Question about 2000 Mercury Mountaineer

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Dome light troubleshoo

Dome light won't come on when I open door but does when I turn on manualy where do I find switch on door

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The interior lights do not come on when ANY door is opened, not just the driver door. This sounds like the relay for the door ajar switch. Where is that?

Posted on Oct 18, 2015

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Driver side dome light will not go on when open the door All other... This has the schematics you need for the door and wiring diagram.

Posted on Apr 17, 2014

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Posted on Jan 02, 2017

ftw1952
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SOURCE: looking for door switches for dome light

replace the relay for the door ajar switch
it is a notorious faulty relay that goes bad with all Ford built vehicles

Posted on Mar 07, 2010

canwoodjc
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SOURCE: i want to turn my

unfortunatly some of the mercury's came with a instant on dome light that will always come on once the door is opened, and stays lit for a period of time then slowly fades out, if this is the case with yours,, there isn't much you can do about it unless, you remove the lens cap and pull the bulb, removing the fuse that runs this light will also dismantle other items in the cab compartment

Posted on Aug 10, 2011

alicantecoli
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SOURCE: door open indicator light stays on , automatic door locks go on & off while driving and dome light and outside mirror lights wont go off after the car is turned off

i would hazard a guess and say that wires in the rubber boot from the door pilar to the door are damaged or the connection block in the door pillar in this the terminals are corroded or something similar

Posted on Nov 22, 2011

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SOURCE: 97 mercury grand marquis dome light turns on and off as u open and close rf door..any ideas???

Sounds like there is a loose ground wire inside the door panel, but the doorjam switch should be what determines the off and on. It is located in the doorjam.

Sometimes the wiring that goes through the doorjam can hide a broken wire inside. There are more connections in the drivers door because it is the Master location for all the other locks and windows.

Go to Autozone.com for wiring diagrams for free. Just register your car and you can get chassis diagrams to show where the wires are for that circuit.

If you are going to fool around with the wiring, disconect the battery first. The only big thing is the controls for the outside mirror can make the removal of the door a little more difficult.

Posted on Mar 29, 2012

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1 Answer

Can't get dome lights on when door is opener even with override switch off?


The following lamps may be manually turned ON by placing the interior lamp switch in the ON position, or by opening a door while the switch is in the AUTO position.
?€¢
The dome lamp


?€¢
The liftgate lamps


?€¢
Courtesy/map lights

The courtesy lamp supply voltage circuit of the body control module (BCM) supplies battery positive voltage to the dome lamp, the liftgate lamps, and the map lamps. When any door is opened, the door jamb switch contacts close providing a door open input to the BCM. The BCM then provides a ground to the interior lamps with the switch in the AUTO position. The interior lamps receive a ground at G401 with the switch in the ON position.
Important: If the liftgate is opened after all the modules go to sleep, the dome light will not come on. The liftgate ajar switch input to the BCM will not wake up the BCM once it has gone to sleep, so the dome light will not come on. Once the BCM gets an input to wake it up, from remote keyless entry (RKE) or a door handle, the dome light will turn on when the liftgate is opened.
If the driver inadvertently leaves any interior lamp ON, the BCM will turn it OFF after a 20 minute time-out.
The courtesy lamps will turn OFF immediately if the ignition switch is turned to the ON position or approximately 20 seconds after all doors are closed.
The courtesy lamps are controlled by the body control module (BCM). Inputs from the dome lamp switch and the door ajar switches are monitored by the BCM. When a door ajar switch is closed, or the dome lamp switch is turned to the ON position, the BCM supplies the B+ for the courtesy lamps.
With out a factory Tech2 scan tool or equivalent an knowing how these systems work ,you best bet is to take your vehicle to the dealer or some other ASE certified repair shop !

Sep 04, 2015 | 2009 Buick Enclave

2 Answers

Where is the courtesy dome light switch located for 2003 Envoy


there are at least 3; 1 is using the dash light switch-turn all the way up;2 that show 4 lights on it-push it and it will turn them off-push it again and it will turn them on; three push on one end or the other end of the actual light.

