FVDI abrites commander for vag can read out the data of MED17, EDC17 engine control unit,can get 6-digit Security Byte and 5-digit login password by reading the data from MEDC17, and get 7-digit Security Byte by reading data from comfort modules.
What need to prepare for FVDI reading/writing MED17 EDC17?
PC, FVDI, USB cable, MEDC17 adapter, dongle, welding iron, solders, several 1K ohm resisters and 12V DC power supply.
(Note: refer to “medc17-pinout.pdf” that shows connections between MEDC17 adapter and MEDC17 ECU.)
Picture 1 shows connections between FVDI, PC, dongle, MEDC17 adapter. Your PC must be online.
How to read write MED17 EDC17 by FVDI?
Step 1: Disassemble MEDC17 ECU, uncover it.
Step 2: Connect MEDC17 ECU under instructions.
Step 3: Connect FVDI with PC, open VAG 18.0, and enter special functions, and select “EDC17/MED17 Engine Control Unit”. It’s shown as picture 2.
Step 4: Select correct MCU type, and click “CONNECT” as Picture 3.
Step 5: Read what you want to read.
Step 6: Assemble MEDC17 ECU and install it to vehicle.