OBDSTAR DC706 adds IMMO data decryption function for VAG VW Audi Skoda Continental SIMOS18.1 TC1791 ECU.
Function:
Read/Write INT eeprom
Read/Write INT flash (BOOT) (Only support MP001 PROGRAMMER).
IMMO data decryption (DC706 also decrypts IMMO data for Simos 18.1. OBDSTAR has a built-in calculator to calculate CS code for this ECU.)
We have already shown how to read Simos 18.1 with DC706 and MP001 in boot mode.
How to Read and Write VAG Simos 18.1 ECU with OBDSTAR DC706?
Read the instructions in red! If you are using obdstar power supply won’t work anyway.
“DO NOT use the power adapter they provide to power the ECU, that is only for charging the tablet.
For BENCH & BOOT (workbench) operation, please use a reliable high-power DC regulated power supply (current not less than 5A) to power the ECU. OBDSTAR’s standard power adapter (current 2A) is only used for device charging and is not recommended for ECU. power supply, otherwise communication may fail due to low power of the power adapter!”
DC706 decode Simos 18.1 cs code ok.
For example: Audi Simos 18.1 TC1797.
After read INT eeprom and INT flash in boot mode, select IMMO Data Decryption function.
Upload INT eeprom and INT flash data to decode 16 bytes CS code.
The CS code heps obtain sync data for all keys lost programming.
Autel, Launch X431 has builti-in MQB2 calculator that will calculate sync data based on CS code from cluster, ECU, TCU and ELV.
How to Calculate MQB Sync Data with Launch X431 Built-in Calculator?
How to Calculate VAG MQB AKL Sync Data with Autel IM508 IM608?
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