6v constant with 12v flash How to stop 6v
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Forum Name: General Discussion
Forum Discription: General Mobile Electronics Questions and Answers
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=74109
Printed Date: May 06, 2025 at 7:52 PM
Topic: 6v constant with 12v flash How to stop 6v
Posted By: ua///m3
Subject: 6v constant with 12v flash How to stop 6v
Date Posted: March 07, 2006 at 7:59 PM
Ok, well here is the situation. In my BMW 3 series for the parking lights and blinker, there is a single filament bulb. When I turn on the parking lights, there is a constant 6v signal and when I put the blinker on, there is a 12v signal sent for the bulb to blink. Basically, I do not want the parking lights to go on in the front for car show reasons, but I still want to retain my blinkers for when I am driving around. What can be done. I was thinking somewhere along the lines of a volt detector to detect only the 12v signal, but I have absolutely no idea of electronics. Any ideas would be great. thanks.
Replies:
Posted By: ua///m3
Date Posted: March 09, 2006 at 5:08 PM
bump. no one knows. Is it possibe to build some sort of a relay or circuit???
Posted By: mad550
Date Posted: March 09, 2006 at 5:36 PM
Try a crystal diode, they only conduct when the voltage reaches a curtain threshold eg:11.5v just ask your local electronics supplier, also known as a "crash" diode.
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Nothing is impossible!
Do it right the first time or don't do it at all.
Posted By: datspeed77
Date Posted: March 29, 2006 at 5:25 PM
You can hook up a SPDT relay directly to the blinkers. Use your 12V trigger off of your blinkers to trigger the relay.
Posted By: geepherder
Date Posted: March 30, 2006 at 4:49 AM
That alone won't work because 6v will trigger the relay. You can probably wire a resistor in series with the coil (keep trying higher values) until 6 volts does not trigger it. You could use a zener diode as suggested above, however, just use it to trigger a relay.
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My ex once told me I have a perfect face for radio.
Posted By: datspeed77
Date Posted: March 30, 2006 at 10:53 AM
geepherder wrote:
That alone won't work because 6v will trigger the relay. You can probably wire a resistor in series with the coil (keep trying higher values) until 6 volts does not trigger it. You could use a zener diode as suggested above, however, just use it to trigger a relay.
Wow! I didn't know 6v will trigger a 12V relay! Are you sure? I remember on the 2002 Ford Taurus, the remote turn on is 6V. I tried to trigger a bosch relay with it and it didn't work.
Posted By: geepherder
Date Posted: March 30, 2006 at 11:19 AM
I've done it.
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My ex once told me I have a perfect face for radio.
Posted By: datspeed77
Date Posted: March 30, 2006 at 11:22 AM
geepherder wrote:
I've done it.
Maybe the bosch relay won't. What kind of relay is it? I'd love to have those in the shop!
Posted By: geepherder
Date Posted: March 30, 2006 at 11:57 AM
I didn't realize that was a problem, maybe I just got lucky. I used a Bosch-type, not positive of the brand, but it was used in a Ford as well.
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My ex once told me I have a perfect face for radio.
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