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12576106 Pinout for Fans......

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Old 07-06-2010, 08:07 PM
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Default 12576106 Pinout for Fans......

I'm looking for a pinout for a 12576106 PCM . I reflashed the computer to a 04 GTO Tune.... The PCM was from a 03 GMC Yukon.

I can't figure why I can't get the fan to turn on. Looking for what pin , so far I saw two pins on Lt1 Swap... But no luck... I'm using the computer to flip a relay to turn a flew a lite syclone fan...
Old 07-07-2010, 03:44 PM
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Check this thread

https://ls1tech.com/forums/conversio...y-pinouts.html
Old 07-07-2010, 05:16 PM
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Well since my link didn't help any, how do you have your fan relays wired up?
Old 07-07-2010, 05:53 PM
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I tried a few pcm pins ...
#85 on the relay is grounded
#86 (switch) Computer wire
#30 12 volt
#87 To fans



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