The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - Ez wiring harness to 86 factory tail light harness HELP!!

Project86 · 03-17-2018, 02:54 PM

Finishing up the wiring on my 86 c10

I'm using the ez wiring harness.
My truck has the taillight harness with a four wire plug

No matter how I connect any of the wires. My brake lights will not light up.

I was told I had to splice directly to the bulb sockets. But I would prefer to keep the original harness.

Has anyone ran into this same problem?

03-17-2018, 02:54 PM	#1
Project86 Registered User Join Date: Oct 2013 Location: Biloxi MS Posts: 259	Ez wiring harness to 86 factory tail light harness HELP!! Finishing up the wiring on my 86 c10 I'm using the ez wiring harness. My truck has the taillight harness with a four wire plug No matter how I connect any of the wires. My brake lights will not light up. I was told I had to splice directly to the bulb sockets. But I would prefer to keep the original harness. Has anyone ran into this same problem?