LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Lexus >> 2004 >> LS 430 >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transmission (On-Vehicle Service) >> Transmission Wire >> Replacement
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Transmission Wire: Replacement

CAUTION: When working with FIPG material, perform the following:
  • Using a razor blade and gasket scraper, remove all the old FIPG material from the gasket surfaces.
  • Thoroughly clean all components to remove any loose material.
  • Clean both sealing surfaces with a non-residue solvent.
  • Apply FIPG in a continuous line width approximately 1 mm (0.04 in.) along the sealing surface.
  • Parts must be assembled within 10 minutes of application. Otherwise, the FIPG material must be removed and reapplied.
  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.

      Torque: 20 N.m (205 kgf.cm, 15 ft.lbf) 

  3. REMOVE AUTOMATIC TRANSMISSION OIL PAN SUB-ASSY 
    NOTE: Some fluid will remain in the oil pan.
    1. Remove the 20 bolts, oil pan and gasket.
      Fig 1: Removing Bolts
      G01028887Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Remove the 3 magnets from the oil pan.
      Fig 2: Removing Magnets From Oil Pan
      G01028888Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Examine particles in pan.
      1. 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 place wear

        Brass (non-magnetic) ... bushing wear

        Fig 3: Checking Particles In Pan
        G01028889Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  4. REMOVE VALVE BODY OIL STRAINER ASSY 
    1. Remove the 4 bolts and oil strainer.
      NOTE: Be careful as some fluid will come out of the oil strainer.
      Fig 4: Removing Bolts And Oil Strainer
      G01028890Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Remove the O-ring from the oil strainer.
      Fig 5: Removing O-Ring From Oil Strainer
      G01028891Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  5. DISCONNECT TRANSMISSION WIRE 
    1. Remove the 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.
      Fig 6: Removing Bolts And 2 Clamps
      G01028892Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  6. REMOVE TRANSMISSION WIRE 
    1. Disconnect the transmission wire connector.
    2. Remove the bolt and pull out the transmission wire.
      Fig 7: Removing Bolt And Pulling Out Transmission Wire
      G01028893Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  7. INSTALL TRANSMISSION WIRE 
    1. Coat an O-ring of the transmission wire connector with ATF.
    2. Install the transmission wire with the bolt.

      Torque: 5.4 N.m (55 kgf.cm, 48 in.lbf) 

    3. Connect the transmission wire connector.
      Fig 8: Connecting Transmission Wire Connector
      G01028894Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  8. CONNECT TRANSMISSION WIRE 
    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.

      Torque: 10 N.m (100 kgf.cm, 7 ft.lbf) 

    4. Install the ATF temperature sensor and lock plate with the bolt.

      Torque: 10 N.m (100 kgf.cm, 7 ft.lbf) 

      Fig 9: Installing Clamps With 2 Bolts
      G01028895Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  9. INSTALL VALVE BODY OIL STRAINER ASSY 
    1. Coat a new O-ring with ATF.
    2. Install the O-ring.
      Fig 10: Installing O-Ring
      G01028896Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Install the oil strainer with the 4 bolts.

      Torque: 10 N.m (100 kgf.cm, 7 ft.lbf) 

      Fig 11: Installing Oil Strainer With 4 Bolts
      G01028897Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  10. INSTALL AUTOMATIC TRANSMISSION OIL PAN SUB-ASSY 
    1. Install the 3 magnets in the oil pan.
      Fig 12: Installing Magnets In Oil Pan
      G01028898Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Using a new gasket, install the oil pan with the 20 bolts to the transmission case.

      Torque: 4.4 N.m (44 kgf.cm, 39 in.lbf) 

      Fig 13: Installing Oil Pan With Bolts To Transmission Case
      G01028899Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  11. CONNECT BATTERY NEGATIVE TERMINAL 
  12. ADD AUTOMATIC TRANSMISSION FLUID (SEE  AUTOMATIC TRANSMISSION FLUID  ) 

    Fluid type: ATF WS 

    Capacity: 4.3 liters (4.5 US qts, 3.8 Imp. qts) 

  13. RESET MEMORY (SEE  INITIALIZATION  ) 
  14. PERFORM INITIALIZATION (SEE  INITIALIZATION  )