Bosch M7 Ecu Pinout <FREE>
| Pin No. | Function | Description | | :--- | :--- | :--- | | | Injector Cylinder 1 | Earth triggered driver | | A2 | Injector Cylinder 2 | Earth triggered driver | | A3 | Injector Cylinder 3 | Earth triggered driver | | A4 | Injector Cylinder 4 | Earth triggered driver | | A5 | Tacho Output | Signal to Instrument Cluster | | A6 | MIL (Engine Light) | Earth triggered dashboard lamp | | A7 | AC Relay / Fan Control | Output relay control | | A8 | Ignition Coil 1&4 | Trigger signal (Logic level) | | A9 | Ignition Coil 2&3 | Trigger signal (Logic level) | | A10 | Rev Counter / Speed | Vehicle speed signal input | | A11 | Immobilizer Code | Data line from BSI/Immo box | | A12 | Stop Light Switch | Brake pedal status | | A13 | Clutch Switch | Clutch pedal status (if manual) | | A14 | Cruise Control | Input/Output (varies by model) | | A15 | Fuel Pump Relay | Output control | | A16 | Fan Control (Low/High) | PWM or Relay control | | A17 | Purge Valve (CANISTER) | Charcoal canister solenoid | | A18 | AC Compressor Clutch | Request/Output status | | A19 | Alternator Excitation | Charge control signal | | A20 | Diagnostic (K-Line) | ISO 9141 communication | | A21 | Camshaft Sensor (Signal) | Cylinder identification (Hall Effect) | | A22 | Sensor Earth | Ground reference for sensors | | A23 | +12V Battery (Switched) | Ignition power feed | | A24 | Power Ground | ECU Main Ground (To chassis/battery) |
| Pin(s) | Function | Spec / Notes | |--------|-------------------------------|----------------------------------| | 37 | Battery voltage (permanent) | 12V, 10A fuse (ECU main) | | 3, 62 | Main relay output control | Switched 12V after relay | | 1, 2 | ECU ground (power) | Heavy gauge to engine block | | 4, 5 | Sensor ground (analog) | Common return for sensors | | 61 | Ignition switch input (Term.15)| 12V when key ON | Bosch M7 Ecu Pinout
| Manufacturer | Model / Engine | Pinout Difference | |-------------------|---------------------------|------------------------------------------------------------------------------------| | | 1.4L TU3JP (M7.4.4) | No VVT (C3 missing). EVAP on C2. | | Renault | K4M 1.6L (M7.9.7) | Cam sensor (B6) is magnetic, not Hall. A/C compressor on C6 is inverted logic. | | Nissan | QG15/QG18 (M7.9.8) | Additional pins for NATS immobilizer (C15, C16). Different crank trigger pattern. | | Fiat | 1.2L FIRE (M7.2) | Only 48 pins total. No connector C. Injectors on A1-A4, coils on A5-A6. | | Pin No
