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 driver frontal high circuit voltage is more than 2.4 volts and driver frontal loop resistance is less than 6 ohms for 500 milliseconds. DTC will also clears when CLEAR CODES command is issued via scan tool. History DTC will clear once 255 malfunction free ignition cycles have occurred.