Engine-Codes
 
OBDII Code List
 
P0604 CHEVROLET

P0604 CHEVROLET - Control Module Random Access Memory

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

Possible causes

  • Faulty Powertrain Control Module (PCM)
  • PCM harness is open or shorted
  • PCM circuit poor electrical connection
  • PCM Programming
  • Tech notes

    Check the Powertrain Control Module (PCM) fuse, if fuse is OK try erasing the code first and if the code comes back you may have to reprogram or replaced the PCM.

    When is the code detected?

    Indicates the Powertrain Control Module (PCM) has experienced an internal memory fault.

    Possible symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)
  • Engine may not start
  • P0604 Chevrolet Description

    The Powertrain Control Module (PCM) performs an internal self-test on it's Random Access Memory (RAM) or read/write memory. If this self-test fails, the P0604 code will set.
    OBDII Code P0604 Chevrolet - Control Module Random Access Memory - Engine-Codes.com

    Related Information

    Repair Importance Level: 3
     
    1=Low 2=Medium 3=High  
    Repair Difficulty Level: 3
     
    1=Easy 2=Moderate 3=Hard  

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