On-Vehicle Inspection

1. Check the operation.
   1. Connect the hand-held tester to the DLC3.
      Fig 1: Connecting Hand-Held Tester To DLC3

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   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 menu items: DIAGNOSIS / ENHANCED OBD II / ACTIVE TEST / WT CTRL B1.
   6. Operate the OCV using the hand-held tester, then check the engine speed.

      Standard: 

      TESTER CONDITION SPECIFICATION
      
      

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

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

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.
      Fig 2: Connecting Hand-Held Tester To DLC3

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   2. Turn the ignition switch to ON.
   3. Turn the hand-held 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.

Standard: 60% or more 

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

1. Inspect the voltage.
   1. Connect the hand-held tester to the DLC3.
      Fig 3: Connecting Hand-Held Tester To DLC3

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   2. Turn the ignition switch to ON.
   3. Turn the hand-held tester ON.
   4. Select the menu items: DIAGNOSIS/ENHANCED OBD II/DATA LIST/ALL/ACCEL POS #1, ACCEL POS #2.
   5. Operate the accelerator pedal, then check that of the ACCEL POS #1 and ACCEL POS #2 values are within the specified values.

      ACCEL POS #1: 

      VOLTAGE SPECIFICATION ACCEL POS #1
      
      

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

      ACCEL POS #2: 

      VOLTAGE SPECIFICATION ACCEL POS #2
      
      

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

If the result is not as specified, check the accelerator pedal, wire harness and ECM.