Test Description

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

The numbers below refer to the step numbers on the diagnostic table.

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

Fig 1: Too Cold In Vehicle (Steps 1 Of 7)

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Fig 2: Too Cold In Vehicle (Steps 8 Of 16)

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Fig 3: Too Cold In Vehicle (Steps 17 Of 20)

Courtesy of GENERAL MOTORS CORP.