Bosch Me711 | Pinout

| Pin # | Signal Name | Signal Description | | --- | --- | --- | | 1 | ECT | Engine coolant temperature | | 2 | IAT | Intake air temperature | | ... | ... | ... |

The Bosch Motronic ME7.1.1, colloquially referred to as "ME711," represents a pivotal moment in automotive electronics. Released during the transition from mechanical cable throttles to electronic drive-by-wire systems, the ME711 is a 121-pin engine control unit (ECU). Understanding its pinout is not merely an exercise in reading a wiring diagram; it is an act of reverse-engineering the logic behind one of the most tunable and robust forced-induction systems of the early 2000s. The pinout defines how the ECU perceives the world via sensors and how it commands action via actuators.

For aftermarket tuners, the ME711 pinout contains two legendary locations: bosch me711 pinout

To bench-flash this ECU with tools like Galletto, Kess, or Neubauer, build a minimal harness:

⚡ Bench power: Use a 10A+ 12V bench supply. The ME7.1.1 draws ~1.5A idle but 5-7A when driving injectors/coils during a flash. | Pin # | Signal Name | Signal

A common mistake in diagnosing the ME711 is assuming one ground fits all. The pinout distinguishes between:

| Pin | Actuator | Signal | |------|------------------------|----------------| | 4 | Injector Cyl 4 | Switched Ground | | 6 | Injector Cyl 3 | Switched Ground | | 17 | Injector Cyl 1 | Switched Ground | | 18 | Injector Cyl 2 | Switched Ground | | 22 | Fuel Pump Relay | Switched Ground | | 26 | Ignition Coil 1 (Output) | Logic/TTL | | 27 | Ignition Coil 2 (Output) | Logic/TTL | | 31 | N75 (Boost Control) | PWM (Ground side) | | 36 | Idle Air Control (N71) | PWM | | 53 | Ignition Coil 3 (Output) | Logic/TTL | | 56 | Ignition Coil 4 (Output) | Logic/TTL | | 64 | EVAP Purge Valve | Switched Ground | | 65 | VVT Solenoid (if equipped) | PWM | ⚡ Bench power: Use a 10A+ 12V bench supply

To run an ME7.11 on the bench: