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Home >> Subaru >> 2006 >> Legacy GT spec.B >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 15 (Diagnostic Trouble Code (DTC) Detecting Criteria (H4SO)) >> Diagnostic Trouble Code (DTC) Detecting Criteria >> DTC P0026 Intake Valve Control Solenoid Circuit Range/Performance (Bank 1) >> Diagnostic Method

Diagnostic Method

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

Abnormality Judgment 

Judge as NG when the continuous time is longer than the predetermined time when the following conditions are established.

Judgment Value 

JUDGMENT VALUE CHART

Malfunction Criteria Threshold Value
Low NG  
Duty ratio ≥ 62%
Variable valve lift diagnosis oil pressure switch OFF
High NG  
Duty ratio < 33%
Variable valve lift diagnosis oil pressure switch ON

Time Needed for Diagnosis: 

Low side High side

0.784 seconds 3.0 seconds

Malfunction Indicator Light Illumination:  Illuminates as soon as a malfunction occurs.

Normality Judgment 

Judge as OK and clear the NG when the continuous time when the following conditions are established are more than 3 seconds.

Judgment Value 

JUDGMENT VALUE CHART

Malfunction Criteria Threshold Value
Low OK  
Duty ratio ≥ 62%
Variable valve lift diagnosis oil pressure switch ON
High OK  
Duty ratio < 33%
Variable valve lift diagnosis oil pressure switch OFF