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Home › Lexus › 2004 › LS 430 › Repair and Diagnosis › Transmission › Automatic Trans › Servicing › Removal & Installation › Transmission Wire › Remove & Install

Remove & Install

  1. Disconnect battery negative terminal.
  2. Drain automatic transmission fluid:
    1. Remove the drain plug, gasket and drain the ATF.
    2. Install a new gasket and the drain plug. Tighten drain plug to specification. See TORQUE SPECIFICATIONS .
    3. NOTE: Some fluid will remain in oil pan.
  3. Remove automatic transmission oil pan sub-assy:
    1. Remove the 20 bolts, oil pan and gasket. See Fig 1.
    2. Remove the 3 magnets from the oil pan. See Fig 2.
      3. NOTE: Collect any steel chips with the removed magnets. Carefully look at 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
    3. Examine particles in pan.
    4. NOTE: Be careful as some fluid will come out of the oil strainer.
  4. Remove valve body oil strainer assy:
    1. Remove the 4 bolts and oil strainer. See Fig 3.
    2. Remove the "O" ring from the oil strainer. See Fig 4.
  5. Disconnect transmission wire. See Fig 5:
    1. remove bolt and lock plate, and separate the ATF temperature sensor.
    2. Remove the 2 bolts and 2 clamps.
    3. Separate the 9 connectors from the solenoid valves.
  6. Remove transmission wire: See Fig 6.
    1. Disconnect the transmission wire connector.
    2. Remove the bolt and pull out the transmission wire.
  7. Install transmission wire. See Fig 6:
    1. Coat an "O" ring of the transmission wire connector with ATF.
    2. Install the transmission wire with the bolt. Tighten bolt to specification. See TORQUE SPECIFICATIONS .
    3. Connect the transmission wire connector.
  8. Connect transmission wire. See Fig 5:
    1. Coat a new "O" ring of the ATF temperature sensor with ATF.
    2. Connect the 9 connectors to the solenoid valves.
    3. Install the 2 clamps with the 2 bolts. Tighten bolts to specification. See TORQUE SPECIFICATIONS .
    4. Install the ATF temperature sensor and lock plate with the bolt. Tighten bolt to specification. See TORQUE SPECIFICATIONS .
  9. Install valve body oil strainer assy. See Fig 3:
    1. Coat a new "O" ring with ATF.
    2. Install the "O" ring.
    3. Install the oil strainer with the 4 bolts. Tighten bolts to specification. See TORQUE SPECIFICATIONS .
  10. Install automatic transmission oil pan sub-assy:
    1. Install the 3 magnets in the oil pan. See Fig 2.
    2. Using a new gasket, install the oil pan with the 20 bolts to the transmission case. Tighten bolts to specification. See TORQUE SPECIFICATIONS .
  11. Connect battery negative terminal.
    12. NOTE: Fluid type: ATF WS
  12. Add automatic transmission fluid. See DRAINING & REFILLING  under LUBRICATION.
  13. Reset memory. See COMPUTER RELEARN PROCEDURES article in GENERAL INFORMATION.
  14. Perform initialization. See COMPUTER RELEARN PROCEDURES article in GENERAL INFORMATION.
Fig 1: Removing & Installing Oil Pan
G00330411Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 2: Locating Oil Pan Magnets
G00330425Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 3: Removing & Installing Oil Strainer
G00218278Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 4: Oil Strainer "O" Ring
G00330428Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 5: Locating Solenoid Connectors, Clamps & ATF Temperature Sensor
G00330426Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 6: Removing & Installing Solenoid Connector Wire
G00330427Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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