Parked up last night locked the truck up with the keyless entry just like every night and everything worked fine. Came out this morning to go to work and keyless entry didnt work so unlocked the truck with the key get in and everything seems normal. Try to crank the truck and nothin happens voltage is good but warning lights on the guage cluster don't seem right like they normally cycle on and then off once the truck starts when it does start like its supposed to. Take the key out to get in my other vehicle open the door and nothin shuts off like its supposed to. All the guages, radio, and programmer all still have power. Only thing that looses power is the ac. Doors start unlocking over and over by themselves and truck starts dinging and then the alarm comes on and then goes off after about 30 seconds. (Not good at 4am with houses around and all down in hollow where everything echoes). Had to disconnect the batteries to get the doors to stop unlocking and radio and guages to shut off. Went to work in my other vehicle left the batteries disconnected all day stopped and got a new battery for the key and get home and still the same thing no keyless entry and still no start but the guages radio and programmer all come on except for the warning lights and all like it normally does. I'm resetting the programmer back to stock then uploading again to see if it helps anything. If anybody has any other ideas let me know. Checked all the fuses in the engine bay and they were all good. Only idea I have is bad ECM but don't know how it would fail just sitting in the driveway overnight and not touched. Sorry for the lengthy post just wanted to try to get everything in that happened. Any help appreciated.

 

You haven't filled out your signature nor told us what year truck you have....kinda hard to offer help when we have no idea what set up we are dealing with.

Obvious you have a 6.7 (from searching your old posts) but there are a couple different versions especially when we are talking electronics.

 

I just filled it out just figured out how too. Had it filled out somewhere else but it didn't show up in the post. It's the 2007.5 6.7 with full deletes and H&S mini Maxx jut in case the signature doesn't show up

 

Load test both your batteries. When one of them gets weird, gremlins come out to play.

-Guzzler

 

I didn't get to load test the batteries as soon as I got it to crank yesterday I took it to the dealership so the could fix it. Yesterday they said the ECM and PCM were good but they couldnt get through the tipem (dont know if i spelled that right) Which is what all the computers communicate through. Then today they said they were waiting on Chrysler to get back with them because they still had no clue what was wrong so its not sounding to good so far. Any other insight on what I'm dealing with. The dealership doesn't know and I dang sure don't have a clue