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Home >> GMC >> 2003 >> Yukon Base, 4.8 V, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 201 (Starting System) >> Trouble Shooting >> Engine Electrical Symptoms >> Notes

Engine Electrical Symptoms: Notes

WARNING: This page is about a different car, the 2003 Cadillac CTS. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: The following steps must be completed before using the symptom table:
  • Perform ENGINE ELECTRICAL DIAGNOSTIC SYSTEM CHECK  under SELF-DIAGNOSTIC SYSTEM before using the symptom table in order to verify that there are no DTCs set and that the control modules can communicate via the serial data link.
  • Review the system descriptions and operations in order to familiarize yourself with the system functions. See DESCRIPTION & OPERATION  .