2011 Scion xB AutomaticFACTORY OEM SERVICE PROCEDURE

Automatic Transaxle Unit: Disassembly: Disassembly

  1. REMOVE PARK/NEUTRAL POSITION SWITCH ASSEMBLY 
    1. Remove the nut and remove the control shaft lever.
      Fig 1: Removing/Installing Control Shaft Lever Components
      GTY162137Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Using a screwdriver, pry out the lock plate. Then remove the manual valve shaft nut and lock plate.
      Fig 2: Removing/Installing Manual Valve Shaft Nut With Lock Plate
      GTY162179Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Remove the 2 bolts and pull out the park/neutral position switch assembly from the manual valve lever shaft.
      Fig 3: Removing Breather Plug Hose From Breather Plug
      GTY157846Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  2. REMOVE BREATHER PLUG HOSE 
    1. Remove the breather plug hose from the breather plug.
  3. REMOVE OUTLET OIL COOLER TUBE UNION 
    1. Remove the outlet oil cooler tube union.
      Fig 4: Removing/Installing Outlet Oil Cooler Tube Union Components
      GTY158741Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Remove the O-ring from the outlet oil cooler tube union.
  4. REMOVE INLET OIL COOLER TUBE UNION 
    1. Remove the inlet oil cooler tube union.
      Fig 5: Removing/Installing Inlet Oil Cooler Tube Union Components
      GTY158742Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Remove the O-ring from the inlet oil cooler tube union.
  5. REMOVE SPEED SENSOR NT 
    1. Remove the bolt and remove the speed sensor NT.
      Fig 6: Removing/Installing Speed Sensor NC And Speed Sensor NT Components
      GTY164764Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Remove the O-ring from the speed sensor NT.
  6. REMOVE SPEED SENSOR NC 
    1. Remove the bolt and remove the speed sensor NC.
    2. Remove the O-ring from the speed sensor NC.
  7. REMOVE NO. 1 TRANSAXLE CASE PLUG 
    1. Remove the 4 No. 1 transaxle case plugs from the transaxle case.
      Fig 7: Identifying No. 1 Transaxle Case Plugs
      GTY158680Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Remove the 2 No. 1 transaxle case plugs from the transaxle housing.
      Fig 8: Identifying No. 1 Transaxle Housing Plug And O-Rings
      GTY158681Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Remove the 2 No. 1 transaxle case plugs from the transaxle rear cover.
      Fig 9: Identifying No. 1 Transaxle Rear Cover Plug
      GTY158682Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    4. Remove the 8 O-rings from the 8 No. 1 transaxle case plugs.
  8. FIX AUTOMATIC TRANSAXLE ASSEMBLY 
  9. REMOVE AUTOMATIC TRANSAXLE OIL PAN SUB-ASSEMBLY 
    1. Remove the 18 bolts and remove the automatic transaxle oil pan sub-assembly and oil pan gasket.
      Fig 10: Removing Automatic Transaxle Oil Pan Sub-Assembly
      GTY157767Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Remove the 2 oil cleaner magnets from the automatic transaxle oil pan sub-assembly.
      Fig 11: Removing/Installing Oil Cleaner Magnets
      GTY157679Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  10. INSPECT AUTOMATIC TRANSAXLE OIL PAN SUB-ASSEMBLY  See step  1
  11. REMOVE VALVE BODY OIL STRAINER ASSEMBLY 
    1. Remove the 3 bolts and remove the valve body oil strainer assembly.
      Fig 12: Locating Valve Body Oil Strainer Bolts
      GTY163516Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Remove the O-ring from the valve body oil strainer assembly
      Fig 13: Locating Valve Body Oil Strainer Assembly O-Ring
      GTY157769Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  12. REMOVE TRANSMISSION WIRE 
    1. Disconnect the 5 shift solenoid valve connectors.
      Fig 14: Removing/Installing Transmission Wire Components
      GTY158670Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Remove the bolt and lock plate and separate the ATF temperature sensor.
    3. Remove the bolt and transaxle solenoid wire from the transaxle.
      Fig 15: Removing Transaxle Solenoid Wire
      GTY157885Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    4. Remove the O-ring from the transaxle solenoid wire.
      Fig 16: Removing Transaxle Solenoid Wire O-Ring
      GTY157804Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  13. REMOVE TRANSMISSION VALVE BODY ASSEMBLY 
    1. Support the valve body assembly and remove the 17 bolts and the transmission valve body assembly.
      Fig 17: Identifying Valve Body Assembly Bolt Locations
      GTY310534Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  14. REMOVE NO. 1 GOVERNOR APPLY GASKET 
    1. Remove the governor apply gasket from the transaxle.
      Fig 18: Removing/Installing No. 1 Governor Apply Gasket
      GTY166716Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  15. REMOVE TRANSAXLE CASE 2ND BRAKE GASKET 
    1. Remove the 2nd brake gasket from the transaxle.
      Fig 19: Removing/Installing Transaxle Case 2nd Brake Gasket
      GTY159183Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  16. REMOVE BRAKE DRUM GASKET 
    1. Remove the brake drum gasket from the transaxle.
      Fig 20: Removing/Installing Brake Drum Gasket
      GTY166079Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  17. REMOVE CHECK BALL BODY 
    1. Remove the check ball body and spring from the transaxle.
      Fig 21: Removing/Installing Check Ball Body And Spring
      GTY165783Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  18. REMOVE C-3 ACCUMULATOR PISTON 
    1. Remove the compression spring from the C-3 accumulator piston.
      Fig 22: Removing/Installing Spring From C-3 Accumulator Piston
      GTY165222Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Apply compressed air (392 kPa, 4.0 kgf/cm2 , 57 psi) to the oil hole and remove the C-3 accumulator piston.
      Fig 23: Removing C-3 Accumulator Piston With Compressed Air
      GTY157890Courtesy 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.