Steering Angle Sensor Reset

    The steering angle sensor (SAS) is a critical part of the ESC (Electronic Stability Control) system that measures the steering wheel position angle and rate of turn. A scan tool can be used to obtain this data in degrees.

    Many vehicles require the SAS be reset or recalibrated after an alignment is performed or parts in the steering system are replaced. If the SAS is out of calibration, most vehicles can tell if they are traveling in a straight line, but if the angle is too far off, the ESC could become disabled. If the steering angle sensor is not reset, the ESC system will be disabled and some warning lights will appear on the dashboard. ABS, Traction Control, Stability Control and other systems may be disabled. After an alignment is performed on a vehicle equipped with a Steering Angle Sensor, it is required by the manufacturer to reset the system.

* Steering Angle Sensor Reset is not optional. If car requires it, it MUST be performed.

* Most cars from 2008 and up have SAS. Some cars before 2008 still have it. If car does not have ABS (Anti-Lock Braking System), it will not have ESC.

* For ESC (Electronic Stability Control), different manufacturers use different names, such as ASC, DSC, ESP, PSM, VDC, VSA, VSC, etc.