My Serv 4wd light came on and when I put the jeep into 4H or 4L those lights would flash. Seems like it is not engaged. Only code it is producing is U0010 “Medium Speed CAN Comm Bus” which I do not think it has anything to do with the 4wd drive. I think, it is due to the Superchips reader but not sure.
I have tried to the following steps and still not fixed, and I am running out of ideas.
- Check the wire connect on the FAD. It was not loose, but I disconnect it and clean the wires just in case.
- Check and change the T-case fluid. it was about a half Qt low.
- replaced the transfer case switch
- check all the linkage on the T-case and everything is connected.
I have read so many forums and watch too many videos and cannot see to figure out what it might be. At this point not sure if I should go back to the dealership or a different shop.
I will take any suggest anyone has…
thanks,
Louis
2020 JLU Unlimited Sport S - 3.6L Gas