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02-19-07, 04:06 PM
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#1 (permalink)
| | 250+ Club
Join Date: Dec 2005 Location: Naper-vile, IL
Posts: 269
| Interior Light (or lack thereof) Problems
I'm having some trouble chasing down some electrical gremlins since I put the truck back together. Initially, I had functional interior lights (the ones that work when the doors open); the only problem was the PSR door switch wasn't working. Now, I have no switched interior lights. The PSR switch still doesn't register that the door is open (the alarm rearms itself after 30 seconds, even when the door is open, and the door open light on the dash stays off), but the other switches register an open door (both on the dash and with the alarm). I have the light on the moonroof controls, both vanity lights, the moonroof, and the ignition ring light functional. After poring over the electrical FSM for a couple hours, I realized that I'm too electrically ignorant to troubleshoot this solo. Any suggestions as to where I should be looking for a short? Could the one switch being non-functional take all the others with it?
__________________ 94- Gray with cloth, 150K mi, pretty much stock, , no running boards, and no lockers  | 
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02-19-07, 07:00 PM
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#2 (permalink)
| | 250+ Club
Join Date: Jan 2007 Location: Texas, of course.
Posts: 258
| Sounds like a fuse was blown to me....
__________________ 1996 Dodge Dually(Bi-turboed) 
1995 Corvette
1984 Mazda Rx-7(347 Stroker)Yes,it's fast 
1991 Land Cruiser(Stock....for now) | |
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02-19-07, 07:50 PM
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#3 (permalink)
| | rockin' a 2WD 80...
Join Date: Aug 2006 Location: Pleasant Grove UT
Posts: 3,641
| Quote:
Originally Posted by Sully  Could the one switch being non-functional take all the others with it? | Nope. Neither of the rear switches no longer work in mine, yet the front switches work fine.
I second cam75, sounds like a blown fuse.
__________________ Lane Anderson
Daily- '91 TRD FJ80 "Katie" - 3H4, 267k, 3FE, Registry, ROTF, FB
Beater- '96 RZJ90 Prado RC - Red, SAS, geared REALLY low, locked F/R, 4-linked, coilovers, big tires on beadlocks, chopped, PIC
Classic- '63 VW Type 1 (Bug) - Anthracite, 43k, 1600cc, 100% restored, BLOG
Non-vehicle- '01 Crate 4-str bass - MapleBurst, Ernie Ball Slinks, '62 Fender P-bass pickups, PIC
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"VWs and Cruisers... How can you go wrong?!?" -CreeperSleeper
"You're not allowed to use words like 'zirconium' without giving more info. That's a rule somewhere." -Jon Held
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02-19-07, 08:07 PM
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#4 (permalink)
| | Forum Regular
Join Date: Dec 2006 Location: Chugiak, Alaska
Posts: 186
| I've got the same problem, the switches seem to be working (the door open indicators work for all the lights) but there is not dome light operation. The fuse is under the hood on the drivers side, mine is fine. Is there another fuse on the interior lights?
__________________
1993 FZJ80 OME J springs, front 3/4" spacer, 1" body lift, ARB bumper, Warn 8274 winch, Safari snorkel, custom sliders, 37x14 IROK's, 10" Centerline Cooler wheels, Con Fer roof rack etc.
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02-20-07, 06:24 PM
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#5 (permalink)
| | Forum Regular
Join Date: Dec 2006 Location: Chugiak, Alaska
Posts: 186
| Any other ideas? Post up if you've cured this before.
__________________
1993 FZJ80 OME J springs, front 3/4" spacer, 1" body lift, ARB bumper, Warn 8274 winch, Safari snorkel, custom sliders, 37x14 IROK's, 10" Centerline Cooler wheels, Con Fer roof rack etc.
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02-20-07, 06:31 PM
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#6 (permalink)
| | Site Addict
Join Date: May 2005 Location: Chapel Hill, NC
Posts: 1,149
| Quote:
Originally Posted by FJnAK I've got the same problem, the switches seem to be working (the door open indicators work for all the lights) but there is not dome light operation. The fuse is under the hood on the drivers side, mine is fine. Is there another fuse on the interior lights? | Dumb question: Does the dome light come on when you move the dome light switch to 'ON'?
