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P0603 Diagnostic Trouble Code Discussion for October 2017

Control Module Long Term Memory Reset


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Trouble Ticket Help Requests for DTC P0603
Help Request Posted
2001 Ford F-250 Super Duty XL 7.3L Poor Idle Quality, Cuts out VIN: 1FTNF21F31
P0603: PCM Keep Alive Memory Test Error. ... given up on trying to repair. When we got it in the batteries were toast. replaced batteries and truck started, and idle rough. Pulled codes and got the p0603, and p0605. I cleared and the p0605 returned immediately. Needs a computer. Customer has a "b...
October 18, 2017