Introduction
This service bulletin announces diagnostic procedures and reprogramming files to address DTC P2404 (Evap System Leak Detection Pump Sense Circuit Range/Performance) detection.
Caution
Vehicle servicing performed by untrained persons could result in serious injury to those persons or to others.
Only professional technicians with the necessary equipment, tools, safety instructions, and know-how should perform the servicing.
Service Procedure
The service procedure involves checking DTCs, performing reprogramming, and conducting the Evaporative System Leak Test.
The procedure also includes cleaning up the drain tube, performing diagnosis following the applicable Service Manual, and replacing the ELCM if necessary.
Manual:
Download: 2023 Subaru Legacy & Outback Service Bulletin
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