The P0565 trouble code on a 1994 Buick LeSabre Limited indicates a problem with the cruise control system, specifically related to the cruise control switch or wiring. To repair it, first inspect the cruise control switch for any damage or malfunction. Next, check the wiring and connectors for corrosion or loose connections. If necessary, replace the switch or repair the wiring to resolve the issue. After making repairs, clear the code and test the cruise control system to ensure it functions properly.
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