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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 846 (HVAC Systems - Manual) >> Diagnostic Information and Procedures >> Air Recirculation Malfunction >> Test Description

Test Description

WARNING: This page is about a different car, the 2003 Pontiac Aztek and 2003 Buick Rendezvous. However, it is still accessible from the selected car via links, so may be relevant.

The number below refers to the step number on the diagnostic table.

  1. 9. The HVAC control module is supplied by 2 ignition-3 voltage circuits. Test the ignition-3 voltage circuit that does not supply the blower motor switch.
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