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I think I can help you figure this out but you'll need access to a test light and/or a multimeter. You may also need a scan tool. If you have either of the first two let me know and we can proceed with the diagnostic process.
That is a certain possibility but it could be as simple as a fuse or as problematic as a computer still at this point. That being said, do you have power at both sides of fuse at 15amp fuse #28 at both sides of the underhood fuse block?
Did you ever get this problem figured out? If there is anything else I can do to ensure that you rate my service at 5 starts please let me know!