STEERING WHEEL SENSOR CALIBRATION


caution After the next operation has been completed, carry out the following two operations:

  1. Update the neutral position stored in the steering wheel sensor.
  2. Reset the calibrated value of the steering angle stored in ASC-ECU.

  • Alignment adjustment <Front>
  • Steering wheel sensor (column switch assembly) replacement, removal, installation
  • ASC-ECU replacement
caution
  • Before performing the calibration, check if the steering wheel sensor-related diagnosis code is set in ASC-ECU.
  • When the diagnosis code other than C121A is set, carry out inspection according to each troubleshooting procedure.
1.Park the vehicle on a level surface with tyres and steering wheel positioned in a straight ahead direction.
2.
caution Before connecting or disconnecting M.U.T.-III, always turn the ignition switch to the LOCK (OFF) position.
Before setting M.U.T.-III, turn the ignition key to the LOCK (OFF) position.
3.Ignition switch: ON
4.Select "Steering angle sensor."
5.Select "Special function."
6.Select "Learn neutral position of steering angle sensor."
7.Select and run "Initialisation of steering angle sensor neutral position." (Reusable parts only)
note
  • Since the neutral position stored in the steering wheel sensor is no longer available, "Initialisation of steering angle sensor neutral position" is displayed.
  • Since a new steering wheel sensor has no neutral position, "Learn steering angle sensor neutral position" is displayed.
8.Select and run "Learn steering angle sensor neutral position."
9.Exit "Steering angle sensor" menu, and then select "ABS/ASC/ASTC."
10.Select "Special function."
11.Select "Learn neutral position of steering angle sensor."
12.Select and run "Steering wheel sensor calibration."
13.Check whether the ASC-ECU-related diagnosis code is set.
14.Erase the diagnosis code.
note Erase the diagnosis code C121A.
15.Before removing M.U.T.-III from the vehicle, turn the ignition key to the LOCK (OFF) position.