Clearing Diagnostic Trouble Codes
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2001 GMC Savana Special, 2001 GMC Savana Camper Special, 2001 GMC Savana, 2001 Chevrolet Chevy Express, and 2000 GMC Savana Special. However, it is still accessible from the selected car via links, so may be relevant.
Use a scan tool to clear DTCs in EBCM memory. After clearing DTCs, verify proper system operation. EBCM will not permit DTC clearing until all DTCs have been displayed. DTCs cannot be cleared by disconnecting the battery cables, unplugging the EBCM or turning ignition off.