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Author
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Topic: Taillight housing wiring problem
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Fastback68
Gearhead Posts: 2703
From: Sucat, Paranaque, Philippines
Registered: Jul 99
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posted 05-02-2003 03:19 AM
  
I'm having my car completely rewired, and my electrician can't figure this out, even with all my references (including Osborn's electrical manual).
In 67/8 (and other years?), the taillight housing has one bulb, with two contacts. These are supposed to handle the taillight itself, the brake light and the turn signal. My electrician can't figure out how to do this without adding another bulb. I told him I thought the brake light and the turn signal used the same filament, but he thinks this sounds crazy. Am I crazy?
I know other electricians have agreed with him in the past, 'cos I have SIX rusty old housings with new holes carved in them for extra bulbs!
Before he carves new holes in my new housings, could someone spell out what we're missing here?
Thanks as always,
Simon
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Steve-UK
Gearhead Posts: 169
From: Wickford, Essex, England
Registered: Jan 2003
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posted 05-02-2003 05:25 AM
Hi SimonOn my 66 coupe the brake and turn signal use the same filament. I would guest yours would be the same. Steve
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Fastback68
Gearhead Posts: 2703
From: Sucat, Paranaque, Philippines
Registered: Jul 99
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posted 05-02-2003 06:48 AM
That's a good start -- thanks Steve! Now how does this work? I have the wiring diagram right here, so where does the magic take place that allows one filament to have two functions?
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horseballz
Gearhead Posts: 284
From: LasVegas,NV
Registered: Dec 99
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posted 05-02-2003 11:10 AM
Simon,
Hokus Pokus Alacazam,  in the turn signal switch.
Gene
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Fastback68
Gearhead Posts: 2703
From: Sucat, Paranaque, Philippines
Registered: Jul 99
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posted 05-02-2003 12:37 PM
Aaah, oooh, Gene, don't disappear! My electrician doesn't come back for three days.[This message has been edited by Fastback68 (edited 05-05-2003).]
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Fastback68
Gearhead Posts: 2703
From: Sucat, Paranaque, Philippines
Registered: Jul 99
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posted 05-05-2003 09:30 PM
OK, we're back, and my electrician is still not happy  Here's a question from me, not him ...
If you apply the brakes as you approach a turn (so both the switches are active at the same time), does the turn signal override the brake light, or does the brake light simply get brighter as the indicator flashes?
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mustangs68
Moderator Posts: 20992
From: Buckroe Beach Va MCA#39406 M&M #12 Member Mustang Club of Tidewater
Registered: May 99
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posted 05-05-2003 09:35 PM
they both work indepently...when the brake is pressed the switch activates the brake light while the indicator flashes.Take a look at your newer car..works the same way. sam
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RonnieT
Gearhead Posts: 798
From: Port Allen, La. 70767
Registered: Jun 99
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posted 05-05-2003 10:08 PM
Simon,the turn signal switch is just what it says a switch, when the turn signals are not activated the feed to both lights comes from the brake light switch, when you flip on the right turn signal the contacts in the TSS send the left bulb feed from the brake light switch and the right bulb power from the turn signal flasher, flip it to the left and the circuits are reversed. I hope I did not confuse you too much, but thios is the only way I could think to discribe the operation of the TSS. ------------------
Ronnie
69 mach1 351W-4V engineless at the time!
70 Torino GT 351C-4v with a "shaker"
Mustangs and More Member #23
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Fastback68
Gearhead Posts: 2703
From: Sucat, Paranaque, Philippines
Registered: Jul 99
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posted 05-05-2003 11:02 PM
Ooo, Ronnie, let me just digest that. Sam, you say ...
quote:
Take a look at your newer car..works the same way.
The ol' indicator and brake using the same lens is an American thing, and even then it's dying out, right? I just checked out my Chevy Silverado, 2001 model, and it has a separate amber indicator lens.
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Fastback68
Gearhead Posts: 2703
From: Sucat, Paranaque, Philippines
Registered: Jul 99
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posted 05-05-2003 11:32 PM
Bingo! Ronnie, your lefts and rights had our heads spinning, but we both THINK we understand. Thanks a lot!
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mustangs68
Moderator Posts: 20992
From: Buckroe Beach Va MCA#39406 M&M #12 Member Mustang Club of Tidewater
Registered: May 99
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posted 05-06-2003 05:29 PM
Simon your rear has amber?
sam[This message has been edited by mustangs68 (edited 05-06-2003).]
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