Designation:
* 11 71 738
* 93180292
* 5605367
Location:
* The selector position sensor is located on the automatic transmission selector housing, next to the gear shift knob.
Design:
* The sensor is a compact device consisting of:
* Housings
* Electrical contacts
* Potentiometer
* Return springs
Working principle:
* When the shift knob moves, the linkage associated with the sensor moves with it.
* The thrust mechanically acts on the potentiometer, changing its resistance.
* The change in resistance sends a signal to the engine control unit (ECU), which determines the position of the automatic transmission selector.
Functions:
The automatic transmission selector position sensor performs the following functions:
* Determines the current position of the automatic transmission selector.
* Provides information to the ECU about the selected gear.
* Controls the engine starting mode (automatic start vehicles only).
Signs of malfunction:
* Inability to change gears
* Incorrect indication of selector position on the dashboard
* Engine starting problems (for cars with automatic start)