How to Test VXDIAG C6/ SD C4 Protocol DOIP?

Both VXDIAG Benz and MB SD C4 Support DOIP protocol, but how to test if DOIP works well? Here we will show you.

 

Connection:

MB SD C4>>OBD connector>> GODIAG GT100>>Multimeter

MB SD C4>>Ethernet cable>>Ethernet adapter>>PC

SD C4 connect power supply to fourth minus and to eighth pin to IP power supply 12V of multimeter

 

Test Method:

Turn on “enable Ethernet”.

Then 6v should appear on multimeter.

If it still has no 6.5v on eighth leg, it means the old type of C4 PCB board.

Find a diode.

We need to put supplement 54 with a letter and solder diode.

After changing components,

Click “DOIP ON”, then multimeter should display 12v;

Turn DOIP OFF, then multimeter should display no value.

Go to Mercedes center folder.

Turn on “enable Ethernet”, multimeter stays at 6.5v.

Done!

Credit to MBCoding.

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