Steering Wheel Sensor Calibration

Required Special Tools:

MB992744: Vehicle communication interface-Lite (V.C.I.-Lite)
MB992745: V.C.I.-Lite main harness A
MB992747: V.C.I.-Lite USB cable short
MB992748: V.C.I.-Lite USB cable long
MB991958: Scan Tool (M.U.T.-III Sub Assembly)
- MB991824: Vehicles Communication Interface (V.C.I.)
- MB991827: M.U.T.-III USB Cable
- MB991910: M.U.T.-III Main Harness A (Vehicles with CAN communication system)

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

Update the neutral position stored in the steering wheel sensor.
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
Before performing the calibration, check if the steering wheel sensor-related diagnostic trouble code (DTC) is set in ASC-ECU.
When the DTC other than C1394 is set, carry out 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 ignition switch to the "ON" position.
Turn the ignition switch to the "LOCK" (OFF) position.
CAUTION: Before connecting or disconnecting scan tool, always turn the ignition switch to the "LOCK" (OFF) position.
Before setting scan tool, turn the ignition switch to the "LOCK" (OFF) position.
Turn the ignition switch to the "ON" position.
Select "Steering angle sensor."
Select "Special function."
Select "SAS Calibration."
Select and run "SAS Initialization." (Reusable parts only)
NOTE:
- Since the neutral position stored in the steering wheel sensor is no longer available, "SAS Initialization" is displayed.
- Since a new steering wheel sensor has no neutral position, "SAS Calibration" is displayed.
Select and run "SAS Calibration."
Exit "Steering angle sensor" menu, and then select "ABS/ASC/ASTC/WSS."
Select "Special function."
Select "Sensor calibration."
Select and run "SAS calibration."
Check whether the ASC-ECU-related DTC is set.
Erase the DTC.
NOTE: Erase the DTC C1394.
Before removing scan tool from the vehicle, turn the ignition switch to the "LOCK" (OFF) position.