33
5. Enter the
Exit maintenance mode
menu and wait until the message
of ‘‘
Successful operation
’ popes up.
5.3 SAS
Steering Angle Sensors (SAS) System Calibration permanently stores the
current steering wheel position as the straight-ahead position in the SAS
EEPROM. Therefore, the front wheels and the steering wheel must be set
exactly to the straight-ahead position before calibration. In addition, the
VIN is also read from the instrument cluster and stored permanently in the
SAS EEPROM. On successful completion of calibration, the SAS fault
codes will be automatically cleared.
To reset the steering angle, you need to first find the relative zero point
position for the car to drive in a straight line. Taking this position as a
reference, the ECU can calculate the accurate angle for left and right
steering.
After replacing the steering angle position sensor, replacing steering
mechanical parts (such as steering gearbox, steering column, end tie rod,
steering knuckle), performing four-wheel alignment, or recovering the car
body, you must reset the steering angle.
The operation guidelines of the SAS function are shown below:
1. Enter the
SAS
menu and choose relevant models according to the
vehicle being tested.
2. Enter the
Set steering angle sensor
menu and follow the
instructions displayed.