__________________
SOLD: 1994 Red Pearl FZJ80, 202K, George's LEDs, PHH, etc.
1999 Millenium Silver 4Runner Limited, Toyo Open Country A/Ts
1993 Red Pearl 300ZX with some bling, K&N and a chip
Previous owner of sweet 1989 FJ62 with OME+KOs
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02-20-07, 07:05 PM
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#7 (permalink)
| | 250+ Club
Join Date: Dec 2005 Location: Naper-vile, IL
Posts: 269
| There are no dumb questions... oh, wait, this is the real world. Nevermind. 
No, the light stays off even when the switch is on.
__________________ 94- Gray with cloth, 150K mi, pretty much stock, , no running boards, and no lockers | |
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02-20-07, 07:14 PM
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#8 (permalink)
| | Forum Regular
Join Date: Jul 2004 Location: Usually in the house, sometimes in a tree or a tent or a boat
Posts: 115
| Interestiing. I lo\gged on tonight to research a problem I'm having with my Dome lights and I saw this thread and decided to check it out. When i open the driver or the passenger doors the lights come on. If I open the second doors on either side with the front doors closed the dome lights willl not come on. However the rear door will switch on both dome lights if the front doors are closed. Is there a switch on the rear passenger doos to make the dome light work when they are opened. Just put Georges dome lights in and I would like thenm to come on when taking the kids in and out.
__________________ 92 fj80 222K
98 4 Runner Ltd 150K  When its time to shoot, Shoot, Don't talk | |
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02-20-07, 07:38 PM
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#9 (permalink)
| | 250+ Club
Join Date: Dec 2005 Location: Naper-vile, IL
Posts: 269
| They are supposed to work when you open the door. Mine did, in fact, for a while. I just don't know where the short is that's killing mine, or how to find it. Of course, with my luck, it's possible that I just somehow managed to burn out both bulbs simultaneously. I probably should investigate that possibility lest I feel even dumberer.
__________________ 94- Gray with cloth, 150K mi, pretty much stock, , no running boards, and no lockers | |
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02-20-07, 09:14 PM
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#10 (permalink)
| | Site Addict
Join Date: May 2005 Location: Chapel Hill, NC
Posts: 1,149
| My rear door switches (both sides) have corroded from lack of use, I took them out and sprayed them with contact cleaner and they work a *little* better but not much. More R&R needed.... 
__________________
SOLD: 1994 Red Pearl FZJ80, 202K, George's LEDs, PHH, etc.
1999 Millenium Silver 4Runner Limited, Toyo Open Country A/Ts
1993 Red Pearl 300ZX with some bling, K&N and a chip
Previous owner of sweet 1989 FJ62 with OME+KOs
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02-20-07, 10:02 PM
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#11 (permalink)
| | Dumbass rookie dough-head
Join Date: Feb 2004 Location: Behind the bar
Posts: 437
| My issues were caused by faulty switches (see picture above). If you search the way-back machine, you'll find writeups on taking the switch apart, cleaning & reassembling.
I just ordered replacements from CDan-the-man... inexpensive and easy to install.
__________________ 1997 LX450, 132K, Lockers, LEDs, Nak-o-matic mic holder, CDL w/ Pin 7, 285/75R16 BFG AT, Tool Sleeve, Slee armor, Slee speedo gear, OME 2.5" Heavy, Prophylactic HG, Line-X in place of LX trim
KD0CXL
"You don't get to vote on the way it is... you already did!"  But you do get to vote on the way it will be.
"... but you have to compare it to the current political process where idiots elect liars to transfer wealth to crooks." -- Scott Adams
"Damn you, Hants White!" -- Dan-The-Man
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02-20-07, 10:23 PM
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#12 (permalink)
| | Site Addict
Join Date: Jan 2006 Location: San Diego
Posts: 1,141
| Are you getting +12v at either terminal of the dome light when it's turned on?
