1989 240sx coupe passenger side tail lights wont work...

[_SlowS13_]

I have noticed that when i have my running lights on including my headlights, both tail lights are lit up but when i push on my brake the passenger side tail light completely goes out..

[NCturbo75]

I have noticed that when i have my running lights on including my headlights, both tail lights are lit up but when i push on my brake the passenger side tail light completely goes out..

The bulb filament is burned out. #1157 (which is what you need) bulbs have two filament.....one for "brake" and one for "parking lights". Just replace the bulb and you'll be back in business!!