Dodge Repair Questions? Ask a Mechanic for Answers ASAP
what engine is in this?
Which Hemi, 5.7 or 6.1? Anyhow, it could be The Electronic Voltage Regulator, a voltage regulating circuit located within the Powertrain Control Module (PCM). The EVR is not serviced separately. If replacement is necessary, the PCM must be replaced.
have you had the codes retrieved?
The Powertrain Control Module (PCM) monitors critical input and output circuits of the charging system, making sure they are operational. A Diagnostic Trouble Code (DTC) is assigned to each input and output circuit monitored by the On-Board Diagnostic (OBD) system.
There may be a code set, so that should be the next step.
If you have battery voltage (12 volts) present at the B+ terminal on the back of the alternator with the key of, about the only thing that could be wrong is the voltage regulator.
It's a very simple wiring diagram,
I would check for voltage at that B+ terminal on the back of the alternator. If there is battery voltage there while the engine is running and reved up then the alternator isn't charging at it's most likely the voltage regulator within the pcm, but if there is more than 14 volts at B+ but only 12 volts at the battery positive post, then that cable between the B+ and battery post is bad.
If there is no battery voltage at B+ when the key is off, than that fusible link is burnt/bad.
If it turns out to be the pcm, then it will most likely need to be reprogrammed or flashed, before or after installing it.
Are you still there? You are not saying anything.
Anyhow, I believe I am done here. I am going outside to work on my truck now, so I will remind you JustAnswer® is not a free service. I work hard to make sure you're satisfied with my service and I only get credit for my answers based on your rating. Once you're satisfied, please leave a positive rating.
If it's the pcm, yes, but not if it's only a loose connection, burnt fusible link, etc.
If you want, I will check back with you when I come back in. Before than, let me know what voltage you have at the back of that alternator B+ terminal with the key off and key on, running at 2,000 rpm. Also, if you can retrieve the codes, do so.
Did you ever do that?