 Wonky headlight..., back again (post 17) |
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| VaccaRabite |
 Apr 13 2010, 07:45 AM
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En Garde!  Group: Admin Posts: 13,729 Joined: 15-December 03 From: Dallastown, PA Member No.: 1,435 Region Association: MidAtlantic Region 
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Last fall, the drivers side headlight went out. it was miswired - I am not sure how it was working to begin with. Fixed the wiring, and everything worked great.
Saturday I washed my car. Today, I decided to drive to work, even though rain was threatening, weather said I would be clear. But it was cloudy this morning, so I put the lights on. I got no beam from the drivers side light, again. Also, I noticed that the charging system was right at 12 volts, where it is usually at 13. May be unrelated. I know that the wiring at the light is correct. Any idea where to start trouble shooting? Zach |
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| VaccaRabite |
May 25 2010, 01:11 PM
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En Garde! Group: Admin Posts: 13,729 Joined: 15-December 03 From: Dallastown, PA Member No.: 1,435 Region Association: MidAtlantic Region
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One test that I am going to do this evening, which should determin if the issue is upstream or downstream of the fuse box:
Unhook the upstream yellow wire that powers fuse 3&4 (low beam headlights) from the fuse panel. that should isolate the circuit from any of the relays or switches. Put a test wire from battery + to input fuse 3. The lights should turn on, as I am taking all the switches and relays out of the circuit. If I get full power, I know the issue is up stream of the fuse panel. If I get dim lights, I know the issue is at the fuse panel or down stream. Any errors with this logic? I should note that the lights are open right now with the motor relays removed so that they stay that way. Test would not work so well if I was lighting up the inside of the light housing. Zach |
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Posts in this topic
Vacca Rabite Wonky headlight... Apr 13 2010, 07:45 AM
tradisrad I also see a voltage drop when my lights are on fr... Apr 13 2010, 07:49 AM underthetire I've had a problem with my old sealed beams be... Apr 13 2010, 11:11 AM jsayre914 dont woory about the voltage drop zach, it isnt a ... Apr 13 2010, 12:07 PM Vacca Rabite Mike may be over today. He was planning on being o... Apr 13 2010, 12:10 PM TROJANMAN Did you check the relay? Apr 13 2010, 12:20 PM
Drums66
Did you check the relay?
ECHO echo(also headlig... Apr 13 2010, 12:43 PM Vacca Rabite Not yet. Noticed the light was out when I pulled ... Apr 13 2010, 12:24 PM Spoke Start checking voltages right at the light.
If yo... Apr 13 2010, 02:32 PM Vacca Rabite When I got home tonight I took a few minutes to tr... Apr 13 2010, 07:03 PM Dave_Darling Sounds like the brighter light is grounding itself... Apr 13 2010, 09:10 PM Vacca Rabite Dave, I considered this. I think it is probably t... Apr 14 2010, 06:06 AM Vacca Rabite Okay, so new puzzle.
I fixed the first problem. ... Apr 16 2010, 08:41 PM Dave_Darling How did you measure the voltage? Between which an... Apr 16 2010, 09:20 PM Vacca Rabite I measured voltage at the headlight terminals.
Wh... Apr 17 2010, 06:52 AM Vacca Rabite Well, Mike helped me chase the problem, and we fou... Apr 19 2010, 08:08 AM Vacca Rabite So, this problem still exists.
I had been letting... May 24 2010, 09:47 PM Spoke
Low beams are only getting 6 volts at the bulb.
... May 25 2010, 11:12 AM Dr Evil Maybe I can help you out sometime :rolleyes: May 24 2010, 11:06 PM Vacca Rabite
Maybe I can help you out sometime :rolleyes:
Did... May 25 2010, 06:29 AM Dr Evil I remember nothing. I would have to start at it so... May 25 2010, 09:41 AM Vacca Rabite Just finished my wire test.
Everything from the fu... May 25 2010, 06:20 PM Dr Evil I may have a spare. I know where I can get one, an... May 25 2010, 06:45 PM Spoke Disconnect NEG from Battery and pull out your swit... May 25 2010, 08:38 PM Vacca Rabite I'm back inside for the night, and I made prog... May 25 2010, 08:57 PM Spoke I wouldn't expect a rubbed wire or anything li... May 25 2010, 10:11 PM Vacca Rabite I'll clean them tonight and report back.
I am ... May 26 2010, 06:49 AM |
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