Driving down the highway and the door ajar went off. I have taken apart the plunger switches and checked the wires for loose connections ... nothing. I have check the fuses and relays ... nothing. I have disconnected the battery ... nothing. Any ideas?
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Re: Door ajar alarm stays on ...
You probably have a screw in a wire that grounds the connection turning the light on. The white wire will be the one that the screw is in. The orange wire is a 12 volt wire so it can't be shorted because of a blown fuse.
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the light stays on it usually means a door is open or the switch on a door or
liftgate/trunk is bad. If the door adjar button is seperate from the latch
assembly I pull the switch from the body and jump it out. Go one by one and you
will find the failed switch. If the switches check ok and the connector is
jumped and the light is still on then there is an open in the wires for the door
ajar switch Here are more procedures for troubleshooting...
Possible causes are :
1. Door switches stuck in closed position. Remove the rubber cover and loosen
the screw holding the door switch. Pull out switch and check if the light stays
on....if light remains on, fault is not with switches.
2. Anti-theft system ECU shorted. One of the wire goes to the alarm control
unit. Unplug the alarm unit, if equipped and test.
3. Shorted interior dome light. If dome light is not working in the door ajar
mode, remove the dome light and unplug the connector. If indicator light does
not go off, fault is not with dome light.
4. Shorted Red/White wire. This would be the most difficult to diagnose as
the shorting can be anywhere between the door switches to the indicator light.
If you had done any wiring repairs prior to this happening, backtrack to check
if any part of the wire is exposed and grounding
it sounds like you have a door open that is why the light is on. it may not be a actual open door but a faulty door ajar switch. that would explain why the alarm keeps going off. i would start by opening and shutting all doors includingthe hood and hatch.
if that does not fix it-a gm dealer with a tech 2 scanner should be able to located which door ajar switch is bad.
Hi, This seems that either of the door switches is/are faulty. Try pushing the switches fully on each plunger switch on each door individually, keeping the other doors closed while you do. See if one of them causes the light to go out. If you do find one turns the light off, it's an adjustment problem with the plunger switch. May still need to be replaced if it won't depress enough with the door closing to turn off.Let us know if you were looking for something more else please accept the suggestion. Thank You for contacting Fixya.com
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.
Ford Explorer since 1995 has been using an in-door switch for the door jamb. Older versions used a plunger that you could easily test with with your fingers. The common problem is that the switch is not closed, this will cause your dome lite to be on, door ajar light on, and will malfunction any aftermarket auto alarm. Replace the switch, this is a known Ford problem.