Programming and Relearning

STEERING WHEEL SENSOR CALIBRATION

CAUTION
After the next operation has been completed, carry out the following two operations:
^ Front alignment
^ Steering wheel sensor (column switch assembly) replacement, removal and installation
^ ASC-ECU replacement

1. Revise the neutral point which the steering wheel sensor stores.
2. Reset the steering angle compensation value which the ASC-ECU stores.

CAUTION
^ Prior to calibration, check that no steering wheel sensor-related diagnostic trouble codes are set.
^ If diagnostic trouble codes other than C121A have set, proceed to the relevant troubleshootings.

1. Place the vehicle on a level surface with its road wheels in the straight ahead position.
2. Turn the ignition switch "LOCK" (OFF) position.

CAUTION
Before connecting or disconnecting the scan tool, turn the ignition switch to the "LOCK" (OFF) position.

3. Set the scan tool with the ignition at "LOCK" (OFF).
4. Turn the ignition switch "ON" position.
5. Select the relevant system from the menu.
6. Select "Steering angle sensor" from the system list in "System select", and press "OK" button.
7. Select "Special function" under "Steering angle sensor".
8. Select "SAS Calibration" under "Special function".

NOTE: If the steering angle sensor neutral point has been learned, the display will show "If SAS needs re-calibration, execute SAS calibration after executing SAS initialization". If yes, press "OK" button.

9. As "SAS initialization" is selected under "SAS Calibration", press "OK" button.

NOTE: At this time, if the steering angle sensor neutral point has been learned, the display will show "Do you want to start? Note This operation will dear DTCs". Then, press "OK" button.

10. The display should show "Completed." Press "OK" button.
11. Press the OK button.
12. The display should show "SAS Calibration: Do you want to start?". Then press the OK button.

NOTE: Please execute after making a tire and a steering wheel straight.

13. The display should show "Completed." Press "OK" button.
14. Turn the ignition switch to "LOCK" (OFF) position, and then turn the ignition switch ON again.
15. Select the relevant system from the menu.
16. Select "ABS/ASC/ASTC/WSS" from the system list under "System select", and press "OK" button.
17. Select "Special function" under "ABS/ASC/ASTC/WSS".
18. Select "Sensor calibration" under "Special function".
19. Select "SAS calibration" under "Sensor calibration", and press "OK" button.
20. The screen displays "SAS calibration: The selected command will be executed. Are you sure? Caution: Confirm the execution conditions." Then press "OK" button.
21. "Executed: The command was executed." will be shown. Then press "OK" button.
22. Select "Diagnostic trouble code" under "ABS/ASC/ASTC/WSS". If the diagnostic trouble code "C2205 SAS internal failure (past trouble)" is set, clear it.
23. Learning neutral point complete
24. Turn the ignition switch to "LOCK" (OFF) position and then disconnect the scan tool.