On-Vehicle Inspection

CHECK THROTTLE BODY
1. Check the throttle control motor operating sound.
  1. Turn the ignition switch ON.
  2. When pressing the accelerator pedal, check the operating sound of the running motor. Make sure that no friction noises emit from the motor. If friction noise exists, replace the throttle body.
  Fig 1: Checking Throttle Control Motor Operating Sound
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Check the throttle position sensor.
  1. Connect the intelligent tester (with CAN VIM) to the DLC3.
    
    Fig 2: Connecting Intelligent Tester (With CAN VIM) To DLC3
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  2. Turn the ignition switch ON.
  3. Push the intelligent tester main switch ON.
  4. Enter the following menus: Powertrain / Engine and ETC / Data List / Throttle Sensor Position.
  5. Depress the accelerator pedal. When the throttle valve is fully opened, check that the value of the "Throttle Sensor Position" is within the specification.
    Standard throttle valve opening percentage: 60% or more
    
    NOTE: When checking the standard throttle valve opening percentage, the shift lever should be in the N position.
    
    If the percentage is less than 60%, inspect the ECM or harness (see DTC P0115, P0117, P0118: Engine Coolant Temperature Circuit; Engine Coolant Temperature Circuit Low Input; Engine Coolant Temperature Circuit High Input ).