Be extremely careful when probing pins; a slip can fry the processor. M7.9.7 vs M7.9.7+:
Requires pin 24 (or specific internal points) to be grounded via a resistor (often 6.8kΩ) to enter bootstrap mode for flashing. Sensor and Actuator Pins bosch m797 pinout better
Pin 16 (Signal) and Pin 32 (+5V supply). Understanding the Bosch M797 Pinout: A Comprehensive Guide
Always verify pinouts against the specific wiring diagram for your vehicle model year. Manufacturers may alter wiring between production runs. Use a high-impedance multimeter (10MΩ minimum) to prevent damage to the ECU. bosch m797 pinout better