2011 Lexus IS FFACTORY OEM SERVICE PROCEDURE

Automatic Transmission Unit: Disassembly: Disassembly

  1. REMOVE HARNESS BRACKET 
    1. Remove the 2 bolts and harness brackets.
      Fig 1: Identifying Harness Brackets Bolts
      GTY107556Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  2. REMOVE TRANSMISSION CONTROL SHAFT LEVER RH 
    1. Remove the nut, spring washer and transmission control shaft lever RH.
      Fig 2: Identifying Transmission Control Shaft Lever Nut
      GTY101764Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  3. REMOVE PARK/NEUTRAL POSITION SWITCH ASSEMBLY 
    1. Using a screwdriver, bend the tabs of the lock washer.
      Fig 3: Identifying Nut And Lock Washer
      GTY102760Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Remove the nut and lock washer.
    3. Remove the bolt and park/neutral position switch assembly.
  4. REMOVE OIL COOLER TUBE UNION 
    1. Remove the 2 oil cooler tube unions.
      Fig 4: Removing Oil Cooler Tube Unions
      GTY107555Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Remove the 2 O-rings from the 2 oil cooler tube unions.
  5. REMOVE AUTOMATIC TRANSMISSION BREATHER TUBE 
    1. Remove the bolt and automatic transmission breather tube.
      Fig 5: Identifying Automatic Transmission Breather Tube With Bolt
      GTY108807Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Remove the O-ring from the automatic transmission breather tube.
  6. REMOVE AUTOMATIC TRANSMISSION FLANGE YOKE ASSEMBLY 
    1. Using SST and a hammer, loosen the staked part of the nut.
      Fig 6: Loosening Staked Part Of Nut
      GTY100651Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      • SST: 09930-00010 
    2. Using SST and a 30 mm socket wrench, remove the nut.
      Fig 7: Removing Nut
      GTY107321Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      • SST: 09330-00021 
      • SST: 09950-30012 
        • 09955-03040
    3. Remove SST.
    4. Tap the flange yoke with a plastic-faced hammer to remove it.
    5. Remove the 2 rear No. 1 output shaft bearing spacers and rear cover sleeve.
    6. Using a screwdriver, pry out the oil seal from the flange yoke.
      Fig 8: Identifying Oil Seal Of Flange Yoke
      GTY107322Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  7. REMOVE AUTOMATIC TRANSMISSION OIL PAN SUB-ASSEMBLY 
    NOTE:

    Do not turn the transmission over as this will contaminate the valve body with foreign matter located at the bottom of the pan.

    1. Remove the overflow plug and gasket.
    2. Remove the drain plug and gasket.
    3. Remove the 9 bolts, oil pan and gasket.
      Fig 9: Identifying Oil Pan & Bolts
      GTY101571Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    4. Examine the particles in the pan.
      Fig 10: Checking Chips And Particles In Pan
      GTY100313Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Remove the magnets from the oil pan. Use the removed magnets to collect any steel chips. Look carefully at the chips and particles in the pan and on the magnet to anticipate the type of wear which might be found in the transmission.

        Steel (magnetic): bearing, gear and plate wear

        Brass (non-magnetic): bush wear

  8. REMOVE VALVE BODY OIL STRAINER ASSEMBLY 
    1. Remove the 4 bolts and valve body oil strainer from the valve body.
      Fig 11: Identifying Oil Strainer & Bolts
      GTY103775Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Remove the O-ring from the valve body oil strainer.
      Fig 12: Identifying O-Ring And Oil Strainer
      GTY107323Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  9. REMOVE TRANSMISSION VALVE BODY ASSEMBLY 
    1. Remove the bolt, lock plate and ATF temperature sensor.
      Fig 13: Identifying Solenoid Valves Connectors, Sensors, Valves & Spring
      GTY101980Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Remove the O-ring from the ATF temperature sensor.
    3. Disconnect the oil pressure switch connector.
    4. Disconnect the 9 connectors from the solenoid valves.
    5. Remove the bolt, detent spring cover and detent spring.
      Fig 14: Identifying Detent Spring And Bolt
      GTY102169Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    6. Remove the 17 bolts.
      Fig 15: Identifying Valve Body & Bolts
      GTY107325Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    7. Remove the valve body.
    8. Disconnect the manual valve connecting rod from the manual valve lever sub-assembly.
      Fig 16: Identifying Connecting Rod And Manual Valve Lever
      GTY108985Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  10. REMOVE CHECK BALL BODY 
    1. Remove the check ball body and spring.
      Fig 17: Identifying Check Ball Body And Spring
      GTY102905Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  11. REMOVE TRANSMISSION WIRE 
    1. Disconnect the 3 connectors from the 3 speed sensors.
      Fig 18: Identifying Speed Sensor Connectors
      GTY103011Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Remove the bolt and pull out the transmission wire.
      Fig 19: Identifying Transmission Wire Bolt
      GTY107326Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Remove the O-ring from the transmission wire connector.
  12. REMOVE SPEED SENSOR 
    1. Remove the 2 bolts and 2 speed sensors NC3 and SP2.
      Fig 20: Identifying Speed Sensor Bolts
      GTY101926Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Using a T30 "TORX" wrench, remove the bolt and speed sensor NT.
    3. Remove the O-ring from the speed sensor NT.
  13. REMOVE AUTOMATIC TRANSMISSION CASE PLUG 
    1. Remove the plug and O-ring.
      Fig 21: Identifying Automatic Transmission Case Plug
      GTY107328Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  14. REMOVE PARKING LOCK PAWL BRACKET 
    1. Remove the 3 bolts and parking lock pawl bracket.
      Fig 22: Identifying Parking Lock Pawl Bracket Bolts
      GTY100158Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  15. REMOVE PARKING LOCK ROD SUB-ASSEMBLY 
    1. Disconnect the parking lock rod from the manual valve lever.
      Fig 23: Disconnecting Parking Lock Rod
      GTY103452Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  16. REMOVE PARKING LOCK PAWL SHAFT 
    1. Pull out the parking lock pawl shaft from the front side, then remove the lock pawl and spring.
      Fig 24: Identifying Parking Lock Pawl Shaft
      GTY107329Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Remove the E-ring from the shaft.
  17. REMOVE MANUAL VALVE LEVER SUB-ASSEMBLY 
    1. Using a screwdriver and hammer, cut off the spacer and remove it from the shaft.
      Fig 25: Cutting Off Spacer
      GTY107330Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Using a pin punch and hammer, tap out the spring pin.
      Fig 26: Tapping Spring Pin
      GTY103736Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      HINT: 

      Slowly tap out the spring pin so that it will not fall into the transmission case.

    3. Pull the manual valve lever shaft out through the case, and remove the manual valve lever sub-assembly.
  18. REMOVE MANUAL VALVE LEVER SHAFT OIL SEAL 
    1. Using a screwdriver, pry out the oil seal.
      Fig 27: Prying Out Oil Seal
      GTY100154Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  19. REMOVE OIL PUMP ASSEMBLY 
    1. Remove the 11 bolts from the transmission case.
      Fig 28: Identifying Transmission Case Bolts
      GTY107331Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Pull out the oil pump.
      Fig 29: Identifying Oil Pump
      GTY100155Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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