Many users seek the pinout for "Immo Off" solutions, which often involve using an emulator (like the Julie emulator ) to bypass transponder signal issues.
Whether you are performing a , diagnosing complex electrical faults, or swapping an engine, understanding the ME7.4.5 pinout is essential. This article provides a comprehensive overview of the pin connections for this specific ECU. 1. Overview of Bosch ME7.4.5 Structure me7.4.5 pinout
While specific pin assignments can vary slightly by vehicle model (e.g., Citroën C4 vs. Peugeot 207), a general bench-testing pinout often includes: Common Pin(s) POL4, POL5 Ground ECU Case or specific Ground pins Ignition (+15) Specific to vehicle harness K-Line (Diagnostics) Used for OBD/Bench communication ✨ Advanced System Features Many users seek the pinout for "Immo Off"
| Pin | Signal | Description | |------|----------------|------------------------------| | 1 | Power | Permanent +12V (ECU main) | | 2 | Ground | Power ground | | 3 | Ignition output | Ignition coil cylinder 1 | | 4 | Ignition output | Ignition coil cylinder 2 | | 5 | Ignition output | Ignition coil cylinder 3 | | 6 | Ignition output | Ignition coil cylinder 4 | | 7 | Injector output | Injector cylinder 1 | | 8 | Injector output | Injector cylinder 2 | | 9 | Injector output | Injector cylinder 3 | | 10 | Injector output | Injector cylinder 4 | | 11 | O2 sensor heater | Pre-cat O2 heater (bank1) | | 12 | O2 sensor heater | Post-cat O2 heater | | 13 | MAF signal | Mass air flow sensor signal | | 14 | MAF ground | Sensor ground | | 15 | Sensor +5V | Reference voltage | | 16 | Throttle position | TPS signal | | 17 | MAP sensor | Manifold absolute pressure | | 18 | IAT sensor | Intake air temp | | 19 | ECT sensor | Engine coolant temp | | 20 | Knock sensor 1 | Signal | | 21 | Knock sensor 2 | Signal | | 22 | Cam position | Hall sensor signal | | 23 | Engine speed | Crank sensor signal | | 24 | CAN low | Diagnostic CAN bus | | 25 | CAN high | Diagnostic CAN bus | | 26 | K-line | Diagnostic K-line (ISO 9141) | | 27 | N75 valve | Boost control solenoid | | 28 | EVAP purge | Purge valve control | | 29 | SA output | Secondary air injection relay | | 30 | Fuel pump relay | Control signal | | 31 | Main relay | Power supply relay control | | 32 | Ground | Sensor ground | | 33 | +5V | Sensor supply | | 34 | TPS ground | Throttle position ground | Keep the pad grounded for roughly 3 to
: Keeps the ECU powered for at least 15 seconds after the ignition is turned off to save fault memories and adaptive parameters.
Keep the pad grounded for roughly 3 to 5 seconds after power-up, then remove it.