How to read and modify ISN from EDC17C50 BMW MINI Cooper engine ECU?
It can be done with Xhorse VVDI2 key programmer and original Kess V3 on bench.
First operation:
Read BMW ISN with VVDI2
VVDI2 and BMW MINI EDC17C50 ECU diagram:
Need to connect CAN-L, CAN-H, VCC, and GND cables
Connect VVDI2 key programmer to computer via USB cable
Open VVDI2 software, and click BMW
Select Key Learn>> ECU/CAS ISN>> E-Series ISN- EDC17xx (16 Bytes)
Read ECU information and ECU ISN successfully
You also can read VIN, change ISN and VIN there, and save the file to write into a new BMW engine if you want.
Second operation:
Backup BMW EEPROM data with Alientech KESS V3, and load file with Xhorse VVDI2 to read ISN
KESS3 BMW MINI EDC17C50 ECU PINOUT Diagram:
| PIN | Color | Description |
| PIN 1, 18 | Red | VECU |
| PIN 2 | Black | GND |
| PIN 56 | White | CAN-H |
| PIN 55 | Green | CAN-L |
| PIN 92 | Light Blue | GPT1 |
| PIN 89 | Pink | GPT2 |
Plug in the bench power supply 1400K3ALIM to the KESS3
Connect the cable 144300KBNC to the ECU connector, using the appropriate extension 144300KTER according to the above diagram
Connect KESS3 ECU Programmer to computer via USB cable
After connection, run ALIENTECHsuite software
Input edc17c50 in the searching box to quickly obtain the corresponding ECU model
Click “Continue” to next step
Select bench mode to read and save the EEPROM data
Go to VVDI2 ECU/CAS ISN interface and select E-Series ISN- EDC17xx (16 Bytes)
Click “Load From File” to upload the original EEPROM data just saved with ALIENTECH Kess3
Read BMW ISN successfully
After that, you can change ISN according to your needs.
Done!
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