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Home >> Subaru >> 2006 >> Baja Turbo, Automatic >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 17 (Diagnostic Trouble Code (DTC) Detecting Criteria (H4SO)) >> Diagnostic Trouble Code (DTC) Detecting Criteria >> DTC P0031 - Ho2S Heater Control Circuit Low (Bank 1 Sensor 1) - >> Diagnostic Method

Diagnostic Method

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Judge NG when the continuous time of completing all the malfunction criteria below becomes more then 4.5 seconds.

Judgment Value 

JUDGMENT VALUE

Malfunction Criteria Threshold Value
Heater circuit ON
Heater both edge voltage <5 V
Heater current < 1.5 A

Time Needed for Diagnosis:  10 seconds

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