The Bosch ME7.4.5 (often referred to as ME745) is a widely used Engine Control Unit (ECU) in PSA Group vehicles—Peugeot and Citroën—from the mid-2000s to the 2010s. Whether you are performing a tuning project, repairing a vehicle, or attempting to clone an ECU for a swap, having an accurate pinout diagram is essential.
Connect the CAN-H line to Pin A4 and CAN-L to Pin A3 . If your diagnostic tool reads over K-Line, hook the interface line directly to Pin G3 . me745 pinout free
To help you understand the ME745 pinout, we have created a free downloadable pinout diagram. The Bosch ME7
For standard reading, writing, and diagnostic wake-up, connect your bench harness using the following pin map: Bosch ME7.4.5 (Citroen Peugeot) IMMO OFF If your diagnostic tool reads over K-Line, hook
Websites like , SMD Codebook , or RFM (Radio Frequency Management) allow you to search by the marking code.
The ME745 is a specific microcontroller or processor unit used in various applications, including industrial control systems, automotive electronics, and embedded systems. Understanding its pinout is crucial for designing and developing compatible hardware, such as PCBs (Printed Circuit Boards), interfaces, and peripheral devices.
Use these specific pin assignments to connect your chip調校 (tuning) tool on the bench via K-Line or CAN bus. Power and Communication Pins Connection Type Connector & Pin Number Wire Function Connector A, Pin G4 12V Battery Positive Switched Power (+15) Connector A, Pin H4 12V Ignition On Ground (GND) Connector A, Pin H1 Chassis Earth Ground (GND) Alternative Connector A, Pin G1 Chassis Earth K-Line Diagnostic Connector A, Pin B4 Serial Communication CAN High (CAN-H) Connector A, Pin D4 High-Speed Network CAN Low (CAN-L) Connector A, Pin E4 High-Speed Network Detailed Connector Pinouts Connector A (32-Way Black) - Power & Body Control A1 to A3 : Unused B4 : K-Line diagnostic line C3 : Alternator charge warning lamp signal D4 : CAN High communication link E4 : CAN Low communication link F1 : Main power relay control output G1 : Main system ground G4 : Permanent +12V battery supply H1 : Main system ground H4 : Switched +12V ignition supply Connector B (48-Way Brown) - Engine Sensors A1 : Engine coolant temperature sensor signal B2 : Intake air temperature sensor signal C1 : Manifold absolute pressure (MAP) sensor signal D3 : Camshaft position sensor signal E1 : Crankshaft position sensor signal (+) E2 : Crankshaft position sensor signal (-) F3 : Knock sensor signal (+) G2 : Throttle position sensor track 1 G3 : Throttle position sensor track 2 H1 : Sensor 5V reference supply voltage H2 : Sensor signal ground return Connector C (32-Way Grey) - Actuators & Ignition A1 : Cylinder 1 injector control circuit A2 : Cylinder 2 injector control circuit B1 : Cylinder 3 injector control circuit B2 : Cylinder 4 injector control circuit C3 : Electronic throttle body motor control (+) C4 : Electronic throttle body motor control (-) D1 : Ignition coil cylinder 1 and 4 control D2 : Ignition coil cylinder 2 and 3 control E3 : Upstream O2 sensor heater control F3 : Downstream O2 sensor heater control G1 : Canister purge valve control Technical Notes for Wiring