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Home >> Lexus >> 2008 >> IS 250 RWD, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (4GR-FSE) - SFI System Diagnostic Introduction >> SFI System >> DTC Check/Clear
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DTC Check/Clear

NOTE: When the diagnosis system is changed from the normal mode to check mode or vice versa, all DTCs and freeze frame data recorded in normal mode are erased. Before changing modes, always check and make a note of DTCs and freeze frame data.

HINT:

  1. CHECK DTC (Using Techstream) 
    1. Connect Techstream to the DLC3.
    2. Turn the engine switch on (IG).
    3. Turn the tester on.
    4. Enter the following menu items: Powertrain / Engine and ECT / Trouble Codes.
    5. Check the DTC(s) and freeze frame data, and then write them down.
    6. Check the details of the DTC(s) (See DIAGNOSTIC TROUBLE CODE CHART ).
  2. CLEAR DTC (Using Techstream) 
    1. Connect Techstream to the DLC3.
    2. Turn the engine switch on (IG).
    3. Turn the tester on.
    4. Enter the following menu items: Powertrain / Engine and ECT / Trouble Codes.
    5. Erase the DTCs.
  3. CLEAR DTC (Without using Techstream) 
    1. Perform either one of the following operations:
      1. Disconnect the negative battery cable for more than 1 minute.
      2. Remove the EFI and ETCS fuses from the engine room J/B and R/B No. 2 located inside the engine compartment for more than 1 minute.