Test description

WARNING: This page is about a different car, the 2003 GMC Safari and 2003 Chevrolet Astro. 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.

6. Checks for proper operation of the coolant bypass valve.
7. The specified values are from the A/C System Performance Test.

Fig 1: Too Hot In Vehicle - Auxiliary (1 Of 2)
Courtesy of GENERAL MOTORS CORP.

Fig 2: Too Hot In Vehicle - Auxiliary (2 Of 2)
Courtesy of GENERAL MOTORS CORP.