Hello, my door ajar warning light stays on despite all the interior courtesy lights turning off completely regardless of which door. Conversely, each door upon opening causes the interior lights to come on. The rear sliding doors switches appear to be in excellent shape with no corrosion. The front switches are probably inside the door panel and I would like to find out a solution before opening up the panels to check the switches. thanks
Our Ford Expedition & an Olds Silhouette Premier & both did the same thing. Someone online said to spray the inside door where the metal connects with the frame & sensors are there with WD-40. We did & it fixed the problem. Maybe this will work for yours.
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the switches may be ok but the wire to the switch is a live wire and earths out when the door is opened. allowing the light to come on. Check that there is no rust around the switch that will give a circuit . Check that the metal end of the wire is not touching metal any where.
That is because the switch is faulty and is not operating when the door is closed.
Hence the interior light stays on(unless you switch it off manually) and the warning system thinks the door is still open because the switch has not been activated and therefore the open door warning appears.
Hence you need to have the door operated switch replaced.
You need to remove the door ajar sensors from the doors and clean and lube them. You must remove the interior door panel then remove the door latch. Then twist the switch out of the latch to work on it.
To temporarily solve the light problem, I taped a washer to the inside of the door where the door hits the plunger on the light switch. A permanent solution would be to drill a hole in the door at this spot and put a self taping screw in that will trigger the switch sooner. I figured out the reason the dome light stayed on is due to the courtesy light timer and the lights would have eventually gone off.
When my "door ajar" light was on it was because the liftgate sensors (switches) indicated that the gate was open, even thought it wasn't. I took off the plastic trim, and took out the sensors - but that isn't necessary. Just soak with the switches with silicone spray, and see if that helps. There is one on each side of the liftgate - I believe both must indicate "closed" for the light to go off.
I have gotten replacement motors at Checkers for both driver and passenger doors - so now I have lifetime replacement motors.. The first time you replace them, a little drilling is needed on the door sheet metal, but it will not show up once the trim is reinstalled. This repair is a little involved, but well within the capability of a novice mechanic.
you may just need to adjust your door jams they may not be closing properly, the other thing you can try is opening one door at a time and putting your finger on the switch usually in the lower l/h corner of b piller and see if the light goes off if not this may be the problem and replace the switch