1993 Buick Lesabre; 64k miles; Heater - a/c controls not working; sometimes controls work after car running for awhile - may stay on for a couple minutes then cycle off and on - couple minutes on couple minutes off. One time started car and controls cycled from one feature to the next, each staying on for aprox 2sec before going to the next button by itself. Any thoughts?
Optional Information:
1993
Buick Lesabre Custom 3.8L
Already Tried:
fuse under dash
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