2003 GMC 2500 HD 8.1L need help with cruise control wires - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**pound41** · 11-16-2020, 11:06 AM

Hello I have a 2003 GMC 2500HD 8.1L goes into reduced engine power
PO2135. Everything has been swapped out with new GM still does it. I am getting a new harness made. I have to give the builder lengths for the wires. I cannot find the path for the cruise control wires to the column. are they 1 long wire or do they go into the ecm and another wires comes out? any help is greatly appreciated

11-16-2020, 11:06 AM	#1
pound41 Registered User Join Date: Dec 2002 Location: Northern Virginia Posts: 1,269	2003 GMC 2500 HD 8.1L need help with cruise control wires Hello I have a 2003 GMC 2500HD 8.1L goes into reduced engine power PO2135. Everything has been swapped out with new GM still does it. I am getting a new harness made. I have to give the builder lengths for the wires. I cannot find the path for the cruise control wires to the column. are they 1 long wire or do they go into the ecm and another wires comes out? any help is greatly appreciated



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