Test Description

WARNING: This page is about a different car, the 2003 Chevrolet Corvette. 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.

12. The voltage will vary between 0-12 volts during normal operation. The HVAC control assembly connector must be connected during this step.

Fig 1: Diagnostic Table (Too Cold In Vehicle) (Steps 1-7)
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Fig 2: Diagnostic Table (Too Cold In Vehicle) (Steps 8-14)

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Fig 3: Diagnostic Table (Too Cold In Vehicle) (Steps 15-18)

Courtesy of GENERAL MOTORS CORP.