2006 Scion xB AutomaticFACTORY OEM SERVICE PROCEDURE

Throttle Body: Removal

  1. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL 
    CAUTION: Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to prevent airbag and seat belt pretensioner activation.
  2. DRAIN ENGINE COOLANT (See  ON-VEHICLE INSPECTION  ) 
  3. REMOVE AIR CLEANER ASSEMBLY 
    1. Disconnect the MAF meter connector.
    2. Disconnect the purge VSV connector.
    3. Detach the wire harness clamp.
    4. Disconnect the No. 2 purge line hose.
    5. Disconnect the ventilation hose.
    6. Disconnect the No. 1 purge line hose.
    7. Unlock the 2 clamp hooks.
    8. Loosen the hose clamp and remove the air cleaner case.
      Fig 1: Removing Air Cleaner Assembly
      G04225744Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    9. Remove the air cleaner filter element.
    10. Remove the 4 bolts and air cleaner case.
      Fig 2: Removing Bolts And Air Cleaner Case
      G04225745Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  4. REMOVE ACCELERATOR CONTROL CABLE 
    1. Loosen the nut and disconnect the accelerator control cable.
      Fig 3: Disconnecting Accelerator Control Cable
      G04225746Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  5. REMOVE TRANSMISSION OIL FILLER TUBE SUBASSEMBLY (for Automatic Transaxle) 
    1. Remove the oil dipstick.
    2. Disconnect the throttle position sensor connector.
    3. Disconnect the hose.
    4. Remove the bolt and oil cooler tube clamp.
    5. Remove the bolt and transmission oil filler tube.
    6. Remove the O-ring from the transmission oil filler tube.
      Fig 4: Removing Transmission Oil Filler Tube Subassembly
      G04225747Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  6. REMOVE THROTTLE BODY ASSEMBLY 
    1. Disconnect the IAC valve connector.
    2. Disconnect the throttle position sensor connector (for manual transaxle).
    3. Remove the wire harness clamp.
    4. Remove the bolt and 2 nuts, then remove the accelerator control cable bracket and throttle body.
    5. Remove the gasket from the intake manifold.
      Fig 5: Removing Gasket From Intake Manifold
      G04225748Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    6. Disconnect the No. 1 water by-pass hose.
    7. Disconnect the No. 2 water by-pass hose.
      Fig 6: Disconnecting Water By-Pass Hose
      G04225749Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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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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