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IO27 Switch Failure

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Driving home from Spring break yesterday I had cruise turned on. All of a sudden it wouldn't hold - speed decreased. If I push the button it says "cruise engaged" but it isn't working. I checked codes and got IO27 - switch failure. I checked the solenoid under the hood and everything looks ok. Any ideas? I haven't had much time to investigate, but thought I could get some help.


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