Pinout | Simos 3.3a

The Simos 3.3a is most frequently found in transversely mounted engine configurations. Common vehicle applications include:

Pin 34 (K-Line) is your gateway to everything. Unlike MED9.5, the SIMOS 3.3A does not support OBD-II flashing on the CAN bus. You must use pin 34 at 10400 baud for boot mode or 9600 baud for standard diag. simos 3.3a pinout

This article provides an in-depth breakdown of the pin configuration, common applications, and critical procedures involving this ECU. The Simos 3

: While the SIMOS 3.3A can sometimes be read via OBD, bench connections are often more reliable for full backups or when the ECU is "alive" but failing to communicate through the vehicle's diagnostic port . You must use pin 34 at 10400 baud

: It communicates over the K-Line protocol; modern CAN-bus only tools may not support this ECU without a dedicated K-Line adapter. Common Bench Operations Simos 3.3A Octavia 1.6, pedal mapping - ECU Connections