Hi all

Anyone run into one headlight dimmer than the other? Hi/low beam. Getting 10v on passenger side, 12 on driver side. Diagram shows combo switch.
Opinions?

 

High resistance in the right side headlight wiring. Check the connector for corrosion, partial break in the wiring, break in the insulation and corroded wiring or a poor ground as causing the issue.

 

Thanks, sure enough found a loose ground!

 

Glad you were able to find the issue quickly. Nice work!

 

You should do a rewire to bypass the combo switch for the power by using relays instead. This way direct power form the battery via the relays which are switched by the combo switch circuit.
Danial Stern has good write ups on the basics for doing this. Back in the day we were able to get a kit from BlackDragon for this but its not hard to do.

https://www.danielsternlighting.com/...ys/relays.html

 

It's always the ground it seems. That was a quick fix.