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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> Accessories & Equipment >> Cruise Control Systems >> Diagnostic Information and Procedures >> Symptoms - Cruise Control >> Notes

Symptoms - Cruise Control: Notes

IMPORTANT: The following steps must be completed before using the symptom tables.
  1. Before using the symptom diagnostic table, perform the Diagnostic System Check - Vehicle , in order to verify the following conditions:
    • There are no DTCs set.
    • The module can communicate via the serial data link.
  2. Review the system operation in order to understand the system functions. Refer to Cruise Control Description and Operation .