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July 18, 2023 Service bulletin

This bulletin announces diagnostic procedures and availability of new Engine Control Module (ECM)...

Subaru technical service bulletin 09-107-23 for 2019-2023 Subaru Ascent.

Bulletin number
09-107-23
Component
Engine and engine cooling: engine: engine control module (ecu/ECM): software
Summary
This bulletin announces diagnostic procedures and availability of new Engine Control Module (ECM) reprogramming files to address DTC P2404 (Evap System Leak Detection Pump Sense Circuit Range/Performance) detection.

Owners of these vehicles have filed 103 complaints in the engine category.

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