Brake lights don't work except window

Asked by Aug 29, 2013 at 03:15 PM about the 1998 Mercury Grand Marquis

Question type: Maintenance & Repair

Changed switch on firewall still same please help thanks

1 Answer

7,205

Check all bulbs and check for electrical power at the other two locations with the "brake pedal depressed". Black spots, or black interior of a bulb is the quick "give away" it is bad.

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