cheechahumma
TJ Enthusiast
Ok the passenger side bulb connector gets its power from the driver's side connector, odds are very good it's just a dirty or corroded driver's side headlight connector. Unplug the driver's side connector for the headlight and reseat it a couple times which should clean up the connection.
Take a look at the wiring at the plug too and make sure it's not corroding and breaking wire strands where they are crimped at the connect.
Awesome, thanks Jerry!