Test Description

WARNING: This page is about a different car, the 2003 Pontiac Montana, 2003 Oldsmobile Silhouette, and 2003 Chevrolet Venture. 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.

13. The voltage will vary between.25-14.7 volts during normal operation. The HVAC control module connector must be connected during this step.

Fig 1: Diagnostic System Check - Too Hot In Vehicle (1 Of 3)

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Fig 2: Diagnostic System Check - Too Hot In Vehicle (2 Of 3)

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Fig 3: Diagnostic System Check - Too Hot In Vehicle (3 Of 3)

Courtesy of GENERAL MOTORS CORP.