Aug 24, 2014 | 2003 GMC Envoy

1 Answer

Dome light turns driving


i turn on what light the head light switch.
most cars have a dome light feature for turning on the dome.
see the operators guide.
the dome turns on 3 ways (more)
any door open (each door has a jam switch to do that)
the lamp itself side of it switch on. (and a defeat switch , on most)
the dash lamp switch to do it from drivers seat.

Jan 14, 2014 | 2004 Acura TSX

2 Answers

I have a 2005 GMC Sierra 1500 Z-71 - the interior dome light works with the dash switches, but won't work when the door opens. Why?


Is there a button by the headlight control switch? I recently found out that the dome light only comes on while the doors are open when this button is engaged

Jul 01, 2012 | 2005 GMC Sierra

1 Answer

Dome light in pontiac won't shut off


is the switch in the door bad?leave the key in the ign does the key chime go off before you open the door i think that model the switch is built into the lock assembly

Apr 26, 2012 | 2005 Pontiac G6

1 Answer

No. my dome light won't shut off. how do I shut it off


Check the light switch on the dash and see if it is turned on for the dome light, if so turn it off and the dome light should go off. Check if the dome light it self has a on/off switch button on it. If this was not the problem, check the push button switch at each door by opening the door and holding the button in, if you have a delay light system on your car, you will have to hold the button in for awhile till it kicks the dome light off. If this did not fix the problem, remove each door switch and unplug the wire going to it, use a volt meter to check if the switch works on and off when you push the button in and out, if the switch is bad, replace it, you can buy them at a local auto parts store or dealer. If the switch was bad just leave the wire unpluged till you can replace it, this way the dome light should go out

Sep 06, 2011 | Chevrolet Tahoe Cars & Trucks

1 Answer

Dome light wont turn off. have to disconect the battery cable while it's unatended so it doesn't drain the battery.


Didn't list the year or model or car or truck or even the engine size or country it was sold new in. ( laws are different countries ) the cars and trucks are made with some differentes. the dome light can stayon because the dome switch is on. The headlight switch can be turned all the way or the dash gauges dimmer can be turned all the way up, On some model years you can turn it all the way down and the dome ligh will be out even with the door open. Some models don't turn off this way and you'll have to find the door switch thats not working. Sometimes going around and slamming each door will find the bad one as it'll blink the light or it might even start working again. If the car or truck has a hatch or trunk theirs a switch on some of them too the vans and suvs all do. The switches on some yaers ( current model till late 80's) the switch is incorperated into the door latch itself. Their hard to get too and it requires taking the inside door panel off to get to the latch and then some latches have to be removed to get to the switch thats screwed ( 1/4 turn) inti the side of the latch. The drivers door sets and resets sereravl things so just unplugging it won;t work. Removing the dome light fuse will fix it too but some radio functions might not work on certain models as the cruise control. Everythings intertwined, How much so depends on the year ands model.

Jan 19, 2011 | Ford Bronco Cars & Trucks

7 Answers

Dome lights won't turn off


Been having a problem with the dome lights on a 99 chevy blazer. Still can't figure out what the problem is. There is a dome light overide button located under the dimmer wheel. When I push the overide button in the dome light goes off, but when I open any of the doors the dome light will not come on. When the overide button is out the dome light stays on all the time and will not turn off even though every door is closed. I checked all the pushbuttons and everything tests good. Has anyone had this problem and know how to fix it?

Sep 04, 2009 | 1997 Chevrolet Blazer

2 Answers

I have a 2003 corolla le my door light is on and wouldn't go off


I could be a door switch.  1. switch dome light to door 2. close all the doors 3. open each door one by one. if the dome light comes on then you    know that switch is good. 4. closed the door and wait for the dome light to turn off then move on to the next door. 5. If you find a door that does not turn on the dome light than bingo you have a bad door switch. * the door switch may be your problem because of the constant abuse of slamming, closing , and opening the doors. * This test is not 100%. it is just a visual test. and sometimes with a simple visual test you can diagnose your problem while saving time, and $ Good luck!

Mar 29, 2009 | 2003 Toyota Corolla

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