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After spending a few days fixing an oil leak, my battery died on me and I replaced it. I started the car and my cluster lit up like a christmas tree with about 12 codes. I cleared them all out and Ended up with abs codes and no comm codes. All the threads I read had me on a chase to narrow down the problem. I checked EVERYTHING (spent a week doing it). I finally gave up cause I did not want to spend 1200.00 on a new unit.
Today I was working on my intake and dropped a socket by my battery.
I took off the plastic shroud around the battery to reach it and Behold I found a small thin ground wire cut in half. I repaired it and voila, no more codes! Apparently, if you work on your battery and lean on and put pressure on the shroud it will break the ground wire for the ABS. The wire runs from under the fuse box to the ground point on the chassis.
Like I said, I hope this helps someone!
Do you have pictures or a diagram??? I am thinking mine is something similar because mine turn on after I hit a bump.
I'm sorry I didn't take a picture. Pull the plastic shroud out around the battery and fuse box and you will see several ground wires at the ground point. The thinnest wire is the one. Just make sure the contacts are clean and tighten the nut. Good luck 👍