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Fans triggers

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Old 11-02-2012, 07:41 PM
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Default Fans triggers

Need help !!!

Just got done installing a Holley Dominator Ecu and don't know how to trigger the stock fans. I dont have any schematics. Anybody know how the fans are controlled on 07 silverado. I want to trigger them by aftermarket ecu. All options are open.

Need to get this thing on the road Thanks
Old 11-03-2012, 12:48 AM
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The fans are controlled by their own relay controller that IIRC is triggered by grounding within the ECM to activate the relays.
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