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Code P0603 indicates a malfunction in the Engine Control Module (ECM) or Powertrain Control Module (PCM), specifically related to the internal control module memory. This failure can be due to issues such as electrical problems, software corruption, or hardware malfunctions within the module itself. It often results in poor engine performance or drivability issues. To resolve this code, it may require reprogramming or replacing the ECM/PCM.
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P0603 Internal control module keep alive memory FOR POWERSTROKE DIESEL?
I had a similar problem a few days ago. I had to replace my inline fuel pump located on the frame, below where the driver sits. I then replaced my fuel filter and air filter. it still shook horribly. Just keep driving it to get all the air out. Also check for water in the fuel. Coincindentally i was getting a P0603 code along with a battery light. I had a bad alternator. Go to a real mech shop for a diagnosis. _zone said my alt was good when it was really bad. Good Luck
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What does Trouble code P0603 mean?
Trouble code P0603 means:Internal control module keep alive memory (KAM) error
What does the code p0603 mean in a 1996 powerstroke?
Trouble code P0603 means:Internal control module keep alive memory (KAM) error
What does DTC P0603 for a PS Diesel mean?
Trouble code P0603 means: Powertrain Control Module Keep Alive Memory (KAM) Error
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P0603 Internal control module keep alive memory FOR POWERSTROKE DIESEL?
I had a similar problem a few days ago. I had to replace my inline fuel pump located on the frame, below where the driver sits. I then replaced my fuel filter and air filter. it still shook horribly. Just keep driving it to get all the air out. Also check for water in the fuel. Coincindentally i was getting a P0603 code along with a battery light. I had a bad alternator. Go to a real mech shop for a diagnosis. _zone said my alt was good when it was really bad. Good Luck
