Charging Problem On Gen IV

[AbsolutHank]

Sorry about that bad luck Paul. I'll have to file that one away in the old memory bank!

[AaronFL]

Glad you found the problem. I chased the problem around for 6 months before trying the PCM. I am curious what the main cause of these to fail like this are. Does anyone know if these can be reliably repaired? I've noticed some websites offer PCM repair.

[mjorgensen]

The PCM is very voltage sensitive so any weird charging attempt or jump starting can potentially affect it. There is also no way to "repair" the Mopar PCM and Mopar does not warranty any of their products. Sorry you are having the trouble.

[FLATOUT]

The PCM is very voltage sensitive so any weird charging attempt or jump starting can potentially affect it. There is also no way to "repair" the Mopar PCM and Mopar does not warranty any of their products. Sorry you are having the trouble.

Interesting, Paul I also never changed the battery or jump started the car with the stock ECU or the Mopar ECU.

[mjorgensen]

Interesting, Paul I also never changed the battery or jump started the car with the stock ECU or the Mopar ECU.

Did not mean to imply you did, just giving information from my experiences.

[AZTVR]

I would add that if the PCM is that vulnerable to outside voltage spikes/fluctuations, then an intermittent issue in the harness, battery, ground, alternator, etc, could possibly be the cause of the PCM failure also. Just conjecturing how a voltage spike might occur without a human intervention such as jump starting or disconnecting/reconnecting something while powered up.

[ACRucrazy]

Just saw this thread now, could the UDP have anything to do with it? The PCM voltage regulator circuit that is.

I know, wouldn't seem likely just thinking out loud.

[FLATOUT]

Just saw this thread now, could the UDP have anything to do with it? The PCM voltage regulator circuit that is.

I know, wouldn't seem likely just thinking out loud.

Don't think so compcoupes and the X's run the same pulley and similar PCM's. At least the X's do.