fog light relay
Printed From: the12volt.com
Forum Name: Relays
Forum Discription: Relay Diagrams, SPDT Relays, SPST Relays, DPDT Relays, Latching Relays, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=136734
Printed Date: April 29, 2024 at 12:47 AM
Topic: fog light relay
Posted By: sparxx513
Subject: fog light relay
Date Posted: June 02, 2014 at 12:15 AM
Wanted to run this by someone. I am installing fog lights. i want them to turn on with the parking lights, but not flash when i arm and disarm my alarm. i figure I can do this by having the parking light relay get its input from another relay that is powered by switched ignition. Can someone look over my diagram and let me know if this will work for what im trying to accomplish? Thanks in advance.
Replies:
Posted By: howie ll
Date Posted: June 02, 2014 at 1:04 AM
Yes that's correct, don't forget to fuse the power supply.
10amp fuse should do it.
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Amateurs assume, don't test and have problems; pros test first. I am not a free install service.
Read the installation manual, do a search here or online for your vehicle wiring before posting.
Posted By: sparxx513
Date Posted: June 02, 2014 at 2:11 AM
appreciate it, yes fuse of course....forgot it in my drawing lol
Posted By: oldspark
Date Posted: June 02, 2014 at 8:54 AM
What's the difference with not having the first relay and wiring IGN (switched) 12V to 30 "12V input" instead?
And then there's the old phantom GND trick... (IGN +12V else alarm flash to 85 etc.)
Posted By: howie ll
Date Posted: June 02, 2014 at 8:56 AM
How's about any local ignition circuits not having the current capacity?
-------------
Amateurs assume, don't test and have problems; pros test first. I am not a free install service.
Read the installation manual, do a search here or online for your vehicle wiring before posting.
Posted By: oldspark
Date Posted: June 02, 2014 at 9:10 AM
Cool - I was worried my logic was flawed...
Yeah, so any IGN source that can power the fogs...
But if relay #2 86 is from the park switch before any diodes and alarm connections...
Posted By: howie ll
Date Posted: June 02, 2014 at 9:21 AM
No the alarm won't fire up the fog lights because the right hand relay is ignition controlled.
-------------
Amateurs assume, don't test and have problems; pros test first. I am not a free install service.
Read the installation manual, do a search here or online for your vehicle wiring before posting.
Posted By: davep.
Date Posted: June 15, 2014 at 11:34 AM
Why add complexity and failure points? Let the alarm flash the fogs. It doesn't harm anything. Or turn the fogs off with their switch when you're done with them, and they won't flash with the alarm.
Keep it simple = fewer problems.
Posted By: howie ll
Date Posted: June 15, 2014 at 12:47 PM
Davep, whilst I appreciate your comments, most people aren't as logical as your me. Mods, could we have a like button. I'd give a like to your post.
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Amateurs assume, don't test and have problems; pros test first. I am not a free install service.
Read the installation manual, do a search here or online for your vehicle wiring before posting.
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