🔌 Note: If you are building a bench harness to flash the ECU, you only need pins 62 (switched 12V), T2/T3 (constant 12V), T1 (ground), and 104 (K-line).
Understanding the Bosch ME711 pinout is essential for working with engine control systems. This write-up provides a comprehensive guide to the ME711 pinout, its features, and applications. With this information, enthusiasts, mechanics, and developers can effectively diagnose and repair issues related to the ECU.
Primarily handles chassis-side connections, including main power, ignition switches, fuel pump relays, and communication lines (OBD2/CAN-Bus).
Multiple heavy-gauge pins, often pins 1, 2, or corresponding grounding pins in the main harness. bosch me711 pinout
These pins handle the heavy lifting, driving the physical components of the engine.
[ 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
I'll search for "ME7.1.1 pinout 81 pin". also found a result from "audisport-iberica.com" that might have a pinout. I'll open that.'ll scroll further. post likely contains an image of the pinout. I'll search the page for "pinout". might be an image. 🔌 Note: If you are building a bench
Note: The above are general representations; always consult the specific wiring diagram for your vehicle's ECU part number as pinning can vary slightly between Audi V8, VR6, and other applications. 4. Connecting and Flashing the ME7.1.1 (BDM/Boot Mode)
Confirm both are grounded to the same power supply negative terminal.
Entry into boot mode typically requires grounding a specific point on the ECU motherboard—often a "lay-by" pin or a specific pad on the ST10 processor—while powering the unit on. These pins handle the heavy lifting, driving the
| Pin | Function | Connected To | |------|-----------------------------|-----------------------------| | | Pedal Position Sensor 1 Signal | Accelerator pedal (G79) | | 66 | Pedal Position Sensor 2 Signal | Accelerator pedal (G185) | | 67 | Pedal Sensor 5V Supply | Pedal potentiometers | | 68 | Pedal Sensor Ground | Pedal return | | 73 | Throttle Motor Control (+) (Drive) | Throttle body (V60) | | 72 | Throttle Motor Control (-) (Return) | Throttle body (V60) | | 80 | Throttle Position Sensor (for motor feedback) | Internal throttle plate sensor |
| Pin | Function | Wire Color (Typical VAG) | Notes | |------|-----------------------|--------------------------|------------------------------------------| | | Switched B+ (Terminal 15) | Black/Violet | Ignition-on power (from relay) | | T2 | Permanent B+ (Terminal 30) | Red/Black | Direct to battery (fused) | | T3 | Permanent B+ | Red/Black | Second main power feed | | T1 | ECU Main Ground | Brown | Chassis ground (near battery tray) | | T3 | ECU Ground (Sensor return) | Brown/Yellow | Analog sensor ground | | 50 | Power Supply Ground | Brown | Internal logic ground |