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Home >> GMC >> 2002 >> Jimmy 2D Utility, Part Time, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 951 (Data Link Communication System) >> Diagnostic Information and Procedures >> Symptoms - Data Link Communications >> Notes

Symptoms - Data Link Communications: Notes

WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 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 symptom tables.
  1. Perform the applicable diagnostic system check before using the symptom tables in order to verify that there are no DTCs set.
  2. Review the system operation in order to familiarize yourself with the system functions. Refer to Data Link Communications Description and Operation .
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