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Home >> GMC >> 2006 >> Sierra 1500 HD, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1143 (Seat Heating System & Seat Cooling System) >> Diagnostic Information and Procedures >> Symptoms - Seat Heating and Cooling >> Notes

Symptoms - Seat Heating and Cooling: Notes

WARNING: This page is about a different car, the 2008 Cadillac CTS. However, it is still accessible from the selected car via links, so may be relevant.
IMPORTANT: The following steps must be completed before using the symptom tables.
  1. Perform the Diagnostic System Check - Vehicle before using the symptom tables in order to verify that all of the following are true:
    • There are no DTCs set.
    • The control modules can communicate via the serial data link.
  2. Refer to Heated/Vented Seat Description and Operation  in order to familiarize yourself with the system functions.
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