Conditions For Clearing DTC
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2003 GMC Yukon XL, 2003 GMC Yukon, 2003 Chevrolet Tahoe, 2003 Chevrolet Suburban, and 2003 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
Current DTC clears when condition responsible for DTC no longer exists and CLEAR CODES command is issued via scan tool. History DTC clears when 255 malfunction free ignition cycles have occurred.