The Ford Barn

oneoldtruckguy · 06-13-2015, 12:10 PM

Got a new harness to wire my taillights on a 1950 F1 Pickup. I already put the complete harness on the engine to dash. I have power on the green wire coming from light switch to the taillight at the firewall. Then I have power to the brake light switch but NO Power at the rear harness where it plugs into the taillights. What am I doing wrong???? Otherwise Power at the front of the harness but no power at the rear.

CA Victoria · 06-13-2015, 12:54 PM

Do you have power to the Brake SW? Tested SW with VOM?
Could you have picked up, the wrong leads on the light SW?
I had to take my original headlight switch apart to clean the contacts.

waterboychuck · 06-13-2015, 05:55 PM

I had a like problem and found that the bullet connectors were not pushed in far enough.

JSeery · 06-13-2015, 06:45 PM

Sponsored Links (Register now to hide all advertisements)

Are you just working with just the Brake Light? As I'm sure you know, there are two wires, Tail Light and Brake Light. The Tail Light is Black and Brake Light is Green wire. If you have power to the brake switch, is the switch itself bad? You could bypass the switch and jumper the wire to see if the rest of the harness is ok.

06-13-2015, 12:10 PM	#1
oneoldtruckguy Member Join Date: Mar 2014 Location: Bozeman, Montana Posts: 56	taillight harness on 1950 F1-Help Got a new harness to wire my taillights on a 1950 F1 Pickup. I already put the complete harness on the engine to dash. I have power on the green wire coming from light switch to the taillight at the firewall. Then I have power to the brake light switch but NO Power at the rear harness where it plugs into the taillights. What am I doing wrong???? Otherwise Power at the front of the harness but no power at the rear.

06-13-2015, 12:54 PM	#2
CA Victoria Senior Member Join Date: Feb 2011 Posts: 2,113	Re: taillight harness on 1950 F1-Help Do you have power to the Brake SW? Tested SW with VOM? Could you have picked up, the wrong leads on the light SW? I had to take my original headlight switch apart to clean the contacts. __________________ Tim Downtown, Ca

06-13-2015, 05:55 PM	#3
waterboychuck Senior Member Join Date: Jan 2012 Location: Nine Mile Falls,WA Posts: 900	Re: taillight harness on 1950 F1-Help I had a like problem and found that the bullet connectors were not pushed in far enough. __________________ The sign of a good craftsman is how well they cover up their mistakes.

06-13-2015, 06:45 PM	#4
JSeery Member Emeritus Join Date: Nov 2012 Location: Wichita KS Posts: 16,132	Re: taillight harness on 1950 F1-Help Sponsored Links (Register now to hide all advertisements) Are you just working with just the Brake Light? As I'm sure you know, there are two wires, Tail Light and Brake Light. The Tail Light is Black and Brake Light is Green wire. If you have power to the brake switch, is the switch itself bad? You could bypass the switch and jumper the wire to see if the rest of the harness is ok.