Originally Posted By: eljefino
Pretty sure these cars use the ECM as the external regulator. ECM should be complaining about the low voltage. Codes can be pulled turning key on-off-on-off-on.
Might be dandy rigging up a $10 solid state regulator for, say, a 70's dart, either permanently or as a diagnostic aid.
Dodge had been doing externally regulated charging for quite some time, using the pcm to adjust the alternator output.
The key dance to pull codes works on the OBD-II equipped Treps but I don't now if you can do it with a '95. I know the 2nd gen Intrepids it worked on (1998-2004), but don't know about any of the 1st gens, and I definately don't don't know about an OBD-I 1995 model. if you want a good source of Intrepid info, go to dodgeintrepid.net. I have not been on in a few years so no idea how the site is these days, but when I was over there, it always was a very informative place.
The ECM will log a code, but you would never know it until you look for it. Might have lit the battery light on the dash telling you there is a charging circuit issue. could be a loose belt, could be the alternator itself is failing. Possible the regulator in the ecm is bad but that's probably the last thing I would figure would go.