Test Description

WARNING: This page is about a different car, the 2003 Pontiac Grand Prix. 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.

15. 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 Hot In Vehicle - Diagnostic Table (Steps 1 - 7)

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Fig 2: Too Hot In Vehicle - Diagnostic Table (Steps 8 - 14)

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Fig 3: Too Hot In Vehicle - Diagnostic Table (Steps 15 - 21)

Courtesy of GENERAL MOTORS CORP.