2007 Toyota Yaris S, AutomaticFACTORY OEM SERVICE PROCEDURE

Throttle Body: Removal

  1. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL 
  2. DRAIN ENGINE COOLANT (See  REPLACEMENT  ) 
  3. REMOVE CYLINDER HEAD COVER NO. 2 (See  REMOVAL  ) 
  4. REMOVE AIR CLEANER CAP SUB-ASSEMBLY WITH AIR CLEANER HOSE NO. 1 
    1. Disconnect fuel vapor feed hose No. 1 and fuel vapor feed hose No. 2 from the vacuum switching valve assembly.
    2. Disconnect the vacuum switching valve assembly connector and wire harness clamp.
      Fig 1: Locating Vacuum Switching Valve Assembly Connector & Wire Harness Clamp
      G04828404Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Disconnect ventilation hose No. 2.
      Fig 2: Locating Ventilation Hose No. 2
      G04828405Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    4. Disconnect the wire harness clamp and mass air flow meter connector.
      Fig 3: Locating Wire Harness Clamp & Mass Air Flow Meter Connector
      G04828406Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    5. Loosen the hose clamp, unlock the air cleaner assembly clamp and remove air cleaner cap sub-assembly with air cleaner hose No. 1.
      Fig 4: Locating Air Cleaner Assembly Clamp
      G04828407Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  5. DISCONNECT WATER BY-PASS HOSE 
    1. Disconnect the water by-pass hose.
      Fig 5: Locating Water By-Pass Hose
      G04828408Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  6. DISCONNECT WATER BY-PASS HOSE NO. 2 
    1. Disconnect water by-pass hose No. 2.
      Fig 6: Locating Water By-Pass Hose No 2
      G04828409Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  7. REMOVE THROTTLE WITH MOTOR BODY ASSEMBLY 
    1. Disconnect the throttle with motor body assembly connector.
    2. Remove the nut and remove the wire harness with bracket.
      Fig 7: Locating Wire Harness Bracket Nut
      G04828410Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Remove the 2 nuts and remove the water filler sub-assembly with hose.
      Fig 8: Locating Water Filler Sub-Assembly Nuts
      G04828411Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    4. Remove the bolt and 3 nuts and remove the throttle with motor body assembly.
      Fig 9: Locating Throttle Bolt & Nuts
      G04828412Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    5. Remove the gasket from the intake manifold.
      Fig 10: Locating Intake Manifold Gasket
      G04828413Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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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