Tipm keeps frying

[Jworking]

Okay, first time I caused it to go into limp mode, I fully extended the suspension, had check engine/transmission code ubc143 or whatever the generic code for engine and transmission issues is, it was almost 2 years ago sorry for forgetting. Second time I hit a large dip and fully extended my suspension again and it completely shut off,, electronic braking, abs and airbag warning is on and will not start, will not shift out of park. I replaced the tipm and PCM and truck ran perfect for 3 months. Driving down the road I went too fast over train tracks, fully extended the suspension, and fried the new tipm. Now I know I have a short some where. Drove it for a few weeks, as Im taking a left turn it burnt the PCM fuse, replaced it and it drove 30 miles back home. I hit 1good pothole (I live in MN our roads are bad) and it fried the tipm.again. I cannot find any obvious breaks in wires, loose grounds or something that looks like it would fry a lot of money. Does anyone have any ideas where I should start my next look?

 

[NJMOPAR]

There's a major electrical connector behind the rear of the left front wheelwell liner, check there.

 

[EdGs]

Make sure harnesses are clear of suspension components. They should be to begin with, but you never know.

 

[Jworking]

There's a major electrical connector behind the rear of the left front wheelwell liner, check there.

Pulled that back and it looks intact. The large plug on the frame looks fine. Did flip it over and had a pile of dirt and sand fall out of there. With how bad it crackles when I put the ground back on, I'd think it would be a visible issue with something grounded out. I did install an aftermarket radio with the controller that keeps the steering wheel functions. Can that directly blow a PCM fuse? And ultimately a internal relay on the tipm. Like I said it was fairly intermittent at first, being months in-between but now it lasted less than a day of in town driving.

 

[Jworking]

Maybe I'll throw another tipm at it....

 

[NJMOPAR]

First post didn't mention the aftermarket radio install.
If you had no problem before that it's a good idea to chase down every connection & ground associated with that job.

 

[Jeepwalker]

When you say it's 'blowing' the TIPM, are you having it checked by the supplier to see if it is INDEED failed? They can usually test them.

 

[Daw14]

Maybe adding some suspension travel limiting straps would help ,as this seems to be the common trigger . Also search for loose grounds .