Symptoms-Cruise Control: Notes
WARNING: This page is about a different car, the 2003 GMC Sierra, 2003 GMC Cab & Chassis Sierra, 2003 Chevrolet Silverado, and 2003 Chevrolet Cab & Chassis Silverado. 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 symptoms table.
- Perform the Diagnostic System Check-Cruise Control
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.
- Review the system operation in order to familiarize yourself with the system functions. Refer to Cruise Control Description And Operation (4.3L) or Cruise Control Description And Operation (4.8L, 5.3L, 6.0L, And 8.1L) or Cruise Control Description And Operation (6.6L) .