Lexus IS250 · Service Manual TRANSMISSION

REMOVAL

Removal / installation


1. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL

2. DRAIN AUTOMATIC TRANSMISSION FLUID

  1. Remove the drain plug and gasket, and drain the ATF.

  1. Install a new gasket and the drain plug.

    Torque:
    20 N*m{ 204 kgf*cm , 15 ft.*lbf }


3. REMOVE NO. 1 EXHAUST PIPE SUPPORT BRACKET SUB-ASSEMBLY

  1. C108503E02
    Remove the 2 bolts and No. 1 exhaust pipe support bracket sub-assembly from the automatic transmission assembly.


4. REMOVE AUTOMATIC TRANSMISSION OIL PAN SUB-ASSEMBLY

NOTICE:
Some fluid will remain in the oil pan.

  1. C109360
    Remove the 20 bolts, oil pan, and gasket.

  1. C111035E03
    Remove the 3 magnets from the oil pan.

  1. Examine particles in the pan.

    1. Collect any steel chips with the removed magnets.
      Carefully look for the foreign objects and particles in the pan and on the magnets to guess at the type of wear which might be found in the transmission.
      Steel (magnetic)... bearing, gear, and clutch plate wear.
      Brass (non-magnetic)... bushing wear


5. REMOVE VALVE BODY OIL STRAINER ASSEMBLY

  1. C106929
    Remove the 4 bolts and oil strainer.

    NOTICE:
    Be careful as some fluid will come out of the oil strainer.

  1. C108414E01
    Remove the O-ring from the oil strainer.


6. DISCONNECT TRANSMISSION WIRE

  1. C122839
    Remove the bolt and separate the ATF temperature sensor.

  1. C122841
    Remove the 2 bolts and disconnect the 2 clamps.

  1. C122840
    Disconnect the 9 connectors from the solenoid valves.


7. REMOVE TRANSMISSION VALVE BODY ASSEMBLY

  1. C106932
    Remove the 19 bolts and valve body.

  1. C109330E03
    Separate the lever pin from the manual valve.

  1. C108494E02
    Remove the check ball body and spring.

    NOTICE:
    Do not drop the check ball body and spring.

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