Sounds like the light switch
Will120183 answered 10 years ago
Also headlight control module, located under the air filter box. I have an 03, got a recall notice from Ford, they will fix it for free. Could also be day time/night time sensor.
1997 Mercury Grand Marquis
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Maintenance & Repair
my interior lights on my 1992 mercury grand marquis wont shut off after i pressure washed the inside doors and drain the battery
1992 Mercury Grand Marquis LS Sedan RWD
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Maintenance & Repair
2006 Grand Marquis, won't start. Have lights, radio, etc, turn to start everything goes dead, leave off key everything comes back on, battery 100%
2006 Mercury Grand Marquis LS Ultimate
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Maintenance & Repair
After shutting door, dome light won't turn off and stays on even. Manual says it might take 45 minutes to shut down if condensation has occurred. This morning the windows were wet from temperature...
2006 Mercury Grand Marquis LS Premium
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Maintenance & Repair
2001 Grand Marquis Interior lights will not go off. I have tried WD 40 in the door latches
2001 Mercury Grand Marquis GS
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Maintenance & Repair
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