GREAT WALL DCM3.7AP 3612100-ED01A, MT20U2 IMMOBILIZER EMULATOR
![](https://www.ecuserwis.pl/wp-content/uploads/2024/03/RL78_EMU_WEB2.jpg-1024x768.jpg)
Immobiliser emulator for GREAT WALL GWM vehicles. Currently tested ECUs with which this emulator works include: DCM3.7AP, MT20U2.
To use this emulator, we read the synchronization bytes from the EEPROM area of this ECU and store them in the EEPROM mounted on the emulator PCB – 24C02.
We do not need to modify the flash file or the eeprom file in the ECU, so it remains in its original state.
![](https://www.ecuserwis.pl/wp-content/uploads/2024/03/GWM_IMMO.jpg-768x1024.jpeg)
Thanks to the immobiliser emulator, we can eliminate the following components of the immobiliser system:
- Defective immobilizer module
- Defective or lost transponder key
- Faulty electrical wiring of the power supply and K-BUS bus, the wiring harness to the immobiliser module, when the emulator is fitted inside the ECU.
![](https://www.ecuserwis.pl/wp-content/uploads/2024/04/CONNECTOR_MT20U2.jpg)
MT20U2 DELPHI ECU Based on the 9S12 MCU, reading the eeprom area is needed to obtain the synchronisation bytes to adapt our emulator.
![](https://www.ecuserwis.pl/wp-content/uploads/2024/03/DCM37_GWM.jpg-scaled.jpeg)
DCM3.7AP DELPHI ECU Based on the R5F72513R MCU, reading the eeprom area is needed to obtain the synchronisation bytes to adapt our emulator.
If you are an EU-based automotive electronics company, you can send us an engine control unit for assembling and testing the emulator for service – please contact us or to one of My distributors .
In order to use this solution, the customer must be qualified as an automotive electronics technician and have the necessary diagnostic tools and wiring diagrams.