Checking if the ECU is receiving power or ground when the car won't start.
Ensure your power source provides a steady 12.5V to 13.5V. Voltage drops during a "write" process can brick the ECU. me745 pinout free
To communicate with the ECU using a tool like KESS, KTAG, or Galletto on your workbench, you generally only need to connect to five or six specific pins. 1. Power Supply (+12V) Checking if the ECU is receiving power or