Question about 1987 Nissan Pathfinder

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ONE HEADLIGHT WORKS ONE DOESNT WITH METER ONE RED WIRE HOT OTHER NOT THEN WITH HIGH BEAM NONE HOT GOOD GROUND WITH METER

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This might be stating the obvious, it is common to have the left and right headlights on separate fuses, this is to prevent being plunged into total darkness while driving, due to one blown fuse. Just because one headlight works, doesn't mean that a fuse hasn't blown.

Posted on Mar 05, 2010

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Is this a two bulb system? Then bulbs have 2 filaments which share a common ground. 1 wire hot on low, second hot on high. If you are having problems with both then the ground is bad. When you checked for ground with the bulbs plugged in, there is a ground path through the filament across the harness, through the other bulb filament to ground. When you see cars with one very dim bulb on one side this is the problem. Clean the ground wires on both sides where they are bolted to the fender or radiator support.

Posted on Feb 05, 2010

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