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wiring for manual high speed fan switch 996

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POST 1 / ORIGINAL POSTEROriginal post

Hi, I am doing this for a relative. He wants this. No need for input on whether to do this. Thanks in advance for your help. 996 non-turbo. Which relays do I wire to to manually control the high speed on the two radiator fans, please? I assume 12V to coils? What is the configuration of the relays: One relay for each speed controlling for both fans = 2 total relays? Any need to isolate the ECU signal to the relays when the manual switch is on? (I am worried about current back flow into the ECU if there is a slight voltage difference.) Also, when you manually deploy the spoiler, it lowers again at the next red light = Whackamo.... Is there an easy way to make it stay up once you hit the switch? Best regards

POST 2Original post

http://986forum.com/forums/diy-proje...em-switch.html 996 is the same from the doors forward, so relays, etc., should be the same.

POST 3 / ORIGINAL POSTEROriginal post

Wow. That is great!! Thanks, Bo

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