What would cause the lights to cut off while driving at night?
I would be driving at night and the lights would just cut off with no warning. I would have to cut them off and cut them back on, just to get them to come back on. They won't stay on longer than 30 minutes before the cut off again.
There's a circuit breaker inside of the headlight switch. It's not replaceable. If it's bad you'll have to replace the headlight switch. Either it's weak or something is overloading the headlight circuit. HTH. -Jim
I want to thank you for info on Mercury Grand Marquis headlight control module. My lights went of and on while driving. Am a lady 71 years old - very frightening. You suggested I call Ford and they will replace under warranty and they did. I cannot thank you enough.
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