Clearing DTCS
WARNING: This page does not describe the selected car, but rather 54 other vehicles, including the 1999 Oldsmobile Bravada, 1999 GMC Yukon, 1999 GMC Suburban, 1999 GMC Sonoma, and 1999 GMC Savana Special. However, it is still accessible from the selected car via links, so may be relevant.
Use a scan tool to clear the DTCs in the EBCM memory. After clearing the codes, verify proper system operation. The 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 OFF the ignition.