Automatic transmission selector position sensor for Volkswagen Touareg
Purpose:
The automatic transmission selector position sensor detects the position of the gearshift lever and transmits this information to the transmission control module (TCM). This is necessary for proper operation of the transmission, including gear shifting, park mode, neutral position, etc.
Location:
The automatic transmission selector position sensor is usually located on the gear shift lever itself or next to it.
Working principle:
The automatic transmission selector position sensor uses various technologies to determine the position of the selector, such as:
* Mechanical: The gear shift lever physically interacts with a sensor that generates an electrical signal corresponding to the position of the lever.
* Electrical: The sensor contains a set of switches or potentiometers that close or change resistance depending on the position of the lever.
* Electronic: The sensor uses electronic components to detect the position of the lever and transmit the data digitally to the TCM.
Symptoms of a malfunction of the automatic transmission selector position sensor:
* Difficulty shifting gears
*Transmission does not shift to desired gear
*Transmission gets stuck in one gear
* The gear shift position indicator on the instrument panel shows an incorrect position
*Car will not start or will not release the parking brake
Diagnostics:
Diagnostics of the automatic transmission selector position sensor usually includes checking:
* Electrical circuit sensor
* Resistance or signal sensor
*Physical condition of the sensor and gear lever
Replacement:
In the event of a malfunction, the automatic transmission selector position sensor must be replaced. Replacement usually requires removing the center console or shift lever.
Notes:
* Make sure the sensor is compatible with your Volkswagen Touareg model and year of manufacture.
*When replacing a sensor, the TCM must be reset or reprogrammed for proper transmission operation.
* It is highly recommended that you have your transmission shift position sensor replaced by a qualified mechanic.