Peugeot 308 automatic transmission selector position sensor
The automatic transmission selector position sensor (automatic transmission) in the Peugeot 308 is responsible for determining the position of the gear selector. It transmits this information to the automatic transmission’s electronic control unit (ECU), which then shifts the appropriate gear.
Sensor location
The automatic transmission selector position sensor is usually located next to the gear selector on the center console.
Signs of a faulty sensor
* Problems with gear shifting
* Unstable automatic transmission operation
* Gear position indicator flashes or is not displayed
* The automatic transmission warning light on the dashboard lights up
Diagnostics
To diagnose a faulty automatic transmission selector position sensor, you can perform the following steps:
* Check the sensor wiring and connectors for damage or corrosion.
* Use a diagnostic code scanner (OBD2) to read fault codes from the automatic transmission ECU.
* Check the sensor output using an oscilloscope or voltmeter.
Replacement
Replacing an automatic transmission selector position sensor is not a difficult task and can be done at home if you have basic car working skills.
Replacement Instructions
1. Disconnect the negative terminal of the battery.
2. Determine the location of the automatic transmission selector position sensor.
3. Disconnect the sensor connector.
4. Remove the mounting bolts or screws that hold the sensor in place.
5. Remove the old sensor and install the new one.
6. Tighten fasteners.
7. Connect the connector to the new sensor.
8. Connect the negative terminal of the battery.
After replacing the sensor, it is necessary to reset the automatic transmission adaptation using a diagnostic code scanner. This will allow the automatic transmission ECU to adjust to the new sensor.
Important Notes
* It is recommended to use an original automatic transmission selector position sensor or a high-quality equivalent.
* Before replacing the sensor, make sure that problems with the automatic transmission are not related to other faults, such as problems with the wiring or ECU.
* Calibration of the automatic transmission selector position sensor is not required if the original sensor is used.