Mike's Workshop Manuals: Service manuals for every vehicle
Home >> Subaru >> 2017 >> WRX STI >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (Diagnostics) (P000A To P015B) (2.5L) >> Diagnostic Procedure with Diagnostic Trouble Code (DTC) >> DTC P0141 O2 Sensor Heater Circuit 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 voltage < Battery voltage x 0.88

Time Needed for Diagnosis:  4 ms x 2500 time(s)