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**VetteVet** · 11-07-2022, 07:59 PM

Pull the harness plug on the firewall by the accelerator mount and apply 12 volts to the dark brown wire. If the lights don't light the problem is in the rear of the truck. I fthey do light the problem is at the headlight switch.

A bad ground is usually the issue when the lights won't light in the rear. And a blown fuse is usually the problem in the cab.

11-07-2022, 07:59 PM	#3
VetteVet Msgt USAF Ret Join Date: Jan 2005 Location: Kalamazoo, Michigan Posts: 8,705	Re: Tail lights not working Pull the harness plug on the firewall by the accelerator mount and apply 12 volts to the dark brown wire. If the lights don't light the problem is in the rear of the truck. I fthey do light the problem is at the headlight switch. A bad ground is usually the issue when the lights won't light in the rear. And a blown fuse is usually the problem in the cab. __________________ VetteVet metallic green 67 stepside 74 corvette convertible 1965 Harley sportster 1995 Harley wide glide Growing old is hell, but it beats the alternative.