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Home >> Saab >> 2001 >> 9-3 Base, 4D Hatchback, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 4 (Engine Controls - Self-Diagnostics) >> Fault Code Diagnosis >> P0140: O2S Circuit - No Activity Detected, Sensor 2 >> Enable Criteria

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WARNING: This page is about a different car, the 2002 Saab 9-5 and 2001 Saab 9-5. However, it is still accessible from the selected car via links, so may be relevant.

General conditions for this trouble code: Atmospheric pressure must exceed 72 kPa and the engine coolant and intake air temperatures must exceed -7°C.

Engine running. Closed loop active. Coolant temperature above 70°C. Sensor pre-heating active. Vehicle speed above 0. A counter accumulates the time during which all the conditions are fulfilled. Another counter accumulates changes in sensor voltage.

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