Bosch Me20 Pinout Verified Patched (iPhone)

Set your power supply current limit to 1.0 Amp max during initial boot.

Tuners often remove the ECU from the vehicle to read and write maps (EPROM flashing). To power the ECU on the bench, they must manually jumper wires to the correct Power and Ground pins. A verified pinout prevents the "magic smoke" (component failure) that occurs when 12V is accidentally applied to a 5V logic circuit. bosch me20 pinout verified

Connect to Pin 1, 2, and 3 for main battery power. Ground (GND): Connect to Pin 12, 13, and 14. Set your power supply current limit to 1

A stabilized bench power supply (12V–13.5V, minimum 2A capability). A high-quality OBD2 breakout box or a universal boot cable. A verified pinout prevents the "magic smoke" (component

Pin 19 is the standard communication line for diagnostic tools. Boot Mode Verification

Connect your interface K-Line wire to Plug 4, Pin 11.