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Symptoms - Cruise Control: Notes

WARNING: This page is about a different car, the 2003 Oldsmobile Bravada, 2003 GMC Envoy XL, 2003 GMC Envoy, and 2003 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
IMPORTANT: Perform the DIAGNOSTIC SYSTEM CHECK - CRUISE CONTROL   before using the symptom diagnostic table 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.

Review the system description and operation in order to familiarize yourself with the system functions. Refer to CRUISE CONTROL DESCRIPTION AND OPERATION (4.2L)   or CRUISE CONTROL DESCRIPTION AND OPERATION (5.3L)   . 

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