Possible Electrical problem?


Old 10-24-07, 05:01 PM
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Possible Electrical problem?

I have a 2003 navigator and of course the warranty expired 3000 mis ago. Recently, every once in a while the "check suspension" light comes on and turns off quickly. After doing a systems check, it always says "suspension ok". Also...now this is strange...when i turn the lights on, none of the buttons on my climate control work; on the panel or on the steering wheel. The fan blows, but i cant adjust anything! Turn the lights off and everything is fine. I'm hoping all of these problems are connected, but i have no idea where to begin! It all happened out of nowhere!

Any ideas or direction would be GREAT..THANKS!
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Old 10-24-07, 06:03 PM
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See if there is a service bulletin is out on this problem.

If nothing on this, then I'm afraid only a wiring diagram will show you the common tie-ins between these things, or any resistors. Pay particular attention to how everything is grounded - if individually, or, if there is a common ground that might be compromised by corrosion or a bad connection. If each is grounded individually then it be more doubtful about the corrosion/bad connection tie-in. Then it maybe be something else regarding power feed joinery or resistors in some of those other things you mention.

I am no expert on this and am just taking some guesses here.

BTW, my own car does this with the headlights and the light on the radio dial. But it doesn't affect anything of any significance so I let it ride.

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