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Home >> Lexus >> 2014 >> IS 350 Base, RWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 4 (Four Wheel Drive Control System - Diagnostics - Introduction) >> Four Wheel Drive Control System >> DTC Check / Clear [09/2018 - 09/2020] >> DTC Check / Clear [09/2018 - 09/2020]
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DTC Check / Clear [09/2018 - 09/2020]

WARNING: This page is about a different variant/trim than selected.
  1. CHECK DTC (When Using Techstream) 
    1. Check for DTCs.
      1. Connect the Techstream to the DLC3.
      2. Turn the engine switch on (IG).
      3. Turn the Techstream on.
      4. Read the DTCs following the prompts on the Techstream screen. Enter the following menus: Chassis / Four Wheel Drive / Trouble Codes.

        Chassis > Four Wheel Drive > Trouble Codes 

      5. Check the details of the DTCs.

        Refer to DTC CHECK / CLEAR [09/2018 - 09/2020] 

  2. CLEAR DTC (When Using Techstream) 
    1. Clear the DTCs.
      1. Connect the Techstream to the DLC3.
      2. Turn the engine switch on (IG).
      3. Turn the Techstream on.
      4. Operate the Techstream to clear the DTCs. Enter the following menus: Chassis / Four Wheel Drive / Trouble Codes.

        Chassis > Four Wheel Drive > Clear DTCs 

      5. According to the display on the Techstream, select the trouble code data display with the clear button.
  3. CHECK DTC (When Using SST Check Wire) 
    1. Check for DTCs.
      Fig 1: Front View Of DLC3
      GTY789467Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of DLC3
      1. Using SST, connect terminals TC (13) and CG (4) of the DLC3 (to enter DTC output mode).
        • SST: 09843-18040 
      2. Turn the engine switch on (IG).
      3. Read the DTCs displayed on the multi-information display.

        HINT: 

  4. CLEAR DTC (When Using SST Check Wire) 
    1. Clear the DTCs.
      1. Using SST, connect terminals 13 (TC) and 4 (CG) of the DLC3.
        • SST: 09843-18040 
      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 "DIAG AWD FF".
      5. Turn the engine switch off.
      6. Remove SST from the terminals of DLC3.