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Home >> Pontiac >> 2003 >> Aztek AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls Self-Diagnostics >> Diagnostic Tests >> DTC P0030: Ho2S Heater Control Circuit - Sensor 1 >> Test Description
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Test Description

The numbers below refer to the step numbers in the diagnostic procedures.

  1. 4 -  A DTC fail in this step verifies the problem is present with the HO2S 1 disconnected.
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