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DTC Check / Clear [09/2014 - ]

WARNING: This page is about a different car, the 2020 Lexus GS 350, 2019 Lexus GS 350, and 2018 Lexus GS 350. However, it is still accessible from the selected car via links, so may be relevant.
  1. DTC CHECK (TECHSTREAM) 
    1. Check the DTCs.
      1. Connect the Techstream to the DLC3.
      2. Turn the engine switch on (IG).
      3. Check the DTCs by following the prompts on the tester screen.

        HINT: 

        Refer to the Techstream operator's manual for further details.

    2. Clear the DTCs.
      1. Connect the Techstream to the DLC3.
      2. Turn the engine switch on (IG).
      3. Clear the DTCs by following the prompts on the tester screen.

        HINT: 

        Refer to the Techstream operator's manual for further details.

  2. DTC CHECK (SST CHECK WIRE) 
    1. Check the DTCs.
      GTY638271Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Using SST, connect terminals TC and CG of the DLC3 (to be in the DTC output mode).
        • SST: 09843-18040 
        TEXT IN ILLUSTRATION

        *a Front view of DLC3
      2. Turn the engine switch on (IG).
      3. "DIAG AWD" is displayed on the multi-information display, and the 4WD ECU assembly checks the system for malfunctions.
      4. If the 4WD control system is normal, "DIAG AWD FF" will be displayed on the multi-information display (normal system code).
      5. If the 4WD control system is not normal, "DIAG AWD XX (DTC)" will be displayed on the multi-information display.
    2. Clear the DTCs.
      GTY638271Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Using SST, connect terminals TC and CG of the DLC3.
        • SST: 09843-18040 
        TEXT IN ILLUSTRATION

        *a Front view of DLC3
      2. Turn the engine switch on (IG).
      3. Clear the DTCs stored in the 4WD ECU assembly by depressing the brake pedal 8 times or more within 5 seconds.
      4. Check that the AWD warning (multi-information display) displays "AWD DAIG FF".
      5. Turn the engine switch off.
      6. Remove SST from the terminals of DLC3.
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