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How to do G sensor calibration/steering angle sensor(SAS) calibration via  Launch X431 PAD V automotive scan tool? This is working on a 2017 Subaru Forester as an example, the same goes for X-431 PAD VII Diagnostic Tool . Ensure No DTC Local diagnose >> Subaru >> Asia and Pacific >> Forester >> 2017 >> Read fault code No trouble. Ensure Function is On Read data stream >> Steering angle sensor, Longitudinal G sensor Make sure the sensor is working. SAS Reset Special function >> VSC(VDC) centering mode VDC Sensor Midpoint Setting Mode is used to calibrate the zero point of the steering angle and lateral G sensors. Stop the vehicle on a level surface in a straight-ahead state. Press “OK”. VDC sensor midpoint setting mode has been successfully completed. Go back data stream to read the steering angle sensor again. Its value has changed to zero. Done! It may help: Solved BMW SAS 48000F Error

  【 X-431 PAD V Online Programming】Benz S350 221Chassis Car door Control Module Online Programming operation method. If you want to know more about X431 , please click here: How to use launch X431 . Actual Measurement: Benz S350，2005，VIN=WDDNG56X95A0*****，see pic1； Function Description: 1.When replaced the new car door control unit module , need to execute this function. 2.When car door control unit cannot use normally, Maybe need to execute this function. 3.When updating and upgrading the car door control unit, need to execute this function. Note: 1.Before executing this function, need to make sure the vehicle battery voltage not less than 12Vand the device electrical quantity is adequate. When executing programming ,device should connect internet. 2.When executing this function ,do not abnormally interrupted .Otherwise, it will cause car door control unit not be used and some serve consequence. 3.Please do not ignore any prompts when coding. Operation Procedure:...