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Diagnostic Method

Courtesy of SUBARU OF AMERICA, INC.

If the duration of time while the following conditions are met is longer than the time indicated, judge as NG.

Judgment value

Malfunction Criteria	Threshold Value
Secondary oxygen sensor signal (B)	< 0.3418 V

time needed for diagnosis: 1000ms

Malfunction indicator light illumination: Illuminates when malfunction occurs in 2 continuous driving cycles.

ENGINE (DIAGNOSTICS) (H6DO)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)