W163 12s Trailer Curcuit

Discussion in 'Electronics' started by ldare, Apr 28, 2017.

  1. ldare

    ldare Hardcore MB Enthusiast

    Messages:
    171
    Joined:
    Jul 20, 2014
    Location:
    Wales
    Car:
    2007 R320 CDI Sport / 2003 270ML CDI Inspiration
    Hi

    Fuse 18 (I think) is marked as 25a fuse Trailer in the fuse box. Currently the other end (ISO connection in bumper vent) has nothing connected with just a standard 12n connection.

    Did Mercedes give any specification on this circuit which they deliberately included for 12v trailer use? Im guessing it's suitable for upto 25 amp hence the fuse rating?

    Ta
    Louis
     

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