1990 olds 88 / fan not coming on all the time

I have a 1990 olds 88.

I have the auto climate control. My fan comes on sometimes and not others. The fan is OK. I believe that the climate module might be bad.

Could I just install a fan switch in the dash to control the fan myself.


What would you recommend for the switch. I would like to have a three position switch.

Thanks

What kind of 3 position switch, On Off and Reverse or what? You can easily install a switch in the front of the dash, or maybe the door, or anywhere for that matter, its not so hard. let me know what you want to do exactly