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Old 04-18-2012, 05:19 PM
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Quote:
Originally Posted by compu_85 View Post

In your case you might just want to jumper the two wires going to the high pressure switch and have your fan run whenever the key is on. When it cools down in the fall you can simply return the wiring to stock.

-J
x2 This is the easier way to do it.

Since you have got the relay/fan going then why not go all the way and do it properly.

1) The blue wire is best go to a switched +12V at the compressor. You only want to turn the fan on when AC is called for. It may be difficult to splice into the compressor harness but it is not that difficult if you try.

2) Alternately, the relay only draws 10s of milli-amp. So it is possible to tap it off Pin 7 of the Kilma relay instead. Remove the kilma relay, insert a small gauge stranded wire into the Pin 7 hole and then push the Kilma back in. Then connect the small wire to the blue wire. You should be all set.
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Not MBZ nor A/C trained professional but a die-hard DIY and green engineer. Use the info at your own peril. Picked up 2 Infractions because of disagreements. NOW reversed.

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