Yep checked them all. All Ok.
There seems to have been a mid year change on the trailer wiring.
There Must be a relay some where.
& there must be the correct schematic some where too, but I can't find it.
2003 GMC Yukon XL SLT w/ Heavy Duty Towing Package. Towing a boat trailer with surge brakes.
(I know that I can block the surge brakes so I can back up the trailer)
The Normal rear Back up lights work. All Fuses good. I do not have electric brakes or its controller
I do not have power to the...
2003 Yukon XL SLT, 5.3l 185000 miles shooting for 300k
:Insane:
The wife had a flat (3 months ago) in the desert. AAA came out and changed it for her but used our jack and tools in the Yukon. She and AAA guy didn't know where they were but she found them after he left. He came back and changed...
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