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Home >> Subaru >> 2017 >> Forester 2.0XT Touring >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> Engine Control System (Diagnostics) (P000A To P015B) (H4DOTC) >> Diagnostic Procedure with Diagnostic Trouble Code (DTC) >> DTC P0038 A/F/O2 Heater Control Circuit High Bank 1 Sensor 2 >> Diagnostic Method

Diagnostic Method

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

JUDGMENT VALUE SPECIFICATION

Malfunction Criteria Threshold Value
Output current ≥ 17A

Time needed for diagnosis:  2500 ms

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

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