Johnny was spot on. I did what he said and found out it was the blue switch. The switch itself was not bad though. A spacer from the blue switch to where it touches the brake pedal must have come off. I replaced a new spacer in there and the cruise control works fine. THANKS!
How do I find the replacement for the cruise control brake disconnect switch for the 2004 Grand Marquis? I have disconnected and shorted and CC engages fine. Can't find a replacement part though.
SOURCE: 2000 grand marquis cruise control not working
Have seen this problem before. You need to look under dash at brake pedal and find a blue switch with plunger contacting pedal, disconnect connector and jump with a peice of wire and drive to see if cruise works and if it does replace deactivation switch this should get you going.
SOURCE: 2004 acura Tl cruise control wont engage
This is a problem you will to take to a shop, If you are mechanically inclined I can help you, but if not I would not mess with it, it could be the button or it could be the controller and could even just be a fuse, check the fuse and if you don't find the fuse blown then let me know if you have a volt meter and what to test this yourself. You are going to be working around the air bag too and if you probe the wrong wire while testing you could break your arm or leg by deploying the air bag by accident. Or your neck.
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