Hello, I have recently encountered a strange issue. After locking my series ii, it will lock itself over and over every 30 seconds until the battery goes dead. I have disconnected the radio frequency receiver and the driver's door key lock to no avail. I found water ingress inside the BCM and cleaned it. That didn't fix the issue. I don't know where to go from there other than to disconnect connector C0480 to see if the issue persists. If anyone has any ideas to fix this issue, please let me know.

 

Water in the BCM doesn’t sound good. I had that same door locking issue on my 01 Dakota, which turned out to be the Central Timer Unit (Dodge’s equivalent to the BCM.)

 

BCMs don't like water. Just cleaning them doesn't seem to always be effective at remediating the issues that arise. Sounds like a replacement is in order, which I think also means replacing the instrument cluster and the ECU as well.

 

Thanks y'all. I figured cleaning the BCM wouldn't fix anything. I'm going to poke around in connectors but ultimately have to replace the BCM and instrument cluster and ECU if I recall correctly.