I tried to add the lightbar to the 23 Lightning Pro using forscan. I used the instructions in the popular thread. I am very new to forscan, but to my knowledge essentially what I have done is upload the Lightbar software from an XLT to the headlight so that it can pull the power from the...
I'm In trouble here any advice is welcome. I followed the steps of this thread up to programming and the LDCM A update failed. And has failed probably 6 times. DTCs are cleared and truck is unplugged. I now have no DTC function at LDCM A, so I can't reset it or anything. Can anybody explain what...