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Home >> Subaru >> 2007 >> Forester X, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Diagnostic Trouble Code (DTC) Detecting Criteria (H4SO) >> Diagnostic Trouble Code (DTC) Detecting Criteria >> DTC P0140 O2 Sensor Circuit No Activity Detected (Bank 1 Sensor 2) >> Enable Condition

Enable Condition

ENABLE CONDITION

Secondary Parameters Enable Conditions
Engine coolant temperature ≥ 75°C (167°F)
Target output voltage of the rear oxygen sensor ≥ 0.6 V
Air intake amount 10 g (0.35oz)/seconds or more
Battery voltage > 10.9 V
Closed loop with the oxygen sensor In operation
Misfire detection during 200 revs. 5 times or less
Front oxygen (A/F) sensor compensation coefficient Not in limit value
Deceleration fuel cut of 5 seconds or more. Experienced