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HOMESERVICE MANUALSTOYOTA2009YARIS BASE, 4D SEDAN, AUTOMATICREPAIR AND DIAGNOSISBRAKESTRACTION CONTROLBRAKE CONTROLANTI-LOCK BRAKE SYSTEM (FOR HATCHBACK)DTC CHECK/CLEAR
2009 Toyota Yaris Base, 4D Sedan, Automatic

DTC Check/Clear

2009 Toyota Yaris Base, 4D Sedan, AutomaticSECTION DTC Check/Clear
  1. DTC CHECK/CLEAR (Using Techstream) 
    1. Check the DTC.
      1. Connect the Techstream to the DLC3.
      2. Turn the ignition switch to ON.
      3. Enter the following menus: Chassis/ABS/VSC/ TRC/Trouble Codes.

        HINT:

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

    2. Clear the DTC.
      1. Connect the Techstream to the DLC3.
      2. Turn the ignition switch to ON.
      3. Enter the following menus: Chassis/ABS/VSC/ TRC/Trouble Codes.
      4. Clear the DTCs by following the prompts on the Techstream.

        HINT:

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

  2. DTC CHECK/CLEAR (for Using SST Check Wire) 
    1. Check the DTC.
      1. Using SST, connect terminals TC and CG of the DLC3.

        SST 09843-18040 

      2. Turn the ignition switch to ON.
      3. Observe the blinking pattern of the ABS warning light in order to identify the DTC.

        HINT:

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

        Fig 1: Identifying TC And CG Of DLC3 Connector Terminals
        G05389448Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        ABS WARNING LIGHT TROUBLE AREA CHART

        Trouble Area See procedure
        ABS warning light circuit (Remains on) ABS WARNING LIGHT REMAINS ON 
        ABS warning light circuit (Does not come on) ABS WARNING LIGHT DOES NOT COME ON 
        TC and CG terminal circuit TC AND CG TERMINAL CIRCUIT 
      4. As an example, the illustration below shows the blinking patterns of the normal system code and trouble codes 11 and 21 for ABS warning light.
        Fig 2: Identifying Blinking Pattern (Normal System Code And Trouble Codes 11 And 21)
        G05389443Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      5. The codes are explained in the code table.

        Code Table 

        ABS WARNING LIGHT TROUBLE CODE CHART

        ABS Warning Light Number of Blinks Techstream Display
        11 C0278
        12 C0279
        13 C0273
        14 C0274
        21 C0226
        22 C0236
        23 C0246
        24 C0256
        31 C1401
        C1405
        32 C1402
        C1406
        33 C1403
        C1407
        34 C1404
        C1408
        35 C1413
        36 C1414
        38 C1415
        39 C1416
        41 C1241
        C1417
        49 C1425
        51 C1427
        C1428
        94 U0073
      6. After completing the check, disconnect terminals TC and CG of the DLC3.

        HINT:

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

    2. Clear the DTC.
      1. Using SST, connect terminals TC and CG of the DLC3.

        SST 09843-18040 

      2. Turn the ignition switch to ON.
        Fig 3: Identifying TC And CG Of DLC3 Connector Terminals
        G05389448Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      3. Clear the DTCs stored in the ECU by depressing the brake pedal 8 times or more within 5 seconds.
      4. Check that the warning light indicates a normal system code.
      5. Remove SST from the terminals of the DLC3.

        HINT:

        Clearing the DTCs cannot be performed by disconnecting the battery terminal or the ECU-IG fuse.

        Fig 4: Checking Brake Pedal Position
        G04832173Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  3. END OF DTC CHECK/CLEAR 
    1. Turn the ignition switch to ON.
    2. Check that the ABS warning light goes off within approximately 3 seconds.
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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.