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Home >> Lexus >> 2009 >> GX 470 >> Repair and Diagnosis >> Brakes >> Anti-Lock Brakes >> Vehicle Stability Control System (Diagnostics - Introduction) >> Vehicle Stability Control System >> DTC Check / Clear >> DTC Check / Clear
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DTC Check / Clear

  1. DTC CHECK / CLEAR (SST CHECK WIRE) 
    1. DTC check
      Fig 1: Identifying DLC3 Terminals TC & CG
      GTY130356Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Using SST, connect terminals TC and CG of the DLC3.
        • SST: 09843-18040 
      2. Turn the ignition switch to the ON position.
      3. Read the DTCs from the ABS and VSC TRAC warning lights on the combination meter.

        HINT: 

        If no code appears, inspect the TC and CG terminal circuit, and the ABS and VSC TRAC warning light circuits.

        Trouble Area See procedure
        TC and CG terminal circuit Refer to TC and CG Terminal Circuit
        ABS warning light circuit Refer to ABS Warning Light Remains ON or. Refer to ABS Warning Light does not Come ON
        VSC TRAC warning light circuit Refer to VSC TRAC Warning Light Remains ON or. Refer to VSC TRAC Warning Light does not Come ON
      4. As examples, refer to the chart below for the blinking patterns of the normal system code and trouble codes 11 and 21.
        Fig 2: Blinking Pattern Of Trouble Code (Examples Codes 11 & 21)
        GTY155005Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      5. Codes are explained in the code table. Refer to DIAGNOSTIC TROUBLE CODE CHART .
      6. After completing the check, disconnect terminals TC and CG of the DLC3, and turn off the display.

        If 2 or more DTCs are detected at the same time, the DTCs will be displayed in ascending order.

    2. DTC clear
      1. Using SST, connect terminals TC and CG of the DLC3.
        • SST: 09843-18040 
        Fig 3: Identifying DLC3 Connector Terminals
        GTY123400Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      2. Turn the ignition switch to the ON position.
      3. Clear the DTCs stored in the ECU by depressing the brake pedal 8 times or more within 5 seconds.
        Fig 4: Depressing Brake Pedal
        GTY103129Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      4. Check that the warning light indicates a normal system code.
      5. Remove the SST from the terminals of the DLC3.

        HINT: 

        Clearing the DTCs cannot be performed by removing the battery cable or the ECU-IG fuse.

  2. DTC CHECK / CLEAR (TECHSTREAM) 
    1. DTC check
      1. Connect Techstream to the DLC3.
      2. Turn the ignition switch to the ON position.
      3. Read the DTCs following the prompts on the tester screen.
    2. DTC clear
      1. Connect Techstream to the DLC3.
      2. Turn the ignition switch to the ON position.
      3. Operate Techstream to clear the codes.

        HINT: 

        Refer to Techstream operator's manual for further details.

  3. END OF DTC CHECK / CLEAR 
    1. Turn the ignition switch to the ON position
    2. Check that the ABS and VSC TRAC warning lights go off within approximately 3 seconds.