Wakes up the main processor. Verified Pin: Plug 1, Pin 3 2. Communication Interfaces
: Typically connected to the ECU casing or specific ground pins on the larger connector.
The ECU uses internal solid-state switches to ground these pins, completing the circuit to fire the components. Fuel Injector Cylinder 1 Control Pin 51: Fuel Injector Cylinder 2 Control Pin 52: Fuel Injector Cylinder 3 Control Pin 53: Fuel Injector Cylinder 4 Control Pin 60: Ignition Coil Pack 1 Trigger Pin 61: Ignition Coil Pack 2 Trigger Pin 68: Fuel Pump Relay Control Signal bosch me20 pinout verified
Sometimes people confuse ME pinouts with Simos (like Simos 18), but the Bosch ME housing shapes (the "Sandcastle" design) are distinct. The pin numbering (1-xx on one side, xx-yy on the other) is counter-intuitive compared to Japanese ECUs.
For those looking for professional hardware or ready-to-go units, retailers like ECU Team Corp offer verified base pinouts and replacement ECUs. ECU Team Corp Are you working on a virginizing procedure or a specific engine swap for this ECU? Wakes up the main processor
Whether you need to read flash data on a bench tool, diagnose a no-start condition, or troubleshoot communication issues, this verified pinout guide provides the exact connection points required. ⚠️ Safety Warning & Bench Setup Protocol
use a fused 12V DC power supply rated for at least 3A to 5A. The ECU uses internal solid-state switches to ground
Test continuity between the ECU K-Line pin and the diagnostic port to ensure the wire isn't broken or shorted to ground. Crank, No Start (No Spark / No Fuel) If the engine spins but fails to catch: