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-   -   no dash lights (https://www.yotatech.com/forums/f116/no-dash-lights-180234/)

Cwaters1184 Apr 21, 2009 07:57 AM

no dash lights
 
my dash lights went out (all of them) and i cant figure out what the deal is. fuses are good, and everything else works fine. any idea's? :think:

DeathCougar Apr 21, 2009 08:02 AM

Fuses under the dash AND the hood are good?

Check to make sure the dash light rheastat (aka dimmer switch) isn't turned all the way down

Cwaters1184 Apr 21, 2009 08:05 AM


Originally Posted by DeathCougar (Post 51122238)
Fuses under the dash AND the hood are good?

Check to make sure the dash light rheastat (aka dimmer switch) isn't turned all the way down

dimmer is good. checked both boxes.

89whitetoyota Apr 21, 2009 12:38 PM


Originally Posted by Cwaters1184 (Post 51122240)
dimmer is good. checked both boxes.

The bulbs blown?

Cwaters1184 Apr 21, 2009 01:21 PM


Originally Posted by 89whitetoyota (Post 51122443)
The bulbs blown?

i considered that, but all of them at once? not likely. i really dont wana rip the dash apart. lol

89whitetoyota Apr 21, 2009 07:14 PM


Originally Posted by Cwaters1184 (Post 51122490)
i considered that, but all of them at once? not likely. i really dont wana rip the dash apart. lol

If it is the case, you could tear that ish down in less than 30. It is unlikely but if all else has failed, and you have limited some electrical malfuction to the gauge cluster what else can you do

Cwaters1184 Apr 21, 2009 07:35 PM

yeah im hoping its just a ground that came loose or something.

iamsuperbleeder Apr 21, 2009 07:38 PM

hmmm... all of the lights... so all of the indicator lights AND the back-lights that come on with your head lights? or just one of those two group or lights?

you're dimmer function works by adjusting the resistance of the GROUND to the lights. It's possible the dimmer switch itself is bad, or has a bad ground itself; does the light for you climate controls work? if not, I would look at that dimmer switch, or the wiring to it, as the cuplrit


if it's the indicator lights, I'd pull the cluster out and make sure that for whatever reason one of the plugs didn't vibrate out or something. the input to those lights run off all sorts of circuts that all come to gether in the wiring harness there, so it would have to be a common ground, or a common 12v + coming into the cluster there that has lost connection

:cheers:

86autoyota Apr 21, 2009 07:58 PM

the dimmer switch itself being bad is a possibility, as was stated before, pull the switch and bypass it really quick before you tear apart the dash, i think it would be worth a shot. When this happened to me i tore the dash apart, didn't find any problems, then checked the dimmer and realized that was the culprit.

Kiroshu Apr 21, 2009 08:04 PM

Try cleaning your bat terminals first and if not.... then your gonna have to get to tearin down...

Cwaters1184 Apr 21, 2009 08:21 PM


Originally Posted by iamsuperbleeder (Post 51122862)
hmmm... all of the lights... so all of the indicator lights AND the back-lights that come on with your head lights? or just one of those two group or lights?

you're dimmer function works by adjusting the resistance of the GROUND to the lights. It's possible the dimmer switch itself is bad, or has a bad ground itself; does the light for you climate controls work? if not, I would look at that dimmer switch, or the wiring to it, as the cuplrit

:cheers:

all the indicator lights work on the cluster its just the back lights to the cluster, altimeter, heater controls etc. ill deff checkout the dimmer switch though thanks.


Originally Posted by Kiroshu (Post 51122883)
Try cleaning your bat terminals first and if not.... then your gonna have to get to tearin down...

terminals are new :)

iamsuperbleeder Apr 21, 2009 08:28 PM

yeah, definately sounds like the dimmer circut to me, so long as all the other lights outside the vehicle as working (parking lights and head-lights). if the outside lights are not working either, and the fuses are good, the only other logical thing would be the switch assymbely on the column

let us know what you find; good luck! :great:

Cwaters1184 Apr 21, 2009 08:34 PM

yep everything else works. So if it is the dimmer, whats the best way to go about fixing it? someone mentioned bypassing it? thanks..

iamsuperbleeder Apr 21, 2009 08:41 PM

yeah I honestly can't remember how many wires are running into the switch itself, but I believe it's only 2. in which case it's easy to bypass it. just unplug it, and make a jumper wire (using a 3"-4" length of wire and crimp a male terminal on each end) to connect the two ends together so full power will go through it. then you'll have the lights untill you get around to replacing the switch. that's also a good way to test to see if it's the switch :great:

Cwaters1184 Apr 21, 2009 08:44 PM

awesome, thanks :) ill give it a whirl in the morning

iamsuperbleeder Apr 21, 2009 08:51 PM

yeah, it's really hard to tell from any pictures that I personally have, but by looking at this one, it CAN'T be more than 2 wires :D

http://i113.photobucket.com/albums/n...dom/dimmer.jpg



should be pretty much the same on your 87 :great:

Cwaters1184 Apr 21, 2009 08:56 PM

cool, looks like you had fun that day ;)

iamsuperbleeder Apr 21, 2009 09:01 PM


Originally Posted by Cwaters1184 (Post 51122951)
cool, looks like you had fun that day ;)

lmao, yeah, all that to install a brushed aluminum gauge bezel, that's since been done away with in favor of an SR5 cluster :roll:

Cwaters1184 Apr 22, 2009 08:59 AM

well it was indeed the dimmer, thanks guys your the best. the fix was really easy though, b/c all i had to do was plug it back in. lol! seriously i dont know how that thing came undone. now im surrounded by a sea of pretty green lights :)

iamsuperbleeder Apr 22, 2009 03:52 PM


Originally Posted by Cwaters1184 (Post 51123262)
well it was indeed the dimmer, thanks guys your the best. the fix was really easy though, b/c all i had to do was plug it back in. lol! seriously i dont know how that thing came undone. now im surrounded by a sea of pretty green lights :)

good stuff! glad we could help :great:

don't you just love it when it's something simple and stupid like that :roll:


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