2003 c320 4matic
 

I am having a problem with my passenger door the courtesy light under the door doesn't turn on even when you open door or turn the door lights to stay on and dome light doesn't turn on when you open door either all other doors work perfect checked the bulb and replaced with new bulb same problem does anyone know what it can be makes no sense even if the door sensor was messed up it would still turn on when you turn the lights to on right? Can someone please help me

Try getting the codes ran, if there is an electrical issue or fuse related; this will give you a good place to start troubleshooting.


-Dmitry

All bulbs and fuses are good

Even if the fuses and bulbs are good, the DTC could have stored codes.