How to use VVDI Prog to Read BMW Engine ECU ISN?

VVDI Prog programmer, you can get free BMW ISN read function and NEC, MPC, Infineon etc chip continously update service.And here we will display the BMW Engine ECU ISN function details.

If the BMW ECU ISN can support,after you connect successfully,the software will display the ISN code automatically.

How to use VVDI Prog to Read BMW Engine ECU ISN?

1:Start VVDI Prog software.


2.Select type: 3-ECU Brand: BMW_F_ENGINE Device: MEVD172(N20)

3.Click Connection Diagram to check detailed wiring diagram.It shows NO.2 connector.



4.Please process the wiring according to the connection diagram.


Attention: the left corner is NO.33 pin, and the right corner has pin, follow its pin number and order to connect the cable.


Wiring Detailed Steps:

Start to connect the cable to VVDI PROG.

Connect power cable, the red is power cable.It will be 2 power cables, one is No.1 pin, one is NO.22 pin.

vvdi-prog-bmw-isn-6 vvdi-prog-bmw-isn-5

Then,connect GND cable, it is NO.10 pin.


Connect CANH cable and CANL cable, CANH is blue color, CANL is yellow color.



Connect Boot Line:Open a hole on Engine ECU and find out the pin position by following the wiring diagram, then use Boot line to point at this pin and to read data.


All the connection finished,please check whether all the cables are connected well to VVDI Programmer.

VVDI Prog needs to connect an external power adapter, because it reads Engine ECU.

5.Read BMW ECU Data.

Please click “New Create”,then “read”.And save the data after it reads out successfully.

If BMW CAS4+ all key lost, firstly read CAS data then Engine ECU data, when get message it needs ISN code, load Engine ECU EP data, then you can generate dealer key.