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P0603 Diagnostic Trouble Code Discussion for August 2007

Control Module Long Term Memory Reset


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Trouble Ticket Help Requests for DTC P0603
Help Request Posted
1997 Cadillac DeVille 4.6L No Start VIN: 166KD5ZY5V
P0603: PCM keep alive memory error/reset. I'm playin clean-up batter on this one. The other tech checked codes, replaced all in related repairs. I reset anti-theft, due to battery being replaced and cleaned grounds and powers. The cranks and runs for 3 seconds and dies and will do the same many times....
August 01, 2007
1997 Cadillac DeVille 4.6L No Start VIN: 166KD5ZY5V
P0603: PCM keep alive memory error/reset. I'm playin clean-up batter on this one. The other tech checked codes, replaced all in related repairs. I reset anti-theft, due to battery being replaced and cleaned grounds and powers. The cranks and runs for 3 seconds and dies and will do the same many times....
August 02, 2007