DTC Check / Clear

2GR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: DTC CHECK / CLEAR

DTC CHECK / CLEAR
NOTE: All the stored DTCs and freeze frame data are erased if: 1) the ECM is changed from normal mode to check mode or vice versa; or 2) the ignition switch is turned from ON to ACC or off while in check mode.

Before changing modes, always check and make a note of any DTCs and freeze frame data.
HINT:
- DTCs which are stored in the ECM can be displayed on Techstream. Techstream can display current and pending DTCs.
- Some DTCs are not set if the ECM does not detect the same malfunction again during the second consecutive driving cycle. However, such malfunctions, detected on only one occasion, are stored as pending DTCs.

1. CHECK DTC (Using Techstream)
(a) Connect Techstream to the DLC3.
(b) Turn the ignition switch to the ON position.
(c) Turn the tester ON.
(d) Select the following menu items: Powertrain / Engine and ECT / Trouble Code.
(e) Check for the DTC(s) and freeze frame data, and then write them down.
(f) Check the details of the DTC(s) Engine Control System - SFI System.
2. CLEAR DTC (Using Techstream)
(a) Connect Techstream to the DLC3.
(b) Turn the ignition switch to the ON position.
(c) Turn the tester ON.
(d) Select the following menu items: Powertrain / Engine and ECT / Trouble Code.
(e) Erase the DTCs.
3. CLEAR DTC (Without using Techstream)
(a) Perform either one of the following operations:
(1) Disconnect the negative battery cable for more than 1 minute.
(2) Remove the EFI No. 1 and ETCS fuses from the Relay Block (R/B) located inside the engine compartment for more than 1 minute.