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Home >> Pontiac >> 2001 >> Aztek Base, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 89 (Engine Control System Self-Diagnostics - 3.1L Engine) >> Inspection/Maintenance Procedures >> Inspection/Maintenance Heated Oxygen Sensor (Ho2S) Heater System Set Procedure >> Description

Inspection/Maintenance Heated Oxygen Sensor (Ho2S) Heater System Set Procedure: Description

WARNING: This page is about a different car, the 2002 Pontiac Grand Prix, 2002 Chevrolet Malibu, and 2002 Buick Century. 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.

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