I'm guessing that you are not, since both switched paths to ground fail to give you light. If you are not getting +12v, then you know it's between the fuse and the dome light, and has nothing to do with the door switches.
__________________ 1994 FZJ80 - Original Owner, dual battery, 2.5" OME Heavy/Medium, 295/75/16 Terra Grapplers, Slee front and rear bumpers, dimmable Lightforce 170s, Hanna Sliders, Slee transfer case skid plate, Warn 9.5XP, LED interior lights, Slee interior spare tire carrier, yellow box, orange dot mod
2006 LX470 - Original Owner, Daily Drive, no mods | |
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02-21-07, 01:13 AM
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#13 (permalink)
| | Forum Regular
Join Date: Dec 2006 Location: Chugiak, Alaska
Posts: 186
| I've got no power at either terminal of the dome light, or map light.
__________________
1993 FZJ80 OME J springs, front 3/4" spacer, 1" body lift, ARB bumper, Warn 8274 winch, Safari snorkel, custom sliders, 37x14 IROK's, 10" Centerline Cooler wheels, Con Fer roof rack etc.
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03-13-07, 01:57 AM
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#14 (permalink)
| | 250+ Club
Join Date: Jan 2007 Location: Burbank, CA
Posts: 618
| my dome lights work in the ON position but do not work in the DOOR position. i know the car knows the doors are opened since the door open indicator lights up on the dash. anyone else have this problem? | |
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03-13-07, 09:57 AM
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#15 (permalink)
| | 250+ Club
Join Date: Apr 2005 Location: Florida
Posts: 255
| Quote:
Originally Posted by FJnAK I've got no power at either terminal of the dome light, or map light. | This is sounding like a plug was not reconnected during reassembly. Does that sound right? Let me get this straight; your dome light works if thefront doors open but not the back doors? So the circuit that delivers 12v to the back door switches isn't getting power. Would this be under the door sills or under the carpet? It has been a while since I looked. | |
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03-14-07, 06:46 AM
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#16 (permalink)
| | Dumbass rookie dough-head
Join Date: Feb 2004 Location: Behind the bar
Posts: 437
| Quote:
Originally Posted by FJnAK I've got no power at either terminal of the dome light, or map light. | The dome lights are switched on the GROUND side. If you have no +12V at either terminal of the light, then you have a fuse issue, or an open between the light and the fuse. Check/reseat the fuse, then bust out the multimeter if necessary. Quote:
Originally Posted by teejnut my dome lights work in the ON position but do not work in the DOOR position. i know the car knows the doors are opened since the door open indicator lights up on the dash. anyone else have this problem? | Test each door (with the switch in the DOOR position). If none of them trigger the light, then you'll probably need to bust out your multi-meter to locate the fault. Otherwise its most likely the door switches pictured above.
As mentioned before, some (a few) have had temporary luck simply cleaning the switches. I recommend replacing them for a permanent fix (call CrusierDan -- they're cheap, and easy to replace).
__________________ 1997 LX450, 132K, Lockers, LEDs, Nak-o-matic mic holder, CDL w/ Pin 7, 285/75R16 BFG AT, Tool Sleeve, Slee armor, Slee speedo gear, OME 2.5" Heavy, Prophylactic HG, Line-X in place of LX trim
KD0CXL
"You don't get to vote on the way it is... you already did!" But you do get to vote on the way it will be.
"... but you have to compare it to the current political process where idiots elect liars to transfer wealth to crooks." -- Scott Adams
"Damn you, Hants White!" -- Dan-The-Man
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03-14-07, 08:04 AM
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#17 (permalink)
| | Site Addict
Join Date: Dec 2006 Location: New York, NY
Posts: 1,916
| I had dome light issues that I traced back to a faulty diode. On my 91 there are 2 diodes that plug into the harness in the left kick panel. If you have the schemos for your truck you should see them.
I was not able to get +12 at the door switch, all other door switches worked fine.
However, my dome lights always worked manually, just not from the driver's door switch until the diode was replaced. | |
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Lka1988
Katie
