Dome light stays on?
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Mountain Pass
Joined: May 2008
Posts: 142
Likes: 1
From: Happy Valley, OR
Dome light stays on?
Why the heck would my dome lights (front and back) stay on while I'm driving and when the truck is off KOEO and locked? It's not the reading lights, those I can turn on and off at the switch on the light, it's the lights in between them.
Hotshot
Joined: Dec 2006
Posts: 14,069
Likes: 17
From: Melbourne, Ky
Well, since it was brought up, there's a switch inside the door that activates the dome light. IF, you find out that a sticking switch is the problem, (and not the dimmer switch being turned on) you can usually fix it by spraying up inside the latch in the door with some PB Blaster with a straw, then open and close the door a few times.
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Cross-Country
Joined: May 2016
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From: Southern California
Stuck on door switch will trigger a Door Ajar warning while driving, but the dome lights will be out. The dome lights stay on longer with key off after closing the door with the stuck = on switch.
Another way to diagnose a door switch. If there's no Door Ajar warning while driving, it's not a door switch.
Another way to diagnose a door switch. If there's no Door Ajar warning while driving, it's not a door switch.
Elder User
Joined: Jul 2016
Posts: 533
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From: Northwest Indiana
Just kidding. The easy problems are the nice ones to have.
Post Fiend
Joined: Mar 2015
Posts: 5,277
Likes: 32
From: Blairsville, Pennsylvania
FYI, AutoEnginuity can monitor the door ajar condition and tell you WHICH door (or liftgate window in the Excursion) is bad.
There has been more than one person come by my buddy's and offer $50 if he could tell them which door and fix it.
No $50 involved, but it did convince him to buy a copy of AE, after using mine for a while
There has been more than one person come by my buddy's and offer $50 if he could tell them which door and fix it.
No $50 involved, but it did convince him to buy a copy of AE, after using mine for a while
New User
Joined: Dec 2012
Posts: 4
Likes: 0
Thanks!!!
Tell you what: I was here trying to figure which new gremlin was keeping my light on. I fixed a lot of electrical issues in the last month or so on my 05 F250, but having the light on and no door ajar alert was a new one. So I googled it, found your post, slapped my forehead, went on the truck and sure enough, the dimmer was all the way up!
Last edited by mfeijo; Apr 15, 2019 at 08:36 AM. Reason: Typo
Banned
Joined: Dec 2018
Posts: 3,541
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I just replaced my passenger side door switch since it would act up for a couple days when it got wet. Try not to break the two plastic tabs that hold the wiring harness to the switch by using a long flat blade and a flashlight. That is the trickiest part since the plastic is old and brittle. I broke one of the tabs but the other one is holding it fine.
this helps illustrate:
this helps illustrate:
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