Use a stabilized 12V–13.8V power supply. Never use a cheap "wall wart" charger.
💡 Always verify your specific vehicle's make and model. While the Bosch M7.9.7 hardware architecture is consistent, some manufacturers (like VAZ or Chery) may swap auxiliary pins for features like A/C control or immobilizer lines. To help you get the exact data you need, could you tell me: What is the make and model of the car? Are you trying to flash the ECU or diagnose a wiring fault ? Do you have the 81-pin or the newer 121-pin version? bosch m797 pinout better
This guide provides a comprehensive breakdown of the Bosch M7.9.7 pinout to ensure your connections are safe and accurate. Bosch M7.9.7 Connector Layout Use a stabilized 12V–13