P0721 BMW – Output Speed Sensor Range/Performance

 

P0721: DIY Repairing Video Tutorial

https://youtu.be/6kBRV5mRoX0

Check out nonda Auto DIY Center for more engine error code repairing videos.
https://www.youtube.com/playlist?list=PL-Lyko0O0oxHe1AGvzwAz-wokJPXAtW97

 

P0721 BMW Possible Symptoms

  Engine Light ON (or Service Engine Soon Warning Light),Speedometer improper reading,Possible shifting problems  

P0721 BMW Possible Causes

  Faulty Speed Sensor,Speed Sensor harness is open or shorted,Speed Sensor circuit poor electrical connection  

P0721 BMW Description

  The speed sensor detects the revolution of the idler gear parking pawl lock gear and emits a pulse signal. The pulse signal is sent to the Transmission Control Module (TCM) which converts it into vehicle speed.