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P0603 Diagnostic Trouble Code Discussion for September 2005

Control Module Long Term Memory Reset

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Trouble Ticket Help Requests for DTC P0603
Help Request Posted
1996 Ford F-250 XL 7.3L Stall, Misfire, MIL Lamp on VIN: 1FTHX26F7T
P0603: PCM Keep Alive Memory Test Error. Truck came in running rough, Found melted front right harness connector going into valve cover, replaced valve cover and installed complete used harness. Truck runs fine then just starts cutting out bareley runs and will stall. Service engine light comes on wh...
September 07, 2005