Me7.4.5 Pinout May 2026

Bosch ME7.4.5 is a common Engine Control Unit (ECU) used primarily in Peugeot and Citroën (PSA) vehicles with the 1.6 16v (TU5JP4) engine

Technical Report: BMW ME7.4.5 ECU Pinout Documentation me7.4.5 pinout

For detailed schematics of specific vehicle models, such as the Citroën C4, technical manuals provide full wiring diagrams that map these ECU pins to their corresponding engine sensors. Bosch ME7

for full system reading/writing (MICRO + EEPROM), technical guides from Piasini Engineering specify the following hardware modifications: Add Resistors : Install two 6.8k ohm (6K8) resistors as part of the boot circuit. Remove Resistor Pin numbers and functions differ by vehicle model,

…you will need a reliable ME7.4.5 pinout diagram.

• Pin numbers and functions differ by vehicle model, year, and ECU hardware revision — verify with OEM wiring diagrams or measure with a multimeter/oscilloscope.
• Never apply battery + directly to injector/ignition outputs.
• Disconnect battery before doing major wiring.
• Use correct pinouts for your exact ME7.4.5 part number (ECU label) and connector housing.

Additionally, you can find more information and resources on our website, including: