Important Preliminary Checks: Notes
WARNING: This page does not describe the selected car, but rather 20 other vehicles, including the 1994 GMC Yukon, 1994 GMC Vandura Special, 1994 GMC Vandura, 1994 GMC Suburban, and 1994 GMC Rally Camper Special. However, it is still accessible from the selected car via links, so may be relevant.
Ensure you have performed the On-Board Diagnostic System Check and determined that:
- The Control Module and MIL (Malfunction Indicator Lamp) are operating correctly
- There are no Diagnostic Trouble Codes (DTCs) stored, or a DTC exists but without a MIL.