charging issue

[shawneen13]

alternator checks out ok, so looking for ballast resistor check and auto switch check and adjustment.
So looking for wiring diagram and electrical test for 66 Plymouth Belvedere. So does anyone have wiring diagram or know where to get one

 

[Bolt-Action]

67 but SHOULD be similar (?)

 

[70redbee]

Try searching on mymopar.com, they have a lot of elec. diagrams for free. Hopefully yours will there.