Subaru Legacy 2015 — technical service bulletin
Bulletin 09-103-23 · NHTSA communication 10240103 · issued Jul 10, 2023
Technical service bulletin
communication type
Engine and Engine Cooling
component
2015
model years
2
vehicle entries
Official summary
This bulletin the announces diagnostic procedures and availability of new Engine Control Module (ECM) reprogramming files to address DTC P2404 (Evap System Leak Detection Pump Sensor Circuit Range/Performance) detection.
Vehicles covered
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.