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quick fan relay question

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Old 02-26-2010, 12:45 PM
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Default quick fan relay question

OK I did a search and did not find the correct answer so here goes. I have an aftermarket harness for my LS6 in my 1971 Camaro and there are 2 wires coming out of the harness from the computer for the fans.


Doesn't the computer actually complete the ground to a remote relay for my aftermarket fans????? These wires need to be hooked to the ground side of my fan relays??
Thanks for any help
Old 02-26-2010, 12:55 PM
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Yes, computer provides a ground to pretty much every relay control. Only exception I've run across is the fuel pump.
Old 02-26-2010, 03:39 PM
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Thanks for the reply. So I can hook these wires to the ground terminal on my relays and all should be good??
thanks ken
Old 02-28-2010, 06:12 PM
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yes, that is correct. You got the rest of the fan wiring figured out? If not, just ask.
Old 02-28-2010, 09:34 PM
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just in case you need it:
30 – Fused 12 Volt source (generally battery or alternator)
85 – Ground
86 – Triggering switch (generally key-on or Hobbs switch for F/I)
87 – On when relay powered (receives power from 30)
so your ground from pcm goes on the 85 prong
hopes this help.....
Old 02-28-2010, 09:39 PM
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Cool

Originally Posted by fptransport
just in case you need it:
30 – Fused 12 Volt source (generally battery or alternator)
85 – Ground
86 – Triggering switch (generally key-on or Hobbs switch for F/I)
87 – On when relay powered (receives power from 30)
so your ground from pcm goes on the 85 prong
hopes this help.....
Cool, thanks FP!
Old 03-01-2010, 02:35 PM
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Great thanks for the help.



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