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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> Body & Frame >> Seats >> Seat Heating And Cooling >> Diagnostic Information and Procedures >> Symptoms - Seat Heating and Cooling >> Notes

Symptoms - Seat Heating and Cooling: Notes

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. Review the system operation in order to familiarize yourself with the system functions. Refer to Heated Seats Description and Operation (KA1)  or Heated Seats Description and Operation (KA6) .