How to Check VXDIAG Benz/ MB SD C4 DOIP by Multimeter?

 

Here we are going to check VXDIAG Benz/ MB SD C4 DOIP protocol using a multimeter.


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

how-to-check-vxdiag-benz-mb-sd-c4-doip-via-multimeter-1

how-to-check-vxdiag-benz-mb-sd-c4-doip-via-multimeter-2


Test Method:

Turn on "enable Ethernet".

how-to-check-vxdiag-benz-mb-sd-c4-doip-via-multimeter-4

how-to-check-vxdiag-benz-mb-sd-c4-doip-via-multimeter-5

Then 6v should appear on multimeter.

how-to-check-vxdiag-benz-mb-sd-c4-doip-via-multimeter-6

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

Find a diode.

how-to-check-vxdiag-benz-mb-sd-c4-doip-via-multimeter-7

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

how-to-check-vxdiag-benz-mb-sd-c4-doip-via-multimeter-8

After changing components,

Click "DOIP ON", then multimeter should display 12v;

Turn DOIP OFF, then multimeter should display no value.

how-to-check-vxdiag-benz-mb-sd-c4-doip-via-multimeter-9

how-to-check-vxdiag-benz-mb-sd-c4-doip-via-multimeter-10

Go to Mercedes center folder.

Turn on "enable Ethernet", multimeter stays at 6.5v.

how-to-check-vxdiag-benz-mb-sd-c4-doip-via-multimeter-11

http://blog.cardiagtool.co.uk/how-to-check-vxdiag-benz-mb-sd-c4-doip-by-multimeter/

评论

此博客中的热门博文

VNCI PT3G vs. OEM PT3G vs. Custom VAS 6154A vs. Other PT3G

ECU Tuning Tool Comparison: KESS3, Flex, FoxFlash, CGDI...

Alitentech Kess3, FLEX, Autotuner: Which is Better?