Inspection/Maintenance Heated Oxygen Sensor (Ho2S) Heater System Set Procedure: Description
WARNING: This page is about a different car, the 2002 Pontiac Sunfire and 2002 Chevrolet Cavalier. However, it is still accessible from the selected car via links, so may be relevant.
The purpose of this test is to satisfy the enable criteria necessary to execute I/M readiness diagnostics for Heated Oxygen Sensor (HO2S) system. The test may be used to set the I/M system Status to YES. Ensure vehicle meets the requirements listed in conditions for running DTC before performing this test.