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Home >> Subaru >> 2006 >> B9 Tribeca Base >> Repair and Diagnosis (Single Page) >> Engine Performance >> Testing & Diagnosis >> Diagnostic Trouble Code (DTC) Detecting Criteria (H6DO) >> Diagnostic Trouble Code (DTC) Detecting Criteria >> DTC P0026 Intake Valve Control Solenoid Circuit Range/Performance (Bank 1) >> Diagnostic Method
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Diagnostic Method

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 - ABNORMALITY JUDGMENT

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 0.784 seconds

High side: 3.0 seconds

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

Normality Judgment 

When the continuous time is more than 3 seconds while the following conditions are established, judge as OK and clear the NG.

Judgment Value 

JUDGMENT VALUE - NORMALITY JUDGMENT

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