Battery charging problem

Tiny
AVIONICS EAGLE
  • MEMBER
  • 2014 DODGE CARAVAN
  • 3.6L
  • 157,000 MILES
I had the alternator tested, it produced 14Vdc. I checked the wiring from the alternator to the PCM and didn't find a problem. I have replaced the battery, alternator and the PCM. I can't find the right circuit diagrams for the charging system on this vehicle. Thanks for your help.
Saturday, November 14th, 2020 AT 11:59 AM

1 Reply

Tiny
KASEKENNY
  • MECHANIC
  • 18,907 POSTS
Here is the wiring diagram for this vehicle's charging system. What exactly is happening? I can assume the vehicle is not charging but are you testing the charging system when the engine is running? If so, what is the voltage?

I have seen an issue with the generator sense wire or the field control wire. I assume you tested the sense wire but the field control more then likely has resistance in it and that is causing the lack of charging.

Let us know what issues you are having and we can work through this. Thanks
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Saturday, November 14th, 2020 AT 5:02 PM

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