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41
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 memory is automatically cleared.
To reset the steering angle, 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.
DPF
The Diesel Particle Filter (DPF) function manages DPF
regeneration, DPF component replacement teach-in and DPF
teach-in after replacing the engine control unit.
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