Bosch Me20 Pinout Verified Jun 2026

Here’s everything you need for bench testing, wiring repair, and swap compatibility.

The Bosch ME2.0 is an older system that utilizes K-Line communication rather than the modern CAN-bus standard for primary diagnostics. Using an unverified diagram can lead to: bosch me20 pinout verified

Usually Pin 3 of the X200 diagnostic socket or specific pins depending on the vehicle harness. Here’s everything you need for bench testing, wiring

Before diving into the pinout, you must identify which ME20 sub-version you have. Before diving into the pinout, you must identify

For basic communication and power-up on a bench, the following pin assignments are typically verified across standard ME 2.0 documentation: Ground (GND/Terminal 31): Connect to main chassis ground pins. Power (+12V Constant/Terminal 30): Connect to battery positive. Ignition (+12V Switched/Terminal 15):

To power an ME20 on the bench:

Here's a breakdown of the ME20 pinout: