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Home >> Mazda >> 2011 >> CX-9 Touring, 3.7 V, AWD >> Repair and Diagnosis >> Engine Performance >> System >> On-Board Diagnostic - Engine Control System (3 Of 5) >> DTC P0603: Pcm Keep Alive Memory (KAM) Error >> Notes

DTC P0603: Pcm Keep Alive Memory (KAM) Error: Notes

DTC P0603 CHART (MZI-3.7)

DTC P0603 PCM keep alive memory (KAM) error
DETECTION CONDITION 
  • Indicates the PCM has experienced an internal memory concern. However, there are external items that can cause this DTC.
POSSIBLE CAUSE 
  • Battery terminal corrosion
  • Loose battery connection
  • Connector or terminal malfunction
  • Open circuit between battery positive terminal and PCM terminal 1 V
  • Reprogramming
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