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Last edited by Mikeownow; 04-14-2010 at 12:08 PM.
Well.....if you get some wire run both headlights togather and run that wire into your car. Then run a wire with a 15 amp fuse inline from your positive battery post into your car. Buy a cheap toggle and and connect both wires in the car and now you have headlights. Its not pretty but at least they will work.
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Last edited by Mikeownow; 04-14-2010 at 12:08 PM.
Probably just a wire or connector has come loose. Make sure they are all plugged in.
84 Mustang GT, 91 roller motor,Gt40 heads, vic jr intake, quickfuel 650 carb, MSD ignition, TFS stage 1 cam, 3.73gears in 8.8, rear disc conversion, some nitrous.
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Last edited by Mikeownow; 04-14-2010 at 12:07 PM.
Left a ground off?
1985 Mustang GT Convertible
Stock and original @ 213k, except for dynomax ultraflos.
Check grounds . That was my issue when I changed my Front end .
Rus
1983 5.0 5 spd GLX convertible.
Pony Wheels,3G alt conversion,subframe connectors
http://www.cardomain.com/id/jrflans
previous 4 eyes
1983 5.0 coupe
1982 gt 5.0 auto
1982 gt 5.0 t top 4 spd
Yep, +2 for ground issues
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'79 Mustang Turbo (T4 project on it)
That is a horrible solution, even for a temporary one. Two headlights draw more current than 15 amps, and chances are a 'cheap' toggle switch will malfunction or melt under the load. I know you suggested a fuse, but it's just not a good idea.Originally Posted by my83horse
It's also possible to be bad grounds, check on the rad support on either side. There are two black wires that have round terminals which are bolted on top of the rad support. These are the headlight ground wires. If it's not that, remove your head light switch and test the leads to see which ones have power and which dont. It's possible that your headlight switch just happened to go bad at the same time, could just be a coincidence. Then, check the headlight plugs for power. Since all four lights turn on when you turn on your high beams, that tells me that your headlight switch is faulty.
SS
1986 GT T-Top 5.0, waiting on trans and IRS swap.
1988 GT Ragtop, 5.0, T5, 3.73, 03 Cobras with Nittos
1989 LX Ragtop, 5.0, AOD, shift kit, Pony wheels, baby cam, X pipe and Flowbasterds.
1984 SVO needs TLC
+3 on checking grounds. Too often on here that seems to be the root of electrical issues. Be sure they are clean and tight!
86 Mercury Capri GS 2.3L
11 Ford Ranger XL 2.3L
10 Ford Focus SE 2.0L
19 Years of Foureyedpride.com
It is not the ground for headlights. The "flash-to-pass" circuit uses the same grounds as the hi and low circuit, and the topic started said the flash-to-pass works.
It's either the some of the wiring from the battery to the light switch, the light switch itself, some of the wiring between the light switch and the dimmer switch (part of the multi-function switch), or the dimmer switch itself.
From the 1985 Mustang/Capri EVTM:
HEADLIGHTS
TROUBLESHOOTING HINTS
NO HEADLIGHTS, PARK LIGHTS OK
- Check for voltage at BK/O wire of Light Switch. If bad, check harness back to Battery.
- Check for voltage at R/Y wire of Dimmer Switch. If bad, check continuity of wire and Light Switch.
- Check continuity of Dimmer Switch. Replace if bad.
Last edited by FoxChassis; 12-01-2008 at 08:36 AM. Reason: spelling
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Last edited by Mikeownow; 04-14-2010 at 12:07 PM.
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