Join Date: May 2004
Location: Anchorage, Alaska
Feedback Score: 0 reviews
Re: Code P0603
PO603= PCM Keep Alive Memory. You will normally get this code when disconecting batteries or removing and installing a chip or programer, because your temporarily disconnecting power to the PCM.
I wouldn,t worry about it.
2004 F-350 Lariat, Supercab 4X4 FX4, DRW
Dark Toreador Red/Silver, 6.0L, Torqueshift Auto, ESOF, 4.10 LS, Camper Package, Dual Alternators. Build Date 6-8-04, Eng 5-28-04, Lance 9.5 Ft Camper.
Past 2002 F-350 Lariat, Supercab 4X4, Toreador
Red, 7.3L, Auto, DRW, Fully Loaded.
Past 94.5 F-250 Lariat, Supercab 4X4, 5 spd 7.3L PSD.