Symptoms of P0603 OBD II Trouble Code
- Battery terminal corrosion or loose connections
- Keep Alive Power (KAPWR) circuit wire routing
- Open wire in the KAPWR circuit
- Damaged PCM, water intrusion / internal fault
- Charging system fault
- Ignition system fault causing secondary ignition voltage inference
- Internal PCM program fault
Common Causes of P0603 OBD II Trouble Code
- 2006 nissan frontier P0603Hi my Nissan truck stalled on me one day with code P0603. Still can run the engine with poor idle but, can't drive it due to poor idle problem, not enough power to drive the truck. I replaced all 6 spark plugs, cleaned the throttle body, check and cleaned all 6 fuel injectors and replaced both cra...
- p0603i have a 1996 ford powerstroke, and i am getting a p0603 internal ctrl mod kam error, what does this mean :?...
- Low boost with DTC P100, P0603 ,P1247Truck has been to several shops, and have added differant componates here and there. still no fix. i'm begining to thing its the ECM. Full throttle boosts only 10psi and it has a chip. Should boost over 15-20 psi
Thoughts?? :(...
- 99 Cadi deville northstar p0603Ecm has detected an electrical condition on driver module..... p0603...
- 2002 F250 7.3L P1273, P1280, P1293 & P0603 codesHave a 02 F250 with 7.3L diesel engine, turns over won't start scanner came up with the following codes- P1273 P1280, P1293 and P0603, have checked the fuel pump it's good, rebuilt return fuel pressure needle & seals, new fuel filter, new cam sensor, new ICP sensor, still won't start. HELP!!...
- P0603 and P0470 2001 7.3LI have had my check engine light come on for about 3 seconds and in that time there is no throttle. Then everything goes back to normal. Had a diagnostic show the PO603 and Po470 back pressure exhaust sensor which I know I have a 6in all the way out. The guy at the shop says I need a new ECM but the...
- 2012 Nissan code P0603Hello,
Yesterday my engine stalled and wouldn't restart. I called roadside service and he checked my battery. It was old and dead so he replaced it. In the diagnostic there were no other problems except the battery, the alternator was fine. The car started up right away and ran great.
As I d...
- 2001 F350 Super Duty 7.3L Diesel P1280 P0603I started experiencing a jerking in the power train accompanied by jerky drop in RPMs, may sputter for a bit then drive normal for a while. DTC codes 02-P1280 and 01-P0603. Found a site with an abbreviated description but can't find more detailed info as to what a resolution might be. Any help would...
- 97 cadi deville PCM codes p0603 and P1604Hi, this 4.6L cadillac runs good under light throttle. It runs rough under a load.misses and backfires but gets over it in a few seconds and runs good after that. I had no pcm code but after sitting awhile battery went dead and then picked up codes p0603 and p1604. Any suggestions? Will low fuel ...
- 04 Ford Excursion 6.0 Diesel P0603 P0381 P1000 P1379 cranks won't start6.0 ran fine when parked. Went to start after couple days and it only cranks sort of weak sounding. Changed batteries, tried to jump, changed starter, change fuel filter and still nothing.
Receiving these codes:
P0603 Internal Control Module Keep Alive Memory Malfunction
P0381 Glow Plug / He...