Diagnostic Aids

WARNING: This page is about a different car, the 2007 Cadillac DTS. However, it is still accessible from the selected car via links, so may be relevant.

In order to perform valid tests when diagnosing the climate control seat (CCS) system, the ignition must be cycled OFF then ON between each test in order to reset the CCS module.
A short to battery voltage on a temperature sensor signal circuit may open the sensor.