P0521 CADILLAC – Engine Oil Pressure Sensor/Switch Circuit Range/Performance

 

P0521: DIY Repairing Video Tutorial

https://youtu.be/W9EL9QHCDMo

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

 

P0521 CADILLAC Possible Symptoms

  Engine Light ON (or Service Engine Soon Warning Light),Oil pressure warning light ON.  

P0521 CADILLAC Possible Causes

  Low oil level or motor mechanical fault,Faulty oil pressure sensor,Oil Pressure Sensor harness is open or shorted,Oil Pressure Sensor circuit poor electrical connection  

P0521 CADILLAC Description

  The PCM continuously monitors the engine oil pressure. The Oil Pressure Sensor/Switch sends a signal to the PCM when the engine is running.