hi have a 2013 r 350 diesel, no power at obd port, any ideas where the power, and other connections originate from? vehicle runs fine, but need to diagnose wipers and parking sensor issues but can't communicate with anything - also have a friends c350 2011 with no start and no communication from the obd port? Cannot locate the diagrams for these later models. would love to hear from someone regarding this problem. thanks in advance

 

Hello and welcome to the forum! Take a look at the link below to an earlier thread where this is discussed. Hope this helps you a bit and best of luck!

OBDII No Power