Ranger 2WD V6-245 4.0L VIN X SFI (1997)
With the heater blower motor switch at MEDIUM HIGH, current flow in the ground circuit is through one heater blower motor switch resistor coil
to obtain a medium high operating speed.
With the heater blower motor switch at HIGH, current flow in the ground circuit bypasses the heater blower motor switch resistor to obtain the
maximum operating speed.
