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**pound41** · 11-14-2020, 06:44 PM

Hello I have a GMC 2500HD 8.1L Goes into reduced engine power.
Everything has been replaced with new GM still does it. So I am getting a harness made. I need to know where the cruise control wires coming off the TAC module go so i can measure the length. I know they eventually go to the column but I dont see any wires coming off the TAC module and going directly back into the firewall.
Any help is greatly appreciated
Thanks

11-14-2020, 06:44 PM	#1
pound41 Registered User Join Date: Dec 2002 Location: Northern Virginia Posts: 1,268	2003 Sierra 2500HD 8.1 Cruise control wires Hello I have a GMC 2500HD 8.1L Goes into reduced engine power. Everything has been replaced with new GM still does it. So I am getting a harness made. I need to know where the cruise control wires coming off the TAC module go so i can measure the length. I know they eventually go to the column but I dont see any wires coming off the TAC module and going directly back into the firewall. Any help is greatly appreciated Thanks