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04 Deville cabin light problem


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r_2016
New User

Mar 16, 2011, 10:41 AM

Post #1 of 6 (1561 views)
04 Deville cabin light problem Sign In

   


Hi, I am having a problem with my cabin lights in my car. It started in Jan 2011, a month after I bought the car; it started by the lights would blow if you put on the right rear heated seat, the bottom element of the seat would also blow (very strange). The dealer said that it was a faulty temprature sensor in the seat and the seat would have to be replaced. I had them disconnect the seat and I have been driving it for a few weeks now with no problem with the lights. I went to check it this morning and I noticed that the lights would not come on. I am thinking maybe it could be a bad door switch, relay, or something else causing this issue. I know that it is not a dead short because they will work for awhile. Does anyone have any ideas? Thanks



Randy


re-tired
Veteran / Moderator
re-tired profile image

Mar 16, 2011, 8:59 PM

Post #2 of 6 (1549 views)
Re: 04 Deville cabin light problem Sign In

Im no caddy expert but i seem to remember that the interior lights do not come on during daylight.you can override with manual thumbwheel , i think . also check the lighter sockets for corrosion and objects in them (pennies). also try a google for caddy tsb 's.


LIFE'S SHORT GO FISH


r_2016
New User

Mar 17, 2011, 4:36 PM

Post #3 of 6 (1541 views)
Re: 04 Deville cabin light problem Sign In

   

Thanks. Yes, you are correct; the lights only come on at night. However, I can't even put the lights on manually. I will check that, thank you. A funny thing happened last night though; I was online looking for a solution and I found someone that had I think it was a Pontiac that was having a similar problem; it turned out to be the lighted vanity mirror was shorting out. Now, the last two times this happened my girlfriend had the car and it turned out she was using the sun visor (I never use it). The next day that I have off I am going to check. Have you ever heard of the vanity mirror shorting out the fuse? Thanks


zmame
Veteran / Moderator
zmame profile image

Mar 17, 2011, 5:15 PM

Post #4 of 6 (1537 views)
Re: 04 Deville cabin light problem Sign In

yes it is common if you use it alot.. the problem is the 2 wires run through the hinge and the constant moving and opening and closing wears out the wires.. then can make contact to body ground. I don't know if that would be related to your issue or not since I don't have access to diagrams for your caddy.


(This post was edited by zmame on Mar 18, 2011, 4:30 AM)


r_2016
New User

Mar 17, 2011, 6:43 PM

Post #5 of 6 (1523 views)
Re: 04 Deville cabin light problem Sign In

Ok, I am 99% sure that the vanity mirror lights are on the same circuit as the cabin lights. I would say that this is the problem then. We replaced the fuse about a month ago and they have been working fine until hours after putting the visor down I noticed that the lights were out again. I am going to take the visor down and check it out. Do you know if the vanity mirrors are plugged into the harness above the headliner; do the wires usually just pull down through the hole where the visor attaches to, if that’s the case I will just unplug the lights in the visor. Thanks


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Mar 17, 2011, 6:58 PM

Post #6 of 6 (1520 views)
Re: 04 Deville cabin light problem Sign In

I had that happen on a Lincoln SUV once and the wires were shorted right where they passed through the hole in the windshield frame.



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