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Home >> Subaru >> 2017 >> Legacy 2.5i Limited >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 14 (Engine Control System (Diagnostics) (P0161 To P0685) (H6DO)) >> Diagnostic Procedure with Diagnostic Trouble Code (DTC) >> DTC P0455 EVAP System (CPC) Leak Detected (Large Leak) >> Diagnostic Method >> Mode C (Switching valve operation confirmation)

Mode C (Switching valve operation confirmation)

WARNING: This page is about a different variant/trim than selected.

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 < 224 Pa (1.68 mmHg, 0.1 inHg) P2404