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GMFS slowest truck :read:
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5,501 Posts
Discussion Starter #1
What does each number stand for on a 30, 85, 86, 87 relay??? which terminal does what??? i used to know...but i forgot. Im settin up some KC offroad lights and would like to know today...TIA
 

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Wanna B Jack o all Trades
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9,823 Posts
you should have just PMed me!

if your running lights off a + switch use
30 as the constant + input off the battery
87 to the lights
86 to ground
85 to the switch so itll get a + when its on

if your running lights off a - switch use
30 as the constant + input off the battery
87 to the lights
85 to ground
86 to the switch so itll get a + when its on

of course it really doesnt matter much which ones between 85 and 86 get the + or - just as long as they get it
 

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GMFS slowest truck :read:
Joined
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5,501 Posts
Discussion Starter #3
I would have PMed you...but i thought this could also be useful for some other people in the future...had it been a very rare thing, you would have been the first person i woulda PMed...thx for the reply, time to start on the lights
 
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