SMART Board 4000 | E70

    Bosch M7 Ecu Pinout ((link)) May 2026

    | Pin No. | Function | Description | | :--- | :--- | :--- | | | Upstream O2 Sensor Signal | Pre-cat Lambda sensor | | B2 | Upstream O2 Sensor Earth | Ground for Lambda heater/signal | | B3 | Downstream O2 Sensor | Post-cat monitoring | | B4 | Throttle Potentiometer 1 | Pedal position (Track 1) | | B5 | Throttle Potentiometer 2 | Pedal position (Track 2 - Safety) | | B6 | MAP Sensor Signal | Manifold Absolute Pressure | | B7 | Intake Air Temp (IAT) | Air temperature thermistor | | B8 | Coolant Temp Sensor | Coolant thermistor | | B9 | Knock Sensor Signal | Piezoelectric signal shield | | B10 | Knock Sensor Ground | Ground shield | | B11 | Speed Sensor (Crank) + | Engine speed (Inductive) Positive | | B12 | Speed Sensor (Crank) - | Engine speed (Inductive) Negative | | B13 | +5V Supply | Sensor reference voltage (MAP/TPS) | | B14 | Sensor Ground | Common ground return | | B15 | CAN High | CAN-Bus Communication Line | | B16 | CAN Low | CAN-Bus Communication Line | | B17 | +12V Battery (Permanent) | Keep-alive memory power | | B18 | Power Ground | ECU Main Ground | | B19 | Power Ground | ECU Main Ground | | B20 | AC Pressure Switch | A/C refrigerant pressure input | | B21 | Twincan / Second CAN | Secondary network (if equipped) | | B22 | Air Conditioning Request | Input from AC control panel | | B23 | Multi-function Inputs | Auto gearbox signal etc. | | B24 | Diagnostic / Flash | Flash tool trigger (Ground pin) |

    For the 81-pin M7.9.7 variant, the following pins are critical for basic operation: Pin Number(s) 12, 13, 44, 63 Ignition Signal 1, 2, 4, 5 (for various cylinders) Ground (GND) 3, 51, 53, 61, 80 Main Relay Control Fuel Pump Relay K-Line (Diagnostics) Crankshaft Sensor 15 (Input A) Throttle Position (TPS) 32 (+5V Output), 16 (Signal) Coolant Temp Sensor Bench Connection and Programming Bosch M7 Ecu Pinout

    : For ECU remapping, "boot mode" is often required. This frequently involves connecting specific grey (BOOT) and blue (CNF1) wires to internal lay-by pins located in the lower part of the unit. Safe Handling Practices When working with these pinouts: Bosch m7.8.0 Piaggio | PDF - Scribd | Pin No

    Power & ground