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ALL SENSOR CALIBRATION (G AND YAW RATE SENSOR, STEERING WHEEL SENSOR, BRAKE FLUID PRESSURE SENSOR)
caution
  • Before carrying out the calibration, check that the DTC related to the steering wheel sensor, G and yaw rate sensor, or brake fluid pressure sensor is not set.
  • If a DTC other than C121A, C1392, C1393, or C2002 is output to the ASC-ECU, check it according to each troubleshooting.
cautionWhen the ASC-ECU has been replaced, carry out the calibration to make ASC-ECU learn the neutral point of all sensor (steering wheel sensor, G and yaw rate sensor, and brake fluid pressure sensor).
note"All sensor calibration" can perform calibration of G and yaw rate sensor, steering wheel sensor, and brake fluid pressure sensor collectively.
cautionPerform "Steering wheel sensor calibration" , carry out the following two operations:
  • Alignment adjustment <Front>
  • Column switch assembly (integrated with steering wheel sensor) replacement, removal, installation
cautionCarry out the calibration under the following conditions.
  • The vehicle has one occupant (driver) only.
  • Turn the steering wheel to set the wheels in the straight-ahead positions.
  • The brake pedal is not depressed. (The stoplight switch is OFF.)
1. Park the vehicle on a level surface.
2.
cautionBefore connecting or disconnecting the scan tool (M.U.T.-IIISE), turn the ignition switch to the "LOCK" (OFF) position.
Turn the ignition switch to the "LOCK" (OFF) position. Then connect the scan tool (M.U.T.-IIISE) to the data link connector.
3. Turn the ignition switch to the "ON" position.
4. Select "Steering angle sensor."
5. Select "Special function."
6. Select "SAS Calibration."
If replaced the steering wheel sensor (neutral point not learned) with a new one, go to Step 8.
noteThe learning status of steering wheel sensor neutral point can be confirmed by scan tool (M.U.T.-IIISE) data list "Item No. 23 Steering wheel sensor calibration state".
7. Select "SAS Initialization."
8. Select "SAS Calibration."
9. Exit the "Steering angle sensor" menu screen and select "ABS/ASC/ASTC/WSS."
10. Select "Special function."
11. Select "Sensor calibration."
12. Select "All sensor calibration."
13. Turn the ignition switch to the "LOCK" (OFF) position.
14. Turn the ignition switch to the "ON" position.
15. Check whether the DTC is set.
16. Turn ignition switch to the "LOCK" (OFF) position. Then disconnect the scan tool (M.U.T.-IIISE) to the data link connector.