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Any help before I have to leave the truck at the dealer for a few days would be great.
Dual 7 pin and 4 pin connector
Test the 7 pin : 8 volts when grounded to the wiring harness
Test the 4 pin : 7-8 volts when grounded to the wiring hardness
Test the 7 pin : 8 volts when grounded to the Frame
Test the 4 pin : 7-8 volts when grounded to the Frame
7-8 Volts on when testing at the fuse panel under the hood. Grounded to the engine block.
Relay seems good, all 4 fuses are good. Other Fuses like lights, radio and wipers all bring back 12v range.
I am not sure where to go from here. I don't want to miss a ground wire or something.
I did clean and re-attach the ground wire next to the brake controller under the rear of the truck.
I have a 2018 GMC Sierra 1500 5.3 L. A few weeks ago I slammed on my horn too hard and the horn wouldn't stop until I took the fuse out. If I put the fuse back in, the horn blows continuously so I have taken the fuse back out but now I can't use the horn. I would like to try and fix the issue myself instead of bringing it into a dealership but can't find any videos or tutorials on how to fix the horn button switch which I think is the issue.
If anyone has any feedback, please I'd appreciate something because I am not having much luck on my end.
By Nathan Gwin
First time posting on here, I’ve tried Facebook for answer and have gotten nowhere.
I have seen all of the cargo/reverse light mods and can’t seem to find what I’m looking for.
I am wanting to add a set of reverse bumper lights to my truck, my problem that I’m trying to figure out is I want to either add a switch on my dash or use the existing cargo lamp switch to power them. I am only wanting my reverse lights to come on when I put my truck in reverse or turn the cargo light switch on but when I put my truck in reverse I do NOT want my cargo lights to come on. I want to be able to use my bumper lights anytime I please no matter if I’m parked or driving down the road but I also don’t want my tail light reverse lights to be on when I turn the switch on. Only when I put my truck in reverse do I want the factory reverse lights on, I don’t want them to be on if I’m driving down the road. I also don’t want my truck to display the R on the dash if I’m driving down the road and I turn them on.
I figure I’m gonna need a couple of relays and diode or two but I not exactly sure what I will need or how to add them all to the truck and it function how I want it.
I want to be able to add a switch into the bed for the bed lights as well so I need the cargo/bed light switch that I add to work with this setup I’m wanting to add.
By Henry L
2020 Silverado 2500, have taken this truck to two different GM dealers and they cannot find an issue. At the at the 7-pin plug when the manual gain is depressed at 100%, it only puts out 7 volts. Need 12 to lock up brakes. Cannot properly set up my gain when hooked to trailer before towing. Dealership has replaced fuse block brake controller and I had them change out the plug on the bumper. Still the same. At neither dealership have they been able to give me voltage going in the controller and coming out. One even said they can't put a volt meter on it. I believe it's a wire somewhere. But due to my health issues I cannot physically work on my truck. I'm probably going to end up taking it to an auto electrician. Any thoughts!
Hey all! I'm the proud owner of our 1st brand-new vehicle ever! this '22 Silverado HD High County is a game-changer for pulling our new camper trailer! I recently retired and found this beauty on a dealer lot near me!
So... as per usual with my vehicles, I really enjoy there look of nice clean, glossy calipers peaking from behind the rims! These wheels are not as open-spoked as others I've done, but still look great, especially when they turning miles not the highway! I always use the brush-on G2 caliper paint. The stuff is incredible! Here's a couple pictures in process and afterwards...
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