I guess I need some help figuring out what’s going on with my heater. Flipping the heat selector, I can hear an audible click from the fuse area but nothing happens at any fan speed. Blower doesn’t kick at all which is why I though it may be the blower motor. Pulled the motor and direct wired to a 12v supply it runs fine. Could it be the resistor? I’m a novice at wiring diagrams and struggle to wrap my brain around them.