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This may already be covered elsewhere, but in case it saves someone else some time.....
My turn signals and hazards stopped working, but I still had brake lights, running lights, headlights. When I hit the brake pedal, both left and right dash indicators lit up.
Luckily, this was an easy one. Replace the 20A flasher fuse (circled in photo). Two-prong fuse (LL552 Long Life Flasher, $9 at O'Reilly's). Back in business after being concerned about bigger electrical issues.
Fuse Box 1972 Cutlass Supreme
Last edited by mikemickunas; July 18th, 2023 at 01:25 PM.