Conditions For Clearing DTC
WARNING: This page is about a different car, the 2000 Buick Park Avenue. However, it is still accessible from the selected car via links, so may be relevant.
DTC will clear when deployment loop resistance is 4.8 ohms or less for 500 milliseconds or when high side voltage is greater than 2.4 volts and deployment loop resistance is less than 6 ohms for 500 milliseconds. Issuing a CLEAR CODES command via scan tool will also clear DTC. History DTC will clear once 255 malfunction free ignition cycles have occurred.