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What could be wrong with your car if the brake lights work when the lights are off but when the lights are turned on the passenger side tail lights and brake lights completely go out?
Wiki User
∙ 19y ago
This is usually a grounding problem. Either an insufficient ground to the assy or a positive to ground problem. As you mention the brake lights work with the lights off, it will probably be related to a problem with the "running lights" system. As you mention only a problem with the passenger rear, I would check for a poor ground related to that light assy or possibly one of the bulbs' internal filaments in that assy touching each other. Or possibly a socket failure at that assy. Good Luck
Wiki User
∙ 19y ago
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