Techmass

I’ve been rebuilding a 13 G63, put in a new rear differential. New wheels, brakes. Ran no issues. I sent it to body shop to repair rear left quarter panel, and install body kit. Now the truck cranks but won’t run. No power to seats, windows, radio/display. Srs malfunction. Won’t read main ecm says no communication, and a c114 code. I’m sure it’s electrical but can find source. Any info or guide to what to do before tow to dealer? I’ve sunk so much in this build it’s driving me nuts! Thanks

chassis

What work was involved with the “body kit”?

Techmass

front/rear bumper, hood, flares. Nothing crazy and didn’t even install yet. Quarter was repair painted and tail gate removed then this started happening.

chassis

If it ran before the body shop touched it and doesn’t run after the body shop touched it, I would look to the body shop to fix the car.

Techmass

I found a post from a few years ago someone ran into similar issues, and they said they found loose wires/spliced connectors under driver seat and by rails. I will have that checked out and update here.