: The Bosch M7.9.7 is a standard module for many European Lada models, featuring an 81-pin configuration.
Below is a concise example mapping for a representative M7 ECU (Connector A: 60 pins; Connector B: 60 pins). This is illustrative; do not use as a sole source for wiring decisions. Bosch M7 Ecu Pinout
For a specific vehicle, obtain the OEM wiring diagram – this document serves only as a generic guide. : The Bosch M7
The engine will not run without the signal. However, if the Cam Sensor (A21) fails, the engine will typically still run but may take longer to start (extended cranking) as the ECU defaults to a batch injection mode rather than sequential. For a specific vehicle, obtain the OEM wiring
| 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 |