overhead dome lights wont work

YFZracer32

New Member
Jan 9, 2006
8
0
0
Connecticut
well i just got my supra a few weeks ago so im still a newbie at this kinda thing but my overhead dome lights havent worked since i got the cars (the ones next to the mirror). I already changed the fuse in the drivers side kick panel and both light bulbs in the lights and still nothing, has this happened to any of you? what do you think is causing it? also my signal lights went out the other day randomly, the fuse isnt blown and the hazard lights still work what do you think is causing this? The flasher? sorry for the stupid questions like i said im still new to my supra.
 

IJ.

Grumpy Old Man
Mar 30, 2005
38,728
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I come from a land down under
Mine haven't worked since I got the car in 97 and after reading a few posts here I decided to pull them out for a look.

While they were out I blew the 20 years of dead bugs out checked for corrosion and refitted them thinking it was an electronic issue.

Imagine my surprise that they now work! :)

Open a door then press the plastic beside the light a bit and see if they come on.
 

JonoTurbo

Going for broke
Mar 30, 2005
670
0
0
40
CT
Sometimes the gound in the housing goes bad and doesn't connect right and you just clean it up and tighten up the screws on it and the lights will work again.

On my '87 though the dome lights quit and i just couldn't figure out what was wrong, turned out to be a break in the 12v line somewhere in the roof.

If the vanity mirror lights work and not the center ones then it's probably just the ground though.
 

89 Black Beauty

Supra Alarm & Stereo Guy
Jan 11, 2006
42
0
0
Abbotsford
i had the same problem, allthough it wasn't the ground in my case (first off check your grounds behind the light).

It ended up that it was the integration relay (i think that was the name, i'd check sf but it's down at the moment)
This is a plastice box monted onto the backside of the fuseblock in the drivers kickpanel, you'll have to unbolt the fusepanel and turn it arouns and unclip the integration relay box.
Once it's out, open this box up and you'll see a bunch of circuits, theres a one large resistor, test it for continuity... in my case it wasn't conducting so we i just soldered in a wire and removed the resistor completely. That fixed it and as far as i'm concerned you don't even need the resistor.

goodluck i hope that helps

p.s. expect to be on your back for a good 30mins.
 

supra90turbo

shaeff is FTMFW!
Mar 30, 2005
6,152
32
48
40
MA, 01440
Mine were dead when I bought my car in '02.
Got mad one day and gave 'em a little rap, then one of them worked!
Not a biggie, though, since if I actually push the button, they both will work...
 

isnms

United States of America
Mar 30, 2005
2,145
0
36
Oklahoma
i80.photobucket.com
JonoTurbo said:
If the vanity mirror lights work and not the center ones then it's probably just the ground though.
^true

is the door switch in the right position?
do they work with the individual buttons on the dome light assemble?

my problem was the rivets in the assembly not making good contact.
 

suprastanger507mgte

2x88+2x89+1x91+2x92=ME
Apr 5, 2005
3,148
6
38
Hayward , Ca
89 Black Beauty said:
i had the same problem, allthough it wasn't the ground in my case (first off check your grounds behind the light).

It ended up that it was the integration relay (i think that was the name, i'd check sf but it's down at the moment)
This is a plastice box monted onto the backside of the fuseblock in the drivers kickpanel, you'll have to unbolt the fusepanel and turn it arouns and unclip the integration relay box.
Once it's out, open this box up and you'll see a bunch of circuits, theres a one large resistor, test it for continuity... in my case it wasn't conducting so we i just soldered in a wire and removed the resistor completely. That fixed it and as far as i'm concerned you don't even need the resistor.

goodluck i hope that helps

p.s. expect to be on your back for a good 30mins.

Its a really easy fix, jst pull the burnt out resistor and solder a new one in.
You can actually see the resistor kinda burnt up.

Here ya go :

http://www.supras.com/06/techcenter/display.php?QID=53
 

staticpat

Supra Chair!
Mar 30, 2005
450
0
0
40
Birmingham, AL
I've had the same problem on two supras. The ground is connected through a rivet in the map light assembly. With age the rivet gets corroded and won't conduct at all. You'll need to drill out the rivet and solder the wires straight.
 

chriso

Supranian
Apr 5, 2005
917
0
0
Bay Area, CA
Mine had loose rivets also. I took the assembly out and used a center punch to "gently" tighten up the rivets. Don't go too hard or you will punch the rivets through or break something.