The Bosch ME7.4.5 relies on a multi-plug configuration, typically divided into three distinct modular connectors often referred to as , Plug B , and Plug C .
Always use a stabilized 12V to 13.8V power supply capable of delivering at least 2 Amperes to prevent data corruption during write cycles. 3. Boot Mode Procedure (ST10F27x Recovery)
Bosch developed the ME7.4.5 ECU primarily for PSA (Peugeot/Citroën) vehicles equipped with 1.4L and 1.6L 16-valve petrol engines. Common Vehicle Applications 206, 207, 307, Partner Citroën: C2, C3, C4, Berlingo Engine Codes: NFU (TU5JP4), KFU (ET3J4) Hardware Architecture
The ME7.4.5 ECU is designed to control petrol engines with throttle-by-wire (electronic throttle) and often integrates features like electronic immobilizers and VVT (Variable Valve Timing). me7.4.5 pinout
Understanding the involves mapping the main power (G2, H2, M3), ground (A4, M4), and diagnostics (E3/K-Line) to activate the unit outside the car. Always ensure proper voltage ( ) when connecting to prevent damage to the microprocessor. Need specific pinouts or help with your ME7.4.5? If you'd like, let me know: The exact Peugeot/Citroën model and year The engine code (e.g., TU5JP4, EW10A)
Pin numbering starts at 1 in the top-left corner of each connector.
The cover must be carefully pried open to access the internal memory and microprocessor. The Bosch ME7
Airflow/Air Metering & Idle Control
| 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 |
Auxiliary Inputs/Outputs
The is a widely used Engine Control Unit (ECU) found primarily in PSA group vehicles (Peugeot and Citroën) equipped with the 1.6L 16V engines. If you are looking for the ME7.4.5 pinout , you are likely involved in chip tuning, ECU cloning, or electrical troubleshooting.
Working with an ECU and its pinout involves risks. Always adhere to the following safety measures:
Install two 6.8kΩ (6K8) resistors as specified in Bosch ME7.4.5 ECU Pinout Guide . Boot Mode Procedure (ST10F27x Recovery) Bosch developed the
(e.g., diagnosing a no-start, bench unlocking, flashing) Share public link