Help with wiring?????? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

J · 08-17-2003, 03:48 PM

Hello all,
Got pulled over for not having any brake lights. I tested the little switch under the pedal and the bulbs, they are fine. The hazards are not working on the back end either. Everything up front works fine. It is just the brakes and hazards on the back. The hazard relay is new so it is not that. Does anyone have any advice? Maybe a wiring diagram? Thanks

jef5150 · 08-17-2003, 03:56 PM

hope it helps,,,i have dash panel,and engine compartment if u need them also,,,,jeff

jef5150 · 08-17-2003, 03:58 PM

do your dash lights work??????/

Longhorn Man · 08-17-2003, 04:00 PM

Your blinkers are working up front?
If there is no blinkers, i say look for a fuse, and if the fuse is good, you may be looking at a turn signal switch.
If they do blink up front, and the parking lights in back still work, then it will be a wireing problem, and probably not a ground issue. Try looking a the Dark green wire, and the yellow wire on the harness. I would start under the rear bumper. It has probably been spliced a 1/2 billion times for trailer harnesses.

ddsmith · 08-17-2003, 04:45 PM

You can take a look at the firewall connector. Should have DG,LG,BRN, and Y wires coming out of it. I think this connector easily came off on the inside of the truck when I was doing my A/C install. The inside connector is just above the gas pedal to the right.

08-17-2003, 03:48 PM	#1
J Registered User Join Date: Oct 2001 Location: Yuma, AZ Posts: 164	Help with wiring?????? Hello all, Got pulled over for not having any brake lights. I tested the little switch under the pedal and the bulbs, they are fine. The hazards are not working on the back end either. Everything up front works fine. It is just the brakes and hazards on the back. The hazard relay is new so it is not that. Does anyone have any advice? Maybe a wiring diagram? Thanks __________________ '72 C-10 '99 Silverado '91 S-Dime

08-17-2003, 03:56 PM	#2
jef5150 Inline 69 Join Date: Apr 2003 Location: valleysprings,california Posts: 1,018	rear wiring hope it helps,,,i have dash panel,and engine compartment if u need them also,,,,jeff Attached Images

08-17-2003, 04:45 PM	#5
ddsmith Glowing since 1978 Join Date: Mar 2001 Location: Lusby,MD,USA Posts: 532	You can take a look at the firewall connector. Should have DG,LG,BRN, and Y wires coming out of it. I think this connector easily came off on the inside of the truck when I was doing my A/C install. The inside connector is just above the gas pedal to the right. __________________ 66 Chevy C30 Stakebody Dump, PS,PB, 327cu in 71 Corvette Coupe 454 4 speed 69 Chevy C20 Custom Camper

08-17-2003, 03:58 PM	#3
jef5150 Inline 69 Join Date: Apr 2003 Location: valleysprings,california Posts: 1,018	do your dash lights work??????/

08-17-2003, 04:00 PM	#4
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,693	Your blinkers are working up front? If there is no blinkers, i say look for a fuse, and if the fuse is good, you may be looking at a turn signal switch. If they do blink up front, and the parking lights in back still work, then it will be a wireing problem, and probably not a ground issue. Try looking a the Dark green wire, and the yellow wire on the harness. I would start under the rear bumper. It has probably been spliced a 1/2 billion times for trailer harnesses.



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