Just wanna know how the fan (inside the room commonly called blower) is wired. In my 2011 Cultus, the switch is connected to +12V, which means that the speed control resistors will connect to +12V, and the fan is permanently wired to the ground. Shouldn't this be reversed? Like the fan should have been connected to the +12V via a relay driven by switch and the resistors should be in series with the speed selector that's grounded.
Everything is apparently working fine. Someone used a relay for max speed that I removed and shorted the two wires still everything is working as it was before, not sure why the relay was there in the first place.