seeking wiring diagram

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younghoss

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For 73 Duster with AC. Need heater wiring diagram, can only get it to blow on low...
Ideas?
 
j_anderson said:
You can find your service manual over on mymopar.com. They contain the wiring diagrams
Click to expand...
THIS they are free and you don't have to jump through hoops. Not only that but that manual, and a few others, GOT over there because a few of the guys right here.

I don't remember for certain, but there might be also some info about the heater AC wiring in the body manual

Certainly read through the AC/ heat chapter of the chassis manual in addition to the electrical / wiring section of the manual

ALSO WHILE YOU are at MyMopar, go to the wiring section, and download the aftermarket wiring diagrams. These are NOT as detailed, and leave out some options, but they can be much easier to follow. I often use them in addition to the factory manuals.
 
Last edited:
Check the switch, and check the resistor thingy in the heater box. The switch is most likely. My AC equipped 74 Duster had a bad switch. Same symptoms as you.

Cley
 
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