2007 Toyota Matrix Base, AutomaticFACTORY OEM SERVICE PROCEDURE

On-Vehicle Inspection

  1. INSPECT THROTTLE BODY ASSEMBLY 
    1. Listen to the throttle control motor operating sounds.
      1. Turn the ignition switch to ON.
      2. When pressing the accelerator pedal, listen to the running sounds of the motor. Make sure no friction noises come from the motor.

        If friction noises exist, check the throttle body, wire harness and ECM.

    2. Inspect the throttle position sensor.
      1. Connect the intelligent tester to the DLC3.
      2. Turn the ignition switch to ON.
      3. Turn the intelligent tester ON.
      4. Select the menu items: DIAGNOSIS / ENHANCED OBD II / DATA LIST / ALL / THROTTLE POS.
      5. Depress the accelerator pedal. When the throttle valve is fully opened, check that the THROTTLE POS value is within the specified values.
        Fig 1: Connecting Intelligent Tester To DLC3
        G05232955Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

        Standard: 

        60 % or more 

        NOTE: When checking the standard throttle valve opening percentage, the transmission should be in the neutral position.

        If the result is not as specified, check the throttle body, wire harness and ECM.

Factory Service Tools

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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.

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