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What is wrong with your 1986 buick regal if the rear signal lights blink but the brake lights doesnt come on?
Wiki User
∙ 14y ago
Probably either a bad brake lamp switch, improper adjustment of the brake lamp switch or a bad turn signal switch.
The brake lamp switch also contains the cruise disconnect switch, but often only the brake lamp portion will fail due to the higher current involved in running the brighter lamps. The switch develops resistance caused by carbon tracking on the contacts from the spark that's created whenever the switch changes states.
Also, the brake lamp circuit runs through the turn signal switch. If the brake lamp contact in the switch goes bad, you can have a situation where the brake lamps won't light but the turn signals function properly.
Wiki User
∙ 14y ago
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