Help with trouble code

[yjay]

Driving down the freeway today, I reset my overhead mileage thing and about 5 minutes later I looked up and the display read ccd. I pulled up the trouble codes on my Edge monitor and it had a code (P2503 I believe) that said charging system output low and also a companion code. On my monitor it said 14 volts, so I cleared the codes. On the return trip it did the same thing. What's the deal? 14 volts should be plenty shouldn't it?

 

[hydroshok]

Probably a bad ground. Mine did that when I swapped the 12 valve in. I had a few loose grounds so I cleaned and tightened all of them. It's been fine ever since.

 

[yjay]

Pardon my ignorance, but where do I look for these potential loose grounds?

 

[hydroshok]

Two on the block coming from the batteries, one up front on the driver's side fender, there are some on the firewall and I'm sure more I'm not remembering. I relocated my ECM to the pass side and I think there was one in that wiring harness. You can check your alt connections too.

 

[yjay]

Cool. Thanks a lot.

 

[hydroshok]

No problem. I hope that fixes it for you.

 

[Mopar1973Man]

I can tell you PCM, ECM and VP44 use the battery cable gorunds there is no body gorund for these 3 devices.
http://articles.mopar1973man.com/2nd-generation-24v-dodge-cummins/26-engine-systems/87-dodge-ram-turbo-cummins-24-valve-engine-wiring

As for the Error Code. I think you mean...

http://articles.mopar1973man.com/2nd-generation-24v-dodge-cummins/59-obdii-error-codes/197-p0562-charging-system-voltage-too-low

http://articles.mopar1973man.com/2nd-generation-24v-dodge-cummins/59-obdii-error-codes/224-p1682-charging-system-voltage-too-low