LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Subaru >> 2018 >> Crosstrek Base, Standard Trans >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (Diagnostics) (2 Of 4) >> Diagnostic Procedure with Diagnostic Trouble Code (DTC) >> DTC P0455: EVAP System (CPC) Leak Detected (Large Leak) >> Diagnostic Method >> Mode C (Switching Valve Operation Confirmation)
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Mode C (Switching Valve Operation Confirmation)

Purpose: Measure the pressure increase when switching valve is changed from open to close, and detect the stuck to open/close malfunctions of the switching valve.

Judge as NG when the following conditions are established.

JUDGMENT VALUE SPECIFICATION

Malfunction Criteria Threshold Value DTC
Pressure sensor output value - Reference pressure for setting the target negative pressure Less than 224Pa (1.68mmHg, 0.1inHg) P2404