Here’s the instruction on how to perform a BMW N20 DME ISN reading with the Autel MaxiIM IM608 and G-Box2.
Connect N20 DME unit with G-Box2, J2534 VCI and IM608 follow the wiring diagram
- Remove the engine ECU module from the vehicle
- Connect the Engine ECU interface to the DB15 harness according to the ECU interface punctuation in the wiring diagram.
- Connect the DB15 harness to the G-Box, then connect the P terminal of the G-Box to the IM608. Connect the 12 DC terminal of the G-box to the 12V adapter.
Select IMMO function->BMW->System selection->Engine->Direct->Quick Entrance
IM608 requires input the 10 digits Bosch number. Press “Help” to check the 10-digit number.
Enter the Bosch number and press OK to continue
The Bosch number can be found on the DME unit.
IM608 identify ECU type: MEVD17.2.9
Press “Bench” button to go to the ECU type and chip type selection menu.
Make sure the well connection is built
Select “Read ISN”
Current function need internet connection. Make sure network is working properly and keep this state during the whole process.
Do not use Bluetooth connection.
Do not disconnect the power supply 12V 3A to ensure stable operating voltage.
Do not disconnect the IM608.
Read ISN in progress
Data reading finished. Save data.
Autel IM608 read N20 ISN code from DME success.
After completing the function. Restore the engine ECU module to its original state.