The "lay-by" pins for these connections are located in the lower part of the ECU circuit board. Bosch ME7.1.1 Pinout and Connections | PDF - Scribd
: Community-maintained projects like typhoniks' Bosch-ECU-Pinout offer a central repository for various Bosch models, including the ME7.1.x series. bosch me711 pinout
The ECU usually has two main connectors. The pins are numbered on the plastic housing. Ground (GND): Pin 1 & Pin 2 Permanent Power (+12V): Pin 3 (Terminal 30) Ignition Power (+12V): Pin 62 (Terminal 15) K-Line (Communication): Boot Mode Pin (For Flashing) To put the ME7.1.1 into (required for EEPROM reading or full recovery): Locate the flash chip or the processor inside the ECU. of the flash chip through a resistor while powering on the ECU. The "lay-by" pins for these connections are located
| Pin | Function | Wire Color (Typical) | |------|-------------------------------|----------------------| | | Engine Coolant Temp (ECT) | Brown/Red (or Blue) | | 59 | Knock Sensor 1 (Cyl 1-2) | Shielded – White/Black | | 96 | Knock Sensor 2 (Cyl 3-4) | Shielded – White/Blue | | 75 | Primary Oxygen Sensor (Pre-cat) | Gray (signal) | | 76 | O2 Sensor Heater Control | Black (ground side switched) | | 100 | Secondary Oxygen Sensor (Post-cat) | Gray/Yellow | The pins are numbered on the plastic housing