Wire harness question - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**rs74** · 01-09-2013, 12:25 AM

On the wiring harness coming off the firewall into the engine compartment. There is a four wire connector towards the drivers side of the main plug. I think there are two green wires and maybe a yellow and also a brown wire. All four of these wires are cut off. What do they go to.

I bought this as a parts truck and was looking at it today. Are these for tail lights or where do they go. It is an 85 K10.

ray_mcavoy · 01-09-2013, 12:49 AM

Yes, that sounds like the plug for the rear light harness that would normally run from there down along the frame back to the tail lights, brake lights, turn signals, and reverse lights.

88Jimmy4x4 · 01-09-2013, 08:34 AM

ya those are tail lights

01-09-2013, 12:25 AM	#1
rs74 Senior Member Join Date: Jun 2010 Location: Illinois Posts: 2,957	Wire harness question On the wiring harness coming off the firewall into the engine compartment. There is a four wire connector towards the drivers side of the main plug. I think there are two green wires and maybe a yellow and also a brown wire. All four of these wires are cut off. What do they go to. I bought this as a parts truck and was looking at it today. Are these for tail lights or where do they go. It is an 85 K10.

01-09-2013, 12:49 AM	#2
ray_mcavoy Registered User Join Date: Nov 2009 Location: Sherman, ME Posts: 2,358	Re: Wire harness question Yes, that sounds like the plug for the rear light harness that would normally run from there down along the frame back to the tail lights, brake lights, turn signals, and reverse lights.

01-09-2013, 08:34 AM	#3
88Jimmy4x4 Registered User Join Date: Oct 2003 Location: houston, texas Posts: 1,974	Re: Wire harness question ya those are tail lights __________________ 2008 Silverado Z71 RCSB 1991 GMC Jimmy 4x4 1976 GMC Sierra C15 SWB



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