Pinout - Me7.4.5

To power up the ECU and establish a diagnostic link, connect your interface to the following specific pins: Power and Ground Connections Black Connector -> Pin H2 Switched +12V (Ignition Power): Black Connector -> Pin A4

Some guides, such as those from Piasini Engineering , specify adding two 6k8 ohm resistors and removing one existing resistor to enable boot mode. me7.4.5 pinout

If you want, I can:

I can provide the precise connection diagram and software configuration tailored to your tool. Share public link To power up the ECU and establish a

| Pin No. | Function | Description / Signal | | :--- | :--- | :--- | | | Battery Constant (+12V) | Permanent Battery Voltage (Unswitched) | | B02 | Ground (ECU) | Main ECU Ground (Connect to Chassis/Block) | | B03 | Ground (ECU) | Main ECU Ground | | B07 | Injectors Common | Common 12V supply feed for Injectors | | B08 | Injector Cylinder 1 | Ground trigger for Injector 1 | | B09 | Injector Cylinder 2 | Ground trigger for Injector 2 | | B10 | Injector Cylinder 3 | Ground trigger for Injector 3 | | B11 | Injector Cylinder 4 | Ground trigger for Injector 4 | | B16 | Tacho Output | RPM signal to dashboard cluster | | B21 | A/C Request | Air Conditioning request signal | | B22 | A/C Compressor Relay | Relay control for A/C Compressor | | B25 | Fuel Pump Relay | Relay control for Fuel Pump | | B28 | Fan Control Low | Cooling fan low speed relay | | B29 | Fan Control High | Cooling fan high speed relay | | B34 | Main Relay Control | Ground trigger for the Main Power Relay | | B39 | Charcoal Canister Valve | EVAP purge valve control | | Function | Description / Signal | |