Heater For 1979 GMC Light Duty Truck (Series 10-35) Wiring Diagram

The next schematic will be the heater wiring diagram for the 1979 GMC Light Duty truck (Series 10-35). This is a clear and readable wiring diagram, you can see clearly components names like: resistor, blower motor, blower switch, junction block, etc. Be sure you study them first before you try any work with your car’s wiring system. (Click image to enlarge)

 Heater Wiring Diagram For 1979 GMC Light Duty Truck (Series 10 35)