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Old 01-18-2004, 02:17 PM   #1
Scooby Newbie
Member#: 24099
Join Date: Sep 2002
Location: Maryland
1999 Impreza 2.5 RS
Rally Blue Pearl

Unhappy No Tail Lights, Parking Lights, or Instr. Panel Lights!

My tail lights, parking lights, and instrument panel lights don't work at all!

Here's the situation: I was driving around last night and my speedometer and gauges were flickering off and on. A few times I just turn all the lights off and turned them back on. Well after a few times of that, they stopped working completely. I thought it was just the instrument panel lights (the clock, door ajar light, high beam light, turn signals indicators and so on still work) but a friend pulled in my driveway last night and told me about the tail lights were out. I tested it by turning the light switch to the first position which is supposed to illuminate all these lights but nothing happens. I turned it to the next position and the headlights DO come on. When I hit my brakes the tail lights DO come on showing that I am braking. Also I have an aftermarket security/keyless entry system installed and when I arm the system, the lights flash as normal. I checked the fuses for the tail lights and parking lights (#5 10A) & illumination control (#12 10A) and they are not blown. I also have a sound system installed but I disconnected it to see if it made a difference but nothing.

I have no idea what the problem is. If anyone has any information, please post! Thanks!!
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Old 01-18-2004, 03:56 PM   #2
Scooby Guru
Member#: 22412
Join Date: Aug 2002
Chapter/Region: SWIC
Location: Albuquerque, NM
2012 Legacy 2.5GT
Ice Silver Metallic


Don't have the wiring diagram for your car, but in the WRX, the interior lighting and rear marker lights goes through a relay - the flickering makes me suspect a relay is at fault in your car as well (usually fuses just blow, they don't make intermittant contact) - it's called out as "FB12 tail and illumination relay" in the wrx
DrD is offline  
Old 01-19-2004, 06:26 AM   #3
Scooby Guru
Member#: 7327
Join Date: Jun 2001
Chapter/Region: NWIC
Location: Seattle, WA
2008 Mazdaspeed3
2006 Wrangler Sport


Originally posted by HBK
My tail lights, parking lights, and instrument panel lights don't work at all!
All of those lights share a relay. If you have done any aftermarket wiring on the lights, look VERY closely at your work to make sure nothing is shorted or damaged. THEN replace the 20A (yellow) fuse. I believe this fuse lives under the hood in that fusebox instead of under the dash.
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Old 01-19-2004, 12:11 PM   #4
Scooby Specialist
Member#: 465
Join Date: Oct 1999
Chapter/Region: NESIC
Location: Connecticut
2012 GTI


nhluhr has nailed it. I tried the foglight mod on my car, and that is what happened. All my connections were solid too, so I'm not sure why. Right now, I'm back to the stock wiring.
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Old 01-27-2004, 10:30 PM   #5
Scooby Newbie
Member#: 49550
Join Date: Nov 2003
Location: LaGrangville, New York
2000 Impreza 2.5 RS
Blue Ridge Pearl


i had a similar problem, i also have an aftermarket alarm on my car, aparently the guy who put my alarm system in tied it into the illumination fuse, a wire got lose from it and grounded to the chassis, blowing out the fuse,(its the illuminatio fuse under the dash, its a 10 amp, look at the diagram) i think it was drawing like 25 amps on a 10 amp circuit? brought it to a guy, cost me $360 for him to do something i couldve done, I dont know where they installed the unit in ur car, in mines its under the dash to the left of the steering wheel, if i were you and u were confident with workin on your car, drop down your dash and take a look at ur alarm unit, try disconnecting it then see if you still have the problem, good luck, its not fun having someone do electrical work on your car, cause you dont knwo how long itll take them, rack up the $$$
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Old 01-28-2004, 02:55 AM   #6
Scooby Newbie
Member#: 24099
Join Date: Sep 2002
Location: Maryland
1999 Impreza 2.5 RS
Rally Blue Pearl

Default Problem Fixed (for now)

Thank you all for writing in and giving you thoughts on the situation. That is what makes NASIOC so great!!

I took a look at the tail and illumination relay. I switched the tail and illumination relay with the relay for the rear defroster (which was located right beside the relay). They were the same model # and IT WORKED!! I checked Advance to see if they had the relay but they didn't so I decided to test it out myself. I hooked an ohm meter up to it and opened and closed the relay using a 12v source. When the relay is closed it should read 0 ohms telling you there is no resistance and the 12v is flowing through it. Well, I found that I was building resistance every time I opened and closed the relay. First reading 0 ohms. Second reading 2.4 ohms. Third reading, 5.9 ohms and the fourth, 24.3 ohms! It was build resistance every time. So the solution I came up with is to clean it! I cleaned the relay where it opened and closed and tested it once again. It read 0 ohms every time. I put it back where it belonged and haven't had a problem all week. Hopefully it just needed some cleaning.
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Old 12-01-2012, 04:40 PM   #7
Scooby Newbie
Member#: 339415
Join Date: Dec 2012
Default melvyn

really interesting i had to change air suspension height switch and a short knocked out dash lights would like to know where illumination relay is located legacy 01
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Old 12-01-2012, 05:17 PM   #8
Trust no one
Member#: 11170
Join Date: Oct 2001
Chapter/Region: Tri-State
Location: NYC
02 WRX
15 WRX/05 GTO


Please don't bump ancient threads, this one is eight years old.
Use the search before posting as your question may have been answered previously.
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