I have a 06 Dodge Ram 5.7 Hemi, and I was putting in a new stereo headunit when I came across some serious electrical issues. I had the battery disconnected while pulling the old radio and installing the new one. So the new stereo is in and I reconnect the battery, now I have the SERV 4wd, ABS, check engine, airbag light on the dash, and the truck is stuck in limp mode. Put the old radio back in and of course the damage was done, took it to the dealership and they don't know what the problem is. Help Please!

 

do you have a auto shift t case?

 

Yep, I do have the auto t case. It has 4wdlo, 4wd, 2wd, and neutral options, no auto 4wd.

 

perhaps you pinched or damaged the wiring for that when you had the dash apart

 

it's at th shop and they think it's the TIPM.