Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

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HOMESERVICE MANUALSTOYOTA2009YARIS BASE, 4D SEDAN, AUTOMATICREPAIR AND DIAGNOSISBRAKESTRACTION CONTROLBRAKE CONTROLANTI-LOCK BRAKE SYSTEM (FOR SEDAN)DTC CHECK/CLEAR

2009 Toyota Yaris Base, 4D Sedan, Automatic

DTC Check/Clear

2009 Toyota Yaris Base, 4D Sedan, AutomaticSECTION DTC Check/Clear

DTC CHECK (USING TECHSTREAM)
1. Check DTCs.
  1. Connect the Techstream to the DLC3.
  2. Turn the ignition switch to ON.
  3. Turn the tester on.
  4. Read the DTCs using the Techstream.
    Select the following menu items: Chassis/ABS/ VSC/TRAC/ DTC.
DTC CLEAR (USING TECHSTREAM)
1. Clear the DTCs.
  1. Connect the Techstream to the DLC3.
  2. Turn the ignition switch to ON.
  3. Turn the tester on.
  4. Clear the DTCs using the Techstream.
    Select the following menu items: Chassis/ABS/ VSC/TRAC/DTC/Clear.

DTC CHECK (USING SST CHECK WIRE)

Check DTCs.

Using SST, connect terminals TC and CG of the DLC3.
SST 09843-18040
Turn the ignition switch to ON.

Read 2-digit DTCs indicated by the blinking of the ABS warning light on the combination meter.

Fig 1: Identifying TC And CG Of DLC3 Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

HINT:

If the ABS warning light does not blink, perform relevant troubleshooting procedures. The relevant troubleshooting procedures are described in the sections listed in the table below.

ABS WARNING LIGHT REFERENCE CHART

Section Title	Reference
ABS Warning Light does not Come ON	ABS WARNING LIGHT DOES NOT COME ON
TC and CG Terminal Circuit	TC AND CG TERMINAL CIRCUIT

As an example, the blinking patterns of the normal system code and DTCs 11 and 21 are shown below.

Fig 2: Blinking Pattern (Normal System Code)
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
DTCs are explained in "DIAGNOSTIC TROUBLE CODE CHART" (See DIAGNOSTIC TROUBLE CODE CHART ).

After completing the check, disconnect SST from terminals TC and CG of the DLC3, and turn the ignition switch off.
HINT:

If 2 or more malfunctions are detected at the same time, the lowest numbered DTC is displayed first.

DTC CLEAR (USING SST CHECK WIRE)
1. Clear the DTCs.
  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
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  3. Clear the DTCs stored in the skid control ECU by depressing the brake pedal 8 times or more within 5 seconds.
  4. Check that the warning light blinks in the normal system code pattern.
  5. Remove SST from the terminals of the DLC3.
  6. Turn the ignition switch off.
    HINT:
    
    The DTCs cannot be cleared by removing the battery cable or ECU-IG fuse.
    
    Fig 4: Checking Brake Pedal Position
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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.
3. Turn the ignition switch off.

RENDER: 1.0x

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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.