2006 Lexus SC 430FACTORY OEM SERVICE PROCEDURE

Transmission Wire: Replacement

NOTE: When working with FIPG material, perform the following:
  • Using a razor blade and gasket scraper, remove all old FIPG material from the gasket surfaces.
  • Clean all components thoroughly to remove all foreign matter.
  • Clean both sealing surfaces with a non-residue solvent.
  • Apply FIPG material in a bead of approximately 1 mm (0.04 in.) on the sealing surface.
  • Reassemble parts within 10 minutes of applying FIPG material. Failing to do so will require the FIPG material to be removed and reapplied.
  1. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL 
    CAUTION: Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to prevent airbag and seat pretensioner activation.
  2. DRAIN AUTOMATIC TRANSMISSION FLUID 
    1. Remove the drain plug and gasket, and drain ATF.
    2. Install a new gasket and the drain plug.

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

  3. REMOVE TRANSMISSION OIL FILLER TUBE SUB-ASSY 
    1. Remove the oil level gauge.
    2. Remove the bolt and oil filler tube.
    3. Remove the O-ring from the oil filler tube.
  4. REMOVE AUTOMATIC TRANSMISSION OIL PAN SUB-ASSY 
    1. Remove the 19 bolts and oil pan.
      Fig 1: Removing Automatic Transmission Oil Pan With Bolts
      G02954559Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Insert SST between the transmission case and oil pan.

      Cut through the seal and remove the oil pan.

      SST 09032-00100

      NOTE:
      • Be careful not to damage the oil pan flange.
      • Some fluid will remain in the oil pan. Carefully remove the oil pan.
        Fig 2: Inserting SST Between Transmission Case & Oil Pan
        G02954560Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Examine the particles in the oil pan.
      1. Remove all the magnets and use them to collect steel particles. Carefully look at the foreign matter and particles in the pan and on the magnets to determine the type of wear you will find in the transmission.

        Steel (magnetic): bearing, gear and clutch plate wear

        Brass (non-magnetic): bushing wear

        Fig 3: Collecting Steel Particles
        G02954561Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  5. REMOVE VALVE BODY OIL STRAINER ASSY 
    1. Remove the 4 bolts and oil strainer.
      NOTE: Be careful as some fluid will leak out of the oil strainer.
Factory Service Tools

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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.