Posted by Phil Street [172.68.54.79] on Tuesday, April 03, 2018 at 10:21:43 :
I'm in the process of re-wiring my C3-PW and wondering why Dodge changed the horn wiring sometime between the B2-PW and B3-PW models (1950 to 1951)?
With the exception of the electric temperature sender, my C3-PW wiring is identical to the B3-PW wiring.
On the B2-PW the horn is wired from the regulator BAT terminal which in turn is wired from the ammeter + terminal.
On the B3-PW the horn is directly wired from the ammeter - terminal.
See attached screen shot of the two schematics.
Follow Ups: