Two months ago, I got an old 1998 LR1 and just fell in love.

One annoying thing though, is that AC fan speed switch.
The old one was broken, so I bought a used one (and had to reposition it instead of the clock after painfully taking out the console) and now it also has connectivity issues (playing with the **** on max speed, for instance is causing incosistent operation of the fan)

I tried to clean it up with carb spray but no luck, so I have decided to retrofit some generic switch and build it with my generic car connectors kit I have so I won't need to cut wires.

Can someone please explain me how the original fan speed switch works? like 0, 1, 2, 3 speeds - I remember that the connector had several wires in it, is it one ground and the rest are different plus voltages?
my assumption is that each level has a different positive voltage till it reach max (12v)
Is that correct?

If it does, would you think using voltage regulator **** with ground and 12V postive (like this: https://www.aliexpress.com/item/3284...95604793%22%7D) can work for me?

 

There is a bank of resistors down by the motor to give you the different voltages, but the motor draws a LOT of amperage,(I believe it has a 50 amp fuse on it) when I ran jumper wires to bypass the switch (until the replacement arrived) I had to use 2 wires to get top speed and they got hot when it was running.