Me7.4.5 Pinout -

When the ECU is out of the vehicle, you can connect it to a benchtop programming setup using the main 121-pin connector. This mode allows for reading and writing to the flash memory without the need for the vehicle's wiring harness or ignition system.

To put the ME7.4.5 into Boot Mode (required for full reading/writing of the internal flash), you typically need to modify the circuit board slightly before connecting your programmer (like Kess, Galletto, or Piasini). Add Resistors : Solder two 6.8k Ohm (6k8) resistors to the designated boot points on the PCB. Remove Resistor

Click to ensure the software reads the ECU hardware and software numbers correctly. me7.4.5 pinout

Note: Double-check pin numbers, as miswiring can damage the ECU. Key Pin Assignments Typically Pin 2 (or 1) +12V Switched (Ignition): Typically Pin 4 (or 3) Ground (GND): Typically Pin 5 K-Line (Diagnosis): Pin 28 CAN High: Pin 14 (Depends on software/setup) CAN Low: Pin 15 (Depends on software/setup) Typical Wiring Example (Direct Connection) F32GN037C Cable (or similar): Red: Pin 2/1 (Power) Black: Pin 5 (GND) Blue: Boot Pin (See below) Green: K-Line or CAN 3. ME7.4.5 Boot Mode Pinout (For Tuning/Remapping)

If using the ME7.4.5 in a standalone configuration: When the ECU is out of the vehicle,

Look for the ST10F275 processor chip. You need to locate Pin 105 or its corresponding circuit board pad.

The ME7.4.5 uses three main connectors: T121 (engine harness), T94 (vehicle harness), and T80 (secondary functions). The most referenced for tuning/repair is T121 (121-pin). Add Resistors : Solder two 6

If your flash tool throws a "Wakeup Error" or "ECU Not Found" message, check the following checklist:

(immobilizer removal) or performance remapping. Accessing the full internal memory (Micro + EEPROM) often requires putting the ECU into Bosch ME7.4.5 ECU Pinout Guide | PDF | Computers - Scribd

The ME7.4.5 generally uses a large connector, often divided into smaller, labeled sections. Identifying the correct pins requires looking at the pin numbering (1, 2, 3...) molded into the connector casing itself. 2. Bosch ME7.4.5 Bench Pinout Connections