Clearing Trouble Codes
DIAGNOSTIC TROUBLE CODE CLEARANCEThe following actions will erase the diagnostic trouble codes and freezed frame data.
1. Operating the OBD-II scan tool (complying with SAE J 1978) or TOYOTA hand-held tester to erase the codes. (See the OBD-II scan tool's instruction book for operating instructions.)
2. Disconnect the negative (-) terminal cable from the battery or EFI fuse.
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 freezed frame data will be erased.