Ford 2003 Mustang Workshop Manual page 3234

Part
Item Number
1 18A318 Vacuum control motor (panel/defrost door)
2 19988 Temperature blend door actuator cable
3 18A318 Vacuum control motor (air inlet door)
4 A/C vacuum reservoir tank and bracket (part of
18454)
5 18A318 Vacuum control motor (floor/panel door)
Control System Inputs
Climate Control Assembly
The climate control assembly has three system controls:
The blower motor switch controls blower motor speed by adding or bypassing resistors in the
heater blower motor resistor.
The temperature selection is accomplished with a manually-controlled blend door actuator that
controls positioning of the temperature blend door. Movement of the control knob (18519) from
Description