Automatic transmission oil pressure sensor
Part number: 7700100009
Application:
* BMW vehicles with automatic transmission
Function:
The automatic transmission oil pressure sensor measures the transmission fluid pressure and transmits this information to the vehicle’s electronic control unit (ECU). The ECU uses this information to manage fluid pressure and maintain optimal transmission performance.
Symptoms of malfunction:
* Automatic transmission fault warning light comes on
*Slipping or failure to shift gears
* Delay when switching on gear
* Noise or vibration when shifting gears
Causes of malfunction:
*Low transmission fluid level
* Contaminated transmission fluid
* Faulty oil pump
* Clogged or faulty filter
* Faulty electronic control unit (ECU)
Fault diagnosis:
To diagnose a faulty automatic transmission oil pressure sensor, you can perform the following steps:
* Check the level and condition of the transmission fluid
* Use a scanner to read fault codes from the electronic control unit (ECU)
*Check transmission fluid pressure using a pressure gauge
* Check the electrical connections between the sensor and the ECU
Replacing the automatic transmission oil pressure sensor:
If diagnostics have confirmed a malfunction of the automatic transmission oil pressure sensor, it must be replaced. To do this you need to do the following:
* Drain transmission fluid
* Remove the automatic transmission pan
* Disconnect the electrical connector of the sensor
* Unscrew the sensor and install a new one
* Install the automatic transmission pan
* Fill with new transmission fluid
* Clear fault codes from the ECU using a scanner
Important Notes:
* When replacing the automatic transmission oil pressure sensor, use only original spare parts or spare parts recommended by the manufacturer.
*Before installing a new sensor, make sure it is properly calibrated.
* After replacing the sensor, reset the automatic transmission adaptations using a scanner so that the transmission can correctly adapt to the new operating conditions.