Question about 1997 Mercury Sable
Door a-jar light comes on even though all doors are closed . causing interior lights to come on . (very bad when night driving) also when I park the car and shut it off it thinks the doors are open and will leave lights on, draining the battery.
Been there, done that. Spray some WD-40 or other lubricant (white lithium grease) into the 2 front doors. (Start with the driver's door. The switch is inside the door where the latch is. These are poorly designed. If it's like mine, it will get worse as the weather gets colder.
Posted on Nov 07, 2008
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Apr 12, 2013 | Plymouth Neon Cars & Trucks
It appears that one of the door operated switches for the interior light is making contact even though the door is closed. This is indicated by the interior light staying on. It could also be that the "Off/ Door/On" Control switch on the main interior is faulty. Check each door switch by operating manually with finger with door open to see if light goes out.
It this check makes light go out then it could be that one of the door catches is slightly out of adjustment allowing door to sit slightly away from body. Try checking each door for a loose fit by pushing the closed door in and observing if interior light goes off, especially the driver's which gets the most use. There should be only a little movement as the sealing rubbers are squeezed a little more. If door catches are tight then it may be that the rubber pad attached to the door that pushes on the door switch button has compressed and is allowing switch to make contact. If these checks don't produce results then there could be a problem with one of the door switches being faulty and making constant contact.
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