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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 94 (HVAC Systems - Automatic) >> Diagnostic Information and Procedures >> DTC B0174, B0179, B0510, or B0515 >> Action Taken When the DTC Sets

Action Taken When the DTC Sets

WARNING: This page is about a different car, the 2002 Oldsmobile Bravada, 2002 GMC Envoy XL, 2002 GMC Envoy, and 2002 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.

The HVAC control module uses a default air temperature value for further automatic control calculations. The default values are not displayed on the scan tool.

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