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P0603 - Internal Control Module Keep Alive Memory (KAM) Error

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DTC DESCRIPTION P0603 - INTERNAL CONTROL MODULE KEEP ALIVE MEMORY (KAM) ERROR

Description:  This DTC sets when the PCM has experienced an internal memory concern. However, there are external items that can cause this DTC.
Possible Causes: 
  • Reprogramming
  • Battery terminal corrosion
  • KAPWR to PCM interrupt/open
  • Incorrect battery connection
Diagnostic Aids:  If KAPWR is interrupted to the PCM because of a battery or PCM disconnect, this DTC can be generated on the first power-up.
Application  Key On Engine Off  Key On Engine Running  Continuous Memory 
All GO to Pinpoint Test QB .