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P0603 Diagnostic Trouble Code Discussion for October 2009

Control Module Long Term Memory Reset

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Trouble Ticket Help Requests for DTC P0603
Help Request Posted
2002 Ford F-350 Super Duty Lariat 7.3L Hesitation, Cuts out, MIL Lamp on, VIN: 1FTSW31FX2
P0603: PCM Keep Alive Memory Test Error. Truck arrived on hook with no Cluster, No 4x4, No throttle Responce, Approx 14 codes stored in the different onboard modules. ( A few listed Above) Found no 12 Volts to APP, AUx Power train Module, 4x4 module, INstrument Cluster, Overdrive Cancel switch. Fuse ...
October 09, 2009
2000 Ford F-250 Super Duty XL 7.3L Stall VIN: 1FTNX21F8Y
P0603: PCM Keep Alive Memory Test Error. Howdy boys n girls, This truck has been to several other shops for intermittent stalling, supposedly had the instrument panel fuse box and pcm replaced. I checked it out and if you tap on the pcm it stalls, it will start right back up, I was looking the harnes...
October 14, 2009