SUBARU

15-340-26

2026-07-31 · NHTSA 11035662

A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.

Manufacturer summary

Original wording in English

This bulletin announces the availability of reprogramming files for the Central Electronic Control Module (C-ECM). The updated logic has been developed to address Diagnostic Trouble Code (DTC) B2A20 - LOST COMMUNICATION ETHERNET FROM DCM TO HU.

Repeated filings are grouped only when make, bulletin number, publication date and complete summary agree. Original record numbers are retained. Older publications remain available, and an explicit later version is shown when established. Pre-1994 vehicle associations are separated from default results; an unspecified year does not mean all model years apply.