99 sl2 headlight dim

Hey guys, I have a 99 sl2 and the passenger highs and lows are very dim. They do come on but are dim as hell. The driver's side both work fine. I had the battery and the alternator checked and they both came out fine. I even tried to replace the bulbs but that didn't work either. Any suggestions?

Sounds like a loose connecting in the wiring. See if you can follow the wires jiggle them and check for any cuts, bends, or breaks in the rubber surounding the wires.