Clearing Diagnostic Trouble Codes
- After repairs for Diagnostic Trouble Codes (DTC) have been completed, DTCs and freeze frame data should be cleared from Engine Control Module (ECM) memory. Using scan tool or Toyota hand-held tester, follow the manufacturer's instructions and clear DTCs and freeze frame data from ECM.
- DTCs and freeze frame data may also be cleared by removing EFI fuse (20-amp). EFI fuse is located in fuse/relay box at driver's side front corner of engine compartment. DTCs and freeze frame data may also be cleared by disconnecting negative battery cable. However, other various memory functions such as the clock, radio, alarm, seats, etc. will be cleared and must be reset.
NOTE:
If using Toyota hand-held tester, DTCs and freeze frame data may be cleared from ECM by switching from CHECK mode to NORMAL mode, or from NORMAL mode to CHECK mode, or if ignition switch is turned from ON to ACC or OFF position during CHECK mode.