66 Mustang Heater Blower Wiring Diagram. 1966 Ford Mustang 4695. Here is how the heater blower motor works on the 6566 Mustangs.
Simple no tool trouble shooting of Heater Blower Motor Resistor Block Switch. Also attach Wire Harness Assembly to the Blower Switch. Connect 16 to 16a if tach is.
When installing ground leads on Gen IV systems the blower control ground and ECU ground must be connected directly to the negative battery post.
The Mustang 3-speed heater blower motor requires an additional wire to hook to the black wire on the blower motor and then to the single spade on the resistor on the front of the heater box. Need diagram i need a wiring diagram for a 1965 ford mustang heater switch blower motor Posted by john earley on Nov 10 2008 Want Answer 0. Refer to Wiring Diagram Manual Form 7795P-66 for locations of wir-ing harnesses. Thanks Ted Curtice April 18 2013 1258 PM.