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fog light relay


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sparxx513 
Copper - Posts: 56
Copper spacespace
Joined: February 21, 2014
Posted: June 02, 2014 at 12:15 AM / IP Logged  
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.
fog light relay -- posted image.
howie ll 
Pot Metal - Posts: 16,466
Pot Metal spacespace
Joined: January 09, 2007
Location: United Kingdom
Posted: June 02, 2014 at 1:04 AM / IP Logged  
Yes that's correct, don't forget to fuse the power supply.
10amp fuse should do it.
sparxx513 
Copper - Posts: 56
Copper spacespace
Joined: February 21, 2014
Posted: June 02, 2014 at 2:11 AM / IP Logged  
appreciate it, yes fuse of course....forgot it in my drawing lol
oldspark 
Gold - Posts: 4,913
Gold spacespace
Joined: November 03, 2008
Location: Australia
Posted: June 02, 2014 at 8:54 AM / IP Logged  
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.)
howie ll 
Pot Metal - Posts: 16,466
Pot Metal spacespace
Joined: January 09, 2007
Location: United Kingdom
Posted: June 02, 2014 at 8:56 AM / IP Logged  
How's about any local ignition circuits not having the current capacity?
oldspark 
Gold - Posts: 4,913
Gold spacespace
Joined: November 03, 2008
Location: Australia
Posted: June 02, 2014 at 9:10 AM / IP Logged  
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...
howie ll 
Pot Metal - Posts: 16,466
Pot Metal spacespace
Joined: January 09, 2007
Location: United Kingdom
Posted: June 02, 2014 at 9:21 AM / IP Logged  
No the alarm won't fire up the fog lights because the right hand relay is ignition controlled.
davep. 
Gold - Posts: 639
Gold spacespace
Joined: May 27, 2011
Location: California, United States
Posted: June 15, 2014 at 11:34 AM / IP Logged  
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.
howie ll 
Pot Metal - Posts: 16,466
Pot Metal spacespace
Joined: January 09, 2007
Location: United Kingdom
Posted: June 15, 2014 at 12:47 PM / IP Logged  
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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