I think I'd like to wire the Aux fan to come on with the AC. Is there a simple, safe way to do this?

 

Here's what the PO of mine did.

 

On some cars I think that the fan is already wired in parallel with the AC compressor clutch.

What symptoms are you seeing that make you wish to do this and are you sure that it isn't already this way but you have some other issue ?

 

It might depend on the year. I believe the Series III V12 sedans did this from the factory.

 

Check out my build thread.

Recently we are talking about e fans and Greg posted his wiring diagram.

 

https://www.jaguarforums.com/forum/x...fan-mod-97626/

That’s what I did

 

Thanks, this is very helpful.

 

To those who have questioned why I want to modify the circuit: I want to enhance the performance of the AC when in slow traffic or stopped. The thermoswitch works, but often the fan does not come on in slow traffic or stopped. The additional air circulation through the AC coil will help this situation.

 

Finally got it wired today, and it works exactly as I wished. Thanks to all those who helped.

 

So which way did you do it?