Need help identifying harness - The 1947 - Present Chevrolet & GMC Truck Message Board Network

5150 · 09-09-2017, 01:37 PM

So I got a little presumptuous and thought I'd start in on my harness after spending some time on lt1swap.com. Seemed simple enough that even my idiot self could do it. I think I was wrong. I have the blue and green connectors and was following his directions on which wires to pull out and get rid of. This is my issue:

I have this harness:

But trying to follow lt1swap.com's directions most of the harnesses have these style plugs:

izzy_Britton · 09-10-2017, 11:53 PM

tell us what your working on. what year was it originally out of? truck suv avalanch? are you sure the harness is from the proper vehicle?

**truckdude239** · 09-11-2017, 10:21 AM

Well the left one in your hand looks like the plug for the tac moudle for dirve by wire

BR3W CITY · 09-11-2017, 12:43 PM

Sure your looking at the right side of the connection? Gm harnesses have C, J, and X designation on harness headers like that. Depending on the donor, you may have an X header/plug, but be referencing the diagram from a vehicle using a J header. We went through this on a fellow members LS3 swap.

racecougar · 09-12-2017, 09:10 PM

Quote:

Originally Posted by truckdude239

Well the left one in your hand looks like the plug for the tac moudle for dirve by wire

Agreed.

09-09-2017, 01:37 PM	#1
5150 C10 Club Tennessee Join Date: Mar 2003 Location: White House, TN 37188 Posts: 8,281	Need help identifying harness So I got a little presumptuous and thought I'd start in on my harness after spending some time on lt1swap.com. Seemed simple enough that even my idiot self could do it. I think I was wrong. I have the blue and green connectors and was following his directions on which wires to pull out and get rid of. This is my issue: I have this harness: But trying to follow lt1swap.com's directions most of the harnesses have these style plugs: __________________ Bryan www.gmtruckshow.com Project "Andes"-Halen's First Truck Project: Patina Burb for he is God’s servant for your good. But if you do wrong, be afraid, for he does not bear the sword in vain. For he is the servant of God, an avenger who carries out God’s wrath on the wrongdoer. Romans 13:4

09-10-2017, 11:53 PM	#2
izzy_Britton Registered User Join Date: Apr 2013 Location: Nor-Cal Posts: 632	Re: Need help identifying harness tell us what your working on. what year was it originally out of? truck suv avalanch? are you sure the harness is from the proper vehicle? __________________ WHO_DCTC - Wifes 05 Z-71 Build - Now defunct as she decided she wants an Escalade too Cream Puff - LS'd Square - Slow going on the back burner Tripple Threat - 3 Wrecks for the price of one build thread Project Delongdium - Step-Sons Plastic Clad 2003 Avalanche - DONE and Delivered.

09-11-2017, 10:21 AM	#3
truckdude239 Senior Member Join Date: Sep 2005 Location: Lewisville, Nc Posts: 10,237	Re: Need help identifying harness Well the left one in your hand looks like the plug for the tac moudle for dirve by wire __________________ David fuller Ase Certified Mechanic Click here to help support our board!! 1971 Chevy c-10 under going a 4.8l LSx swap Build Thread http://67-72chevytrucks.com/vboard/s...d.php?t=421305 2007 Honda Accord my daily 145kmiles 2002 Honda Accord 4 door With 330k(sisters car) 2005 toyota Avalon 228k( brothers car) 2002 Sububran 5.3 245k 2000 Tahoe 5.3l 378 General manager for Marco's Carwash & lube

09-11-2017, 12:43 PM	#4
BR3W CITY meowMEOWmeowMEOW Join Date: Sep 2009 Location: MKE WI Posts: 7,128	Re: Need help identifying harness Sure your looking at the right side of the connection? Gm harnesses have C, J, and X designation on harness headers like that. Depending on the donor, you may have an X header/plug, but be referencing the diagram from a vehicle using a J header. We went through this on a fellow members LS3 swap. __________________ *'66 Short Step / SD Tuned / Big Cam LQ4 / Backhalfed /Built 4l80e / #REBUILDEVERYTHING* MY BUILD THE H8RDCPTR //\\ MY YOUTUBE CHANNEL REV J HD

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