The Heater/AC fan on my 02 S-type 3.0 will not shut off. It seems to work
fine as long as the Heater or AC is on (High to low) but when I turn it off,
it sounds as if the fan goes to high with the vents close. It does go off
when the ignition is switched off. My first guess was a bad relay. My owners
manual show the fuses but ignores the relays.
Can someone help me out.