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Home >> GMC >> 2002 >> Jimmy 2D Utility, Part Time, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 1399 (Data Link Communication System) >> Diagnostic Information and Procedures >> Symptoms - Data Link Communications >> Notes

Symptoms - Data Link Communications: Notes

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2004 Oldsmobile Bravada, 2004 GMC Envoy XUV, 2004 GMC Envoy XL, 2004 GMC Envoy, and 2004 Chevrolet TrailBlazer. 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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