With Manufacturer's Scan Tool

The following actions will erase the diagnostic trouble codes and freeze frame data.
1. Operating the OBDII scan tool (complying with SAE J1978) or TOYOTA hand-held tester to erase the codes. (See the OBDII scan tool's instruction book for operating instructions.)
2. Disconnecting the battery terminals or EFI fuse.

NOTE: If the TOYOTA hand-held tester switches the engine control module from normal mode to check mode or vice-versa, or if the ignition switch is turned from ON to ACC or OFF during check mode, the diagnostic trouble codes and freeze frame data will be erased.