LEMON Manuals: Even more car manuals for everyone
Home >> Subaru >> 2017 >> WRX STI >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System (Diagnostics) (P000A To P015B) (2.5L) >> Diagnostic Procedure with Diagnostic Trouble Code (DTC) >> DTC P0031 A/F/O2 Heater Control Circuit Low Bank 1 Sensor 1 >> 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 < 1.9 V

Time Needed for Diagnosis:  4 ms x 250 time(s)

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

scientia non olet · About LEMON Manuals