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Which wires are for cruise control?

Greg84

New member
I'm trying to test a multi function switch on my 2006 Grand Prix to see if its failed and that's why the cruise control isn't working. Do any of you guys know what the positive and negative wires are going in to the multi function switch? Thanks.
 


OK I've got a wiring diagram that shows this at the cruise control switch

CONN ID
C1=8 BK
C2=7 GY
C3=5 BK
C4=5 BK

I'm guessing the this is for seeing what the color of each wire is, but what is C1 through C4? I'm guessing it stands for connection 1 through 4, but what are these connections? How do I know which is positive and negative and for which button on the multi function switch? I think I'll post the diagram on here and see if you understand. I should probably mention I am a beginner when it comes to electrical diagrams. Thanks.


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