Clearing Diagnostic Trouble Codes
WARNING: This page is about a different car, the 2002 Lexus ES 300. However, it is still accessible from the selected car via links, so may be relevant.
The DTCs and freeze framed data will be erased by either action. Operate the OBD II scan tool (complying with SAE J1978) or the hand-held tester to erase the codes. See the OBD II scan tool's instruction book for operating instructions.