Harness compatibility help
Also my duster doesn’t have rear defrost.
if it doesn't have redefrost and there isn't a grommet with 12 ga or larger wires as shown in the photos above, then it was a standard harness.
So the alternator wiring that is on the duster right now, it goes straight to a connector along with the other 2 wires.
The 74 duster harness has a thick black wire which goes into its own connector ,
like how the picture looks, and the other 2 go to a connector with additional wires.
OK. I can't see any details in the photo. The Forum is set up for horizontal viewing. There will be less shrinkage with horizonatl photos. Still will be limited in pixels to 800 wide or something like that.
If I understand correctly:
1973 Harness on the car.
The alternator output wire, and the field wires, all go to an engine bay connector. That was done for several years. Reportedly to easy manufacturing. Connections there can be problematic. Especially if , as may be in this case, the wires are hanging free with no support. Worst if over the exhaust.
1974 harness.
Alternator output wire goes to a seperate connector.
When you note differences like that, that's when it time to refer to the diagrams in the shop manuals.
Side note: Fat wire, small wire, and so forth are the begining of the learning curve. Its also pretty hard to translate with any certainty. In this case, the alternator, its not an problem. But all these wires have names and functions which will be very helpful when comparing between the two harnesses.
The heavy black wire is alternator output. Chrysler always labled it R6 on the drawings. R for Ale
rnator.
The blue wire is a segment of the run circuit. It primarily supplies power to the ignition and the alternator's rotor.
The green wire connects to the voltage regulator and controls current allowed through the rotor.