If you cannot establish communication with the ME7.1.1 on the bench, run through this quick checklist:
Pin must see battery voltage with the key in "Run" and "Start". This wakes the ECU. If pin 80 is dead, the ECU will not communicate via OBD.
Connect to Pin 3 (Permanent) and Pin 62 . For ignition simulation, use Pin 21 . Ground (GND): Use Pins 1 and 2 . Communication: K-Line: Pin 43 (Common for Galletto/KWP2000). CAN-Bus: Pin 58 (High) and Pin 60 (Low).
I will cite sources such as the Mechanics Stack Exchange pinout information (sources 9, 10), the nefariousmotorsports forum discussions (sources 8, 31, 32, 33), the audisport-iberica forum (source 28), and the fullflash.ru website (source 17). I'll also reference the chiptuners.es forum (source 18) for boot mode instructions. bosch me711 pinout
What (e.g., Audi 2.7T, Porsche 996) are you working on?
If you are swapping an engine and using a wiring diagram labeled "2001 Audi A4 1.8T" – that is ME7.1.1. Use the pinout above.
Before opening or attempting to write to a Bosch ME7.1.1 unit, identify the internal processing architecture. Bosch manufactured this specific model using two distinct microcontrollers, altering the necessary flashing methods: Bosch ME7.1.1 Pinout and Connections | PDF - Scribd If you cannot establish communication with the ME7
If your ECU is "bricked" or locked, you must enter by grounding a specific point on the circuit board before powering it on. Bosch ME7.1.1 Pinout and Connections | PDF - Scribd
[ 01 ]==================[ 20 ] [ 21 ]==================[ 40 ] Main Ground (GND) Pin 2: Main Ground (GND) Pin 3: Constant Power +12V (Terminal 30) Pin 4: Fuel Pump Relay Control (Ground Trigger) Pin 15: K-Line Diagnostic Communication Pin 21: CAN-High (Powertrain Communication) Pin 22: CAN-Low (Powertrain Communication) Pin 37: Cruise Control Switch (On/Off) Pin 40: Clutch Pedal Switch input Connector B (81-Pin) - Engine & Sensors
The connector is usually divided into three sections. Below is the industry-standard pinout for the Audi/VW 1.8T configuration, which is the most common reference for this ECU. Connect to Pin 3 (Permanent) and Pin 62
Finding a complete, accurate pinout for the ECU—commonly found in VAG (Volkswagen Audi Group) and some Porsche vehicles—is essential for bench flashing, boot mode operations, or diagnostics. Bosch ME7.1.1 Bench Pinout (Standard VAG)
A compatible OBD2 interface cable (e.g., FTDI-based KKL cable for NefMoto, or proprietary hardware interfaces). Wiring Connection Map (ECU to OBD2 Port)
Are you attempting a standard bench flash or a full immo-off procedure that requires boot mode? Locked up an Me7.1.1 ECU with wrong or bad flash - NefMoto