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HOMESERVICE MANUALSTOYOTA2009FJ CRUISER RWDREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCETESTING & DIAGNOSISENGINE CONTROL SYSTEM - SFI SYSTEM INTRODUCTION, PRECAUTION, PARTS LOCATION, TROUBLESHOOTING, SYMPTOMS TABLE, DIAGNOSTIC TROUBLE CODE CHARTSFI SYSTEMDTC CHECK/CLEAR
2009 Toyota FJ Cruiser RWD

DTC Check/Clear

2009 Toyota FJ Cruiser RWDSECTION DTC Check/Clear
NOTE: When the diagnosis system is changed from 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:

  • DTCs which are stored in the ECM can be displayed on a Techstream. A Techstream can display current and pending DTCs.
  • Some DTCs are not set if the ECM does not detect the same malfunction again during a second consecutive driving cycle. However, such malfunctions, detected on only one occasion, are stored as pending DTCs.
  1. CHECK DTC (Using a Techstream) 
    1. Connect a Techstream to the DLC3.
    2. Turn the ignition switch ON.
    3. Turn the tester ON.
    4. Select 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 a Techstream) 
    1. Connect a Techstream to the DLC3.
    2. Turn the ignition switch ON.
    3. Turn the tester ON.
    4. Select the following menu items: Powertrain / Engine and ECT / Trouble Codes.
    5. Erase the DTCs.
  3. CLEAR DTC (Without using a 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 Relay Block (R/B) located inside the engine compartment for more than 1 minute.
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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.