2005 Toyota Corolla LE, AutomaticFACTORY OEM SERVICE PROCEDURE

On-Vehicle Inspection

  1. INSPECT CAMSHAFT TIMING OIL CONTROL VALVE ASSY 
    1. Check the operation.
      1. Connect the hand-held tester to the DLC3.
      2. Turn the ignition switch to ON.
      3. Turn the hand-held tester ON.
      4. Start the engine and warm it up.
      5. Select the following menu items: DIAGNOSIS / ENHANCED OBD II / ACTIVE TEST / VVT CTRL B1.
      6. Operate the OCV using the hand-held tester, then check the engine speed.
      Fig 1: Connecting Hand-Held Tester To DLC3
      G02612184Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard: 

      TESTER CONNECTION AND SPECIFIED CONDITION SPECIFICATION

      Tester Operation Specified Condition
      OCV is OFF Normal engine speed
      OCV is ON Rough idling engine stall

    If the operation is not as specified, check the camshaft timing oil control valve, wire harness and ECM.

  2. INSPECT THROTTLE BODY ASSY 
    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 hand-held tester to the DLC3. (See Fig 1)
      2. Turn the ignition switch to ON.
      3. Turn the hand-held tester ON.
      4. Select the following 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.

    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.

  3. INSPECT ACCELERATOR PEDAL ASSY 
    1. Check the voltage.
      1. Connect the hand-held tester to the DLC3. (See Fig 1)
      2. Turn the ignition switch to ON.
      3. Turn the hand-held tester ON.
      4. Select the following menu items: DIAGNOSIS / ENHANCED OBD II / DATA LIST / ALL / ACCEL POS #1, ACCEL POS #2.
      5. Operate the accelerator pedal, then check that the ACCEL POS #1 and ACCEL POS #2 values are within the specified values.

    ACCEL POS #1: 

    PEDAL CONDITION AND SPECIFIED CONDITION SPECIFICATION

    Accelerator Pedal Condition Specified Condition
    Released 0.5 to 1.1V
    Depressed 2.6 to 4.5V

    ACCEL POS #2: 

    PEDAL CONDITION AND SPECIFIED CONDITION SPECIFICATION

    Accelerator Pedal Condition Specified Condition
    Released 1.2 to 2.0 V
    Depressed 3.4 to 5.0 V

    If the result is not as specified, check the accelerator pedal, 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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