Engine-Codes
 
OBDII Code List
 
P0521 CHEVROLET

P0521 CHEVROLET - Engine Oil Pressure Sensor/Switch Circuit Range/Performance

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3  What does this mean?

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
  • Tech notes

    There is a factory service bulletin for the following Chevrolet models:

    2010 Chevrolet Camaro SS
    2007-2010 Chevrolet Avalanche
    2007-2010 Chevrolet Silverado
    2007-2010 Chevrolet Suburban
    2007-2010 Chevrolet Tahoe
    2007-2009 Chevrolet Impala
    2005-2009 Chevrolet Trailblazer
    2007 Chevrolet Monte Carlo
    Chevrolet Factory Service Bulletin OBDII Code P0521

    When is the code detected?

    The P0521 is detected when the signal sent from oil pressure sensor to PCM goes out of range.

    Possible symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)
  • Oil pressure warning light ON.
  • P0521 Chevrolet 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.
    OBDII Code P0521 Chevrolet - Engine Oil Pressure Sensor/Switch Circuit Range/Performance - Engine-Codes.com

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