05-06-2013, 02:25 PM | #1 |
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electric fan switch ?
have a 71 swb .with 05 6.0L and im using dual elect. fans
my problem is i dont know where i can mount the switch...can be possible water pump just before the thermostat.? thanks..ronald |
05-06-2013, 06:42 PM | #2 |
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Re: electric fan switch ?
I did not use a switch, I let the PCM control the fans. Is that a option for you?
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Mark ----------------------- Crash's 69 4x4 SWB Crash's Roof over Lake Home Crash's 1988 Land Cruiser Build |
05-07-2013, 06:28 PM | #3 |
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Re: electric fan switch ?
how can i do that? do yuo know wich pin and color wire ? the pcm has to be reprogram...thanks ronald
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05-07-2013, 06:37 PM | #4 | |
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Re: electric fan switch ?
Quote:
Fan 1 is blue connector pin 42 Fan 2 is green connector pin 33
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05-11-2013, 02:14 PM | #5 |
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Re: electric fan switch ?
mark .the pin 42 in the blue connector goes to .
sending side of the relay?....thanks ronald |
05-11-2013, 07:21 PM | #6 | |
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Re: electric fan switch ?
Quote:
The PCM takes either of the Fan Control wires to ground to energize the fan speed requested by the logic in the PCM. Below is a drawing of how I wired my fans. When Fan1 control is low (ground) both fans turn at low speed. The three relays create a series circuit for the fans. When Fan2 control is low (ground) both fans turn at high speed. The three relays create a parallel circuit for the fans. Hope this helps..
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05-11-2013, 09:47 PM | #7 |
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Re: electric fan switch ?
So if I wanted to complicate things (great drawing by the way)How would I wire the trinary switch for the AC in so that when I turn on the AC it would automatically kick everything up to high. Also, I'm a bit confused I thought one fan ran, then the other fan kicked on when the computer said it needed it. Are most factory dual fan setups dual speed also? I'm running 2008 Escalade Electric fans. One last question, where did you put the diodes in your schematic? Or did you just use Relays with the diodes built in, like the factory relays?
Shawn
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05-13-2013, 12:00 PM | #8 |
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Re: electric fan switch ?
thankyou very much...mark
i will re wire today.thankyou again ronald |
05-13-2013, 03:51 PM | #9 |
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Re: electric fan switch ?
just an fyi you might need to have the fans turned on in the tune
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05-13-2013, 07:57 PM | #10 | |
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Re: electric fan switch ?
Quote:
The relays have diode built in…
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