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Home >> Lexus >> 2006 >> GS 300 AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (3GR-FSE) - SFI System Diagnostics Introduction, Precaution, Parts Location, System Diagram, Diagnostic Trouble Code Chart >> 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 hanging modes, always check and make a note of DTCs and freeze frame data,

HINT:

  1. CHECK DTC (Using an intelligent tester) 
    1. Connect an intelligent tester to the DLC3.
    2. Turn the engine switch on (IG).
    3. Turn the tester ON.
    4. Enter the following menu items: DIAGNOSIS / ENHANCED OBD II / DTC INFO / CURRENT CODES.
    5. Check the DTC(s) and freeze frame data, and then write them down.
    6. See DIAGNOSTIC TROUBLE CODE CHART  to check the details of the DTC(s).
  2. CLEAR DTC (Using an intelligent tester) 
    1. Connect an intelligent tester to the DLC3.
    2. Turn the engine switch on (IG).
    3. Turn the tester ON.
    4. Enter the following menu items: DIAGNOSIS / ENHANCED OBD II / DTC INFO / CLEAR CODES.
    5. Press the YES button.
  3. CLEAR DTC (Without using an intelligent tester) 
    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 No. 2 relay block, junction block located inside the engine compartment for more than 1 minute.