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E-fan wiring

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Old 11-07-2006, 08:59 AM
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Default E-fan wiring

I currently have a 3-relay wiring on me e-fans-
PCM on = both fans slow - (wired in series)
AC on = 1 fan high
PCM & AC = 2 fans high

Is there a way were I can set the pcm to turn both fans on low at a certain temp and then both fans on high at a diffrent temp , like the 05 trucks have two temp setting for the fans,
Can I do this and how?
Thanks
Old 11-07-2006, 09:05 AM
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What year truck are you doing this on?
Old 11-07-2006, 09:05 AM
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Its is a 99 model but has an 02 PCM.
Old 11-07-2006, 09:08 AM
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You can only do that type of operation with a 03+ PCM.

refer to this thread.
link
Old 11-07-2006, 09:09 AM
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Thanks for the help!
Old 11-07-2006, 09:14 AM
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Sure and sorry.
Old 11-08-2006, 09:10 AM
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You Could buy another fan controler. That way you have two different settings for the engine...
I have mine come on both low at 170 with the aftermarket controler, then with pin 44 when the coolent gets to 195 both on high.
Old 11-08-2006, 09:16 AM
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Originally Posted by Wilde Racing
You Could buy another fan controler. That way you have two different settings for the engine...
I have mine come on both low at 170 with the aftermarket controler, then with pin 44 when the coolent gets to 195 both on high.
Thanks, that is will i will end up doing
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