For basic bench connection (standard reading or diagnostics), use the following pins typically found on the (Front view): Power Supply (+12V): Pin H2 Ignition (+12V): Pin F4 Ground (GND): Pin H4 K-Line (Data): Pin B4 Boot Mode Instructions
The ME7.4.5 ECU is a Bosch engine control unit used in various Volkswagen and Audi vehicles, including Golf, Jetta, Passat, and A4 models. It's a highly sophisticated computer that controls engine functions, such as fuel injection, ignition timing, and emissions. me7.4.5 pinout