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Why will the front lights not turn on when the car is on.

(2002 Mercury Grand Marquis)
in Palmetto, FL on February 06, 2011
why will the front lights not turn on when the car is on. we checked the battery and it was good. all the fuses are good also. the light switch was also good.
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Popular Answer
on February 06, 2011
There's an auto headlight module in this car which could be faulty. There's also a 'multi-function switch' involved. Best thing is check first at the headlight connectors with a meter or a testlight to see if there's power and ground at the bulb connectors. If there's power and ground, the bulbs are bad. If no ground, trace the circuit to the ground points. If no power, the fault is in the system. You may want a Ford/Merc specialist or an auto electric shop to check this out.
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