Bosch Me711 — Pinout

: Wire to Pin 43 (essential for standard K-Line protocols and EEPROM read tools).

For a basic connection to diagnostic or flashing tools, use these pins: Pins 21 and 62 +12V Switched (Ignition): Pin 3 Ground (GND): Pins 1 and 2 K-Line: Pin 43 CAN High: Pin 60 CAN Low: Pin 58

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Pinouts can vary slightly by vehicle chassis and model year. Always verify with a multimeter and a factory wiring diagram for your specific VIN. This guide is based on the standard VAG implementation of the Bosch ME711.1 and ME711.2 variants. : Wire to Pin 43 (essential for standard

After a battery disconnect, the ME711 enters a "limp" mode. You must perform a throttle body alignment (TBA) using VCDS (VAG-COM). Verify the 5V reference on and the ground on pin 41 . If these are faulty, the EPC light will illuminate immediately.

If you are replacing the ME711 with a standalone: Always verify with a multimeter and a factory

The ME711 requires constant voltage on (Terminal 30). Without these, the ECU is dead. Ground integrity on pins 43, 44, 45, and 121 is critical. A common failure is a corroded engine-to-chassis ground strap, causing erratic sensor readings (especially TPS and MAP).

Note: Always verify your specific ECU part number, as pinouts can vary between engines. Essential Power and Ground Connections