Clearing Fault Codes
WARNING: This page does not describe the selected car, but rather 58 other vehicles, including the 1992 Oldsmobile Bravada, 1992 GMC Yukon, 1992 GMC Suburban, 1992 GMC Sonoma, and 1992 GMC Safari. However, it is still accessible from the selected car via links, so may be relevant.
Turn ignition on. Using a jumper wire, connect ALDL connector terminal "H" to terminal "A" for 2 seconds. Remove jumper wire for one second. Again, jumper ALDL connector terminal "H" to "A" for 2 seconds. Remove jumper wire. Fault codes are cleared when ANTILOCK and BRAKE lights illuminate, then turn off. Turn ignition off. Check to verify codes are cleared. See RETRIEVING CODES .