On-Vehicle Inspection

INSPECT SYSTEM OPERATION
1. Check that the throttle linkage moves smoothly.
  
  Fig 1: Checking That Throttle Linkage Moves Smoothly
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Inspect the operating sound of the throttle control motor.
  1. Turn the ignition switch ON.
  2. When turning the accelerator pedal position sensor lever, check the running sound of the motor. Also, check that there is no friction sound.
  If the operation is not as specified, check the throttle control motor (See INSPECTION ), wiring and ECM.
  
  Fig 2: Inspecting Operating Sound Of Throttle Control Motor
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Inspect the accelerator pedal position sensor.
  1. Connect the hand-held tester to the DLC3.
  2. Check that the MIL does not light up.
  3. When turning the accelerator pedal, position sensor lever to the full-open position.
  4. Select the following menu, DIAGNOSIS / ENHANCED OBD II / DATA LIST / THROTTLE POS.
    Standard throttle valve opening percentage:
    
    60 % or more
  If the operation is not as specified, check that the accelerator pedal position sensor (See INSPECTION ), wiring and ECM.
  
  Fig 3: Connecting Hand-Held Tester To DLC3
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  If you have no hand-held tester, measure the voltage between terminals VPA and E2 of the ECM connector.
4. Inspect the air assist system.
  1. Start the engine and check that the MIL does not light up.
  2. Allow the engine to warm up to normal operating temperature.
  3. Turn the A/C conditioning switch ON to OFF, and check the idle speed.
  Idle speed (Transmission in neutral): 750 % 50 rpm
  
  Fig 4: Measuring Voltage Between Terminals VPA And E2 Of ECM Connector
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  NOTE: Perform an inspection without electrical load.
5. After checking the above (b) to (d), perform the driving test and check that there is no incongruity.