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Home >> Subaru >> 2019 >> WRX Base >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 13 (Engine Control System (Diagnostics) (STI) (1 Of 4)) >> Diagnostic Procedure With Diagnostic Trouble Code (DTC) >> DTC P0141: O2 Sensor Heater Circuit Bank 1 Sensor 2 >> Diagnostic Method

Diagnostic Method

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

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 voltage < Battery voltage x 0.88

time needed for diagnosis:  4 ms x2500time(s)

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

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