Discovery II Talk about the Land Rover Discovery II within.
Sponsored by:
Sponsored by:

Dome Light Electrical Demon

Thread Tools
 
Search this Thread
 
  #1  
Old 04-08-2010, 09:57 PM
discomedic4's Avatar
Winching
Thread Starter
Join Date: Mar 2010
Location: Briar, TX
Posts: 749
Likes: 0
Received 4 Likes on 4 Posts
Default Dome Light Electrical Demon

So.....my front dome light is acting possessed. It comes on at random times when the door is open and key is on but it is not consistent. Also it will not come on by the overhead switch no matter what I do. Obviously the bulb is good as it does occasionally come on but I am not sure where to start to try to find the little demon in the wiring. When I have the door open and no key in you can depress the door switch and you can hear a click under the seat but no luck with the light coming on. It almost seems like the overhead switch is bad and that the door switch is bad also. Does anyone have any suggestions as to where to start to try to fix this. The dome light coming on would be nice when I try to get in and it is dark outside. Thanks in advance for the help guys.
 
  #2  
Old 04-09-2010, 06:26 AM
Rovin4life's Avatar
TReK
Join Date: Dec 2009
Location: Albany, NY
Posts: 2,243
Likes: 0
Received 10 Likes on 9 Posts
Default

use a test light and find out if it is good. if it isn't then its likely a wiring problem or corrosion issue at the fuse box.
 
  #3  
Old 04-09-2010, 12:30 PM
6ta1's Avatar
Overlanding
Join Date: Jan 2010
Location: Dallas, TX
Posts: 24
Likes: 0
Received 1 Like on 1 Post
Default

I have the same issue but only with the light above the trunk area... going to investigate when I get the headliner out
 
  #4  
Old 04-09-2010, 08:03 PM
discomedic4's Avatar
Winching
Thread Starter
Join Date: Mar 2010
Location: Briar, TX
Posts: 749
Likes: 0
Received 4 Likes on 4 Posts
Default

Well I spent about an hour testing everything. I checked the door switch, the overhead switch, the fuse box, and all the connections and good power. I also cleaned them all. Still working the same. If you have the door open the dome light will come on but only with the key in the ignition and turned on. The on position will not work no matter what. I just don't get it. Also the wiring looks brand new. The only thing I can think of is to replace the dome light and if that doesn't work I guess I will run some new wires (eventually).
 
  #5  
Old 04-10-2010, 09:24 AM
ROVERTECH15's Avatar
Mudding
Join Date: Mar 2010
Posts: 131
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by discomedic4
Well I spent about an hour testing everything. I checked the door switch, the overhead switch, the fuse box, and all the connections and good power. I also cleaned them all. Still working the same. If you have the door open the dome light will come on but only with the key in the ignition and turned on. The on position will not work no matter what. I just don't get it. Also the wiring looks brand new. The only thing I can think of is to replace the dome light and if that doesn't work I guess I will run some new wires (eventually).

yeah it sounds like the domelight switch is bad must be stuck in off position
 
  #6  
Old 04-10-2010, 12:34 PM
discomedic4's Avatar
Winching
Thread Starter
Join Date: Mar 2010
Location: Briar, TX
Posts: 749
Likes: 0
Received 4 Likes on 4 Posts
Default

Hey, when I forgot to mention that when I took the light switch apart there is a green colored grease on the connection plate on the switch plate. Is this supposed to be there. I left it in place as I was unsure. Could this be the problem? I don't want to clean it off if it is supposed to be there but I have never seen grease on an electrical connection before.
 
  #7  
Old 04-10-2010, 12:44 PM
XCELLER8's Avatar
Pro Wrench
Join Date: Oct 2008
Location: sackets harbor, ny
Posts: 1,647
Received 91 Likes on 82 Posts
Default

it is most likely some sort of dielectric grease used to keep the connections good. (so much for that) the "green" IS corrosion ...and may be your problem, clean it really well and see what happens.
 
  #8  
Old 04-10-2010, 03:31 PM
discomedic4's Avatar
Winching
Thread Starter
Join Date: Mar 2010
Location: Briar, TX
Posts: 749
Likes: 0
Received 4 Likes on 4 Posts
Default

I will give it a try and let you know what happens.
 
  #9  
Old 04-10-2010, 04:32 PM
discomedic4's Avatar
Winching
Thread Starter
Join Date: Mar 2010
Location: Briar, TX
Posts: 749
Likes: 0
Received 4 Likes on 4 Posts
Default

Ok. Well that didn't work except to make the light more consistent on the door switch but the key must still be in the on position for the light to come on by the door switch. No luck at all with the on position. Guess I will wait until I can order a new dome light assembly. Thanks for all the help guys. Sometimes it just has to be replaced, no fixing it.
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
jigray3
Discovery I
6
02-22-2019 06:29 PM
KennAR
Discovery I
4
12-26-2012 04:20 PM
dieselgeek
Discovery II
10
10-06-2009 01:49 PM
Blake518
Discovery II
14
04-10-2009 11:37 PM
sharonsbaby
General Tech Help
1
09-26-2007 09:10 PM



Quick Reply: Dome Light Electrical Demon



All times are GMT -5. The time now is 11:41 PM.