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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 410 (Engine Controls - Self Diagnostics - 4.3L) >> Diagnostic Tests >> DTC P0140: Ho2S Circuit - Insufficient Activity - Bank 1, Sensor 2 & DTC P0160: Ho2S Circuit - Insufficient Activity - Bank 2, Sensor 2 >> Test Description

Test Description

WARNING: This page is about a different car, the 2003 GMC Sierra and 2003 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.

The number below refers to the step number in the diagnostic procedures.

  1. 2

    If the voltage above and below the specified value, the condition is not present.

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