With Manufacturer's Scan Tool

The following action will erase the diagnostic trouble codes and freeze frame data.
- Operate the TOYOTA hand-held tester to erase the codes.

NOTICE: If the TOYOTA hand-held tester switches the ECM 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.