection."
- On the "System selection," select "ABS/ASC/ASTC" in the "System table," and then click the "OK" button.
- In the "ABS/ASC/ASTC" field, select "Special function".
- In the "Special function," select "Learn sensor neutral position."
- In "Learn sensor neutral position," select "Learn neutral position of steering angle sensor," and then press the "OK" button.
- "Learn neutral position of steering angle sensor: Are you sure to execute the selected item? Note: Check the execution conditions." is displayed. Then, press the "OK" button.
- "Execute command: Executed" is displayed. Then, press the "OK" button.
- The neutral point is learned.
- Turn the electric motor switch to the "LOCK" (OFF) position, and remove scan tool from the vehicle.