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Proform fans ls

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Bryant6045

Probationary Member
3
0
Jun 30, 2026
BLACKSHEAR, Georgia
Wondering how to get Proform fans to be controlled on a ground trigger like the 0411 ECU controls it to!
 
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babyviper said:
Brushless fans? What's the part number?
I run proform brushless on my 2G, I just connected the green and red wire together. No need for a controller.
Click to expand...
They are positive trigger fans. I run a negative trigger ECU that's why I asked!

IHeartMyHonda said:
Not trying to be rude, but what are you doing here?
Click to expand...
Trying to get some answers on brushless fans that's all!
 
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Bryant6045 said:
They are positive trigger fans. I run a negative trigger ecu thats why I asked!
Trying to get some answers on brushless fans thats all!
Click to expand...

If the ECU triggers the ground, add a relay and configure it to switch to ground to turn on the fans. See below how to wire the relay.
4 pin relay
  • Pin 86: Connect to an ignition-switched +12V source (so the fan only runs when the key is on)
  • Pin 85: Connect to the ECU's fan control wire (the ECU will complete this ground to turn the fan on)
  • Pin 30: Connect to the battery positive (+12V) using an inline fuse. Minimum 10AWG here.
  • Pin 87: Connect to the positive (+) wire of the cooling fan. Minimum 10AWG here.
  • Ground: Connect the negative (-) wire of the fan directly to a solid chassis. Minimum 10AWG here.
 
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