Below are example pin assignments from representative M7 installations. Treat these as templates — confirm exact pin numbering/colors per part number and vehicle wiring diagram.
Row A (Top) A1 A2 A3 ... A27 Row B (Middle) B1 B2 B3 ... B27 Row C (Bottom) C1 C2 C3 ... C27 Bosch M7 Ecu Pinout