2005 Scion xB AutomaticFACTORY OEM SERVICE PROCEDURE

Knock Sensor: Replacement

  1. DRAIN ENGINE COOLANT (See  ENGINE COOLANT (1NZ-FE) (FROM APRIL, 2004)  ) 
  2. REMOVE AIR CLEANER ASSY (See  REMOVAL & INSTALLATION AND DISASSEMBLY & REASSEMBLY  ) 
  3. SEPARATE ACCELERATOR CONTROL CABLE ASSY (See  REMOVAL & INSTALLATION AND DISASSEMBLY & REASSEMBLY  ) 
  4. REMOVE TRANSMISSION OIL LEVEL GAGE SUB-ASSY (AUTOMATIC TRANSAXLE) 
  5. REMOVE TRANSMISSION OIL FILLER TUBE SUB-ASSY (AUTOMATIC TRANSAXLE) (See  REMOVAL & INSTALLATION AND DISASSEMBLY & REASSEMBLY  ) 
  6. SEPARATE THROTTLE BODY ASSY 
    1. Disconnect the ISC valve connector.
    2. Disconnect the throttle position sensor connector. (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 1: Separating Throttle Body Assembly
      G03096765Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  7. REMOVE CYLINDER HEAD COVER NO. 2 
    1. Remove the 4 nuts and cylinder head cover.
      Fig 2: Removing Cylinder Head Cover No. 2
      G03096766Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  8. DISCONNECT RADIATOR HOSE INLET 
    Fig 3: Disconnecting Radiator Hose Inlet
    G03096767Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  9. REMOVE OIL LEVEL GAGE SUB-ASSY 
  10. REMOVE INTAKE MANIFOLD 
    1. Disconnect the ventilation hose.
    2. Disconnect the union to connector tube hose.
      Fig 4: Removing Intake Manifold (1 Of 2)
      G03096768Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Remove the 3 wire harness clamps.
    4. In order to remove the intake manifold, using several steps, remove the 3 bolts and 2 nuts in the sequence shown in Fig 5.
    5. Remove the gasket from the intake manifold.
      Fig 5: Removing Intake Manifold (2 of 2)
      G03096769Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  11. REMOVE KNOCK SENSOR 
    1. Disconnect the knock sensor connector.
    2. Using SST, remove the knock sensor.

      SST 09816-30010

  12. INSTALL KNOCK SENSOR 
    1. Using SST, install the knock sensor.

      SST 09816-30010

      Torque: 44 N.m (450 kgf.cm, 32 ft.lbf) 

    2. Connect the knock sensor connector.
    13. Fig 6: Removing And Installing Knock Sensor
    G03096770Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  13. INSTALL INTAKE MANIFOLD 
    1. Install a new gasket onto the intake manifold.
    2. Install the intake manifold with the 3 bolts and 2 nuts. Using several steps, tighten the bolts and nuts uniformly in the sequence shown in Fig 7.

      Torque: 30 N.m (306 kgf.cm, 22 ft.lbf) 

      Fig 7: Installing Intake Manifold In Sequence
      G03096771Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Install the 3 wire harness clamps.
    4. Connect the union to connector tube hose.
    5. Connect the ventilation hose.
  14. INSTALL OIL LEVEL GAGE SUB-ASSY 
  15. CONNECT RADIATOR HOSE INLET 
  16. INSTALL CYLINDER HEAD COVER NO. 2 
    1. Install the cylinder head cover.
    2. First tighten nut A, then tighten nut B.

      Torque: 7.0 N.m (71 kgf.cm, 62 in.lbf) 

    Fig 8: Installing Cylinder Head Cover No. 2
    G03096772Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  17. INSTALL THROTTLE BODY ASSY 
    1. Install a new gasket onto the intake manifold.
    2. Install the throttle body and accelerator control cable bracket with the bolt and 2 nuts.

      Torque: 30 N.m (306 kgf.cm, 22 ft.lbf) 

    3. Install the wire harness clamp.
    4. Connect the throttle position sensor connector. (MANUAL TRANSAXLE)
    5. Connect the ISC valve connector.
  18. INSTALL TRANSMISSION OIL FILLER TUBE SUB-ASSY (AUTOMATIC TRANSAXLE) (See  REMOVAL & INSTALLATION AND DISASSEMBLY & REASSEMBLY  ) 
  19. INSTALL TRANSMISSION OIL LEVEL GAGE SUB-ASSY (AUTOMATIC TRANSAXLE) 
  20. INSTALL ACCELERATOR CONTROL CABLE ASSY (See  REMOVAL & INSTALLATION AND DISASSEMBLY & REASSEMBLY  ) 
  21. INSTALL AIR CLEANER ASSY (See  REMOVAL & INSTALLATION AND DISASSEMBLY & REASSEMBLY  ) 
  22. ADD ENGINE COOLANT (See  ENGINE COOLANT (1NZ-FE) (FROM APRIL, 2004)  ) 
  23. CHECK FOR ENGINE COOLANT LEAKS (See  ON-VEHICLE INSPECTION  ) 
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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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