Active Stability Control System (ASC)

G AND YAW RATE SENSOR CALIBRATION

CAUTION:
Before performing calibration, check that the G and yaw rate sensor-related diagnostic trouble code is not set.

CAUTION:
After the next operation has been completed, carry out the calibration to make ASC-ECU learn the neutral position of the G and yaw rate sensor.

- G and yaw rate sensor replacement
- ASC-ECU replacement

[Vehicles without TC-SST]

1. Park the vehicle on a level surface.

2.
CAUTION:
Before connecting or disconnecting the scan tool, turn the ignition switch to the "LOCK" (OFF) position.

Set the scan tool with the ignition "LOCK" (OFF).

3. Turn the ignition switch to the ON position.

4. Select the relevant system from the menu.

5. Select "ABS/ASC/ASTC/WSS" from the system lists in "System select", and press "OK" button.

6. Select "Special function" in "ABS/ASC/ASTC/WSS".

7. Select "Sensor calibration" in "Special function".

8. Select "G sensor calibration" from the selected item, and press "OK" button.

9. The screen displays "G sensor calibration: The selected command will be executed.
Are you sure? Caution: Please check the execution conditions." Then press "OK" button.

10. "Execute: The command was executed." will be shown. Then press "OK" button.

11. Select "Lateral G sensor calibration" from the selected item, and press "OK" button.

12. The screen displays "Lateral G sensor calibration: The selected command will be executed.
Are you sure? Caution: Please check execution conditions." Then press "OK" button.

13. "Executed: The command was executed." will be shown. Then press "OK" button.

14. Learning neutral point complete

15. Turn the ignition switch to "LOCK" (OFF) position and then disconnect the scan tool.

[Vehicles with TC-SST (when the G and yaw rate sensor is replaced)]

1. Carry out steps 1 to 13 of the G and yaw rate sensor calibration for vehicles without TC-SST.

2. Select the relevant system from the menu.

3. Select "ACD/AYC" from the system lists in "System select", and press "OK"
button.

4. Select "Special function" in "ACD/AYC".

5. Select "Sensor calibration" in "Special function".

6. Select "Lateral G sensor calibration" from the selected item, and press "OK" button.

7. The screen displays "Lateral G sensor calibration: The selected command will be executed.
Are you sure? Caution: Please check the execution conditions." Then press "OK" button.

8. "Execute: The command was executed." will be shown. Then press "OK" button.

9. Select "Longitudinal G SNS. calibration" from the selected item, and press "OK" button.

10. The screen displays "Longitudinal G SNS. calibration: The selected command will be executed. Are you sure? Caution: Please check execution conditions." Then press "OK" button.

11. "Executed: The command was executed." will be shown. Then press "OK" button.

12. Learning neutral point complete

13. Turn the ignition switch to "LOCK" (OFF) position and then disconnect the scan tool.