AUTOMATIC TRANSAXLE FLUID ADJUSTMENT

PROCEDURE


  1. PRECAUTIONS AND WORK DESCRIPTION


    1. The U660E automatic transaxle assembly does not have an oil filler tube and oil level gauge. When adding automatic transaxle fluid, add automatic transaxle fluid through the refill hole on the rear transaxle cover sub-assembly. The automatic transaxle fluid level can be adjusted by draining excess automatic transaxle fluid (allowing excess automatic transaxle fluid to overflow) through the No. 1 transmission oil filler tube of the automatic transaxle oil pan sub-assembly.

      Tech Tips

      "Overflow" indicates the condition under which automatic transaxle fluid comes out of the overflow plug hole.

    2. Before adjusting the automatic transaxle fluid level, add the specified amount of automatic transaxle fluid when the engine is cold and warm up the engine to circulate the automatic transaxle fluid in the automatic transaxle assembly. Ensure that the automatic transaxle fluid temperature is as specified and the engine is idling.

      B006PI3E03

    3. The U660E automatic transaxle assembly requires Toyota Genuine ATF WS.

    4. The adjustment should be performed according to the procedures and notes.

  2. WORK FLOW


    1. The adjustment should be performed according to the procedure referenced in the work flow below.

      B006OMDE11

  3. PREPARATION WORK


    1. Lift the vehicle.

      Note

      Set the vehicle on a lift so that the vehicle is kept level when it is lifted up (make sure that the tilt angle from the front to rear of the vehicle is within +/- 1°).

    2. Remove the rear engine under cover LH.

      Click here

  4. PERFORM INITIAL FILLING

    Note

    If the automatic transaxle assembly is hot (automatic transaxle fluid temperature is high), wait until the automatic transaxle fluid temperature becomes the same as the ambient temperature before starting the following procedure. (Recommended automatic transaxle fluid temperature: around 20°C [68°F])


    1. B006N8L

      Remove the refill plug and gasket from the rear transaxle cover sub-assembly.

      Note

      After performing any of the following operations, it is not necessary to perform the initial filling procedure. Proceed to the Add Specified Amount of Fluid procedure.

      Operations that do not require initial filling

      • Disconnection of the oil cooler tube or oil cooler hose

      • Repair of automatic transaxle fluid leak due to a loose case plug, or a faulty plug gasket or O-ring
    2. B006OGV

      Using a 6 mm hexagon socket wrench, remove the overflow plug and gasket from the automatic transaxle oil pan sub-assembly.

      Note


      • If automatic transaxle fluid comes out after removing the overflow plug, wait until the automatic transaxle fluid flow slows and only drips come out.

      • If automatic transaxle fluid comes out, it is not necessary to perform the initial filling procedure. After checking the tightening torque of the No. 1 transmission oil filler tube, temporarily install the overflow plug.

    3. B006O6DC01
      *1 No. 1 Transmission Oil Filler Tube
      *a 6 mm Hexagon Socket Wrench

      Using a 6 mm hexagon socket wrench, check that the No. 1 transmission oil filler tube is tightened to the specified torque.

      Torque:
      1.7 N*m  { 17 kgf*cm, 15 in.*lbf }

      Note

      If the No. 1 transmission oil filler tube is not tightened to the specified torque, the amount of automatic transaxle fluid cannot be precisely adjusted.

      Tech Tips

      To check the torque of the No. 1 transmission oil filler tube, insert the 6 mm hexagon socket wrench into the overflow plug hole.

    4. Perform initial filling.


      1. B006MTD

        Fill the automatic transaxle assembly through the refill hole until automatic transaxle fluid begins to come out of the overflow plug hole.

        Note

        Use Toyota Genuine ATF WS.

    5. B006P7G

      Wait until the automatic transaxle fluid flow slows and only drips come out.

    6. B006OGV

      Temporarily install the gasket and the overflow plug to the automatic transaxle oil pan sub-assembly.

      Tech Tips

      Reuse the old gasket as the overflow plug will be removed again to adjust the automatic transaxle fluid level.

    7. B006N8L

      Temporarily install the gasket and refill plug to the automatic transaxle assembly.

      Tech Tips

      Reuse the old gasket as the refill plug will be removed again to adjust the automatic transaxle fluid level.

  5. ADD SPECIFIED AMOUNT OF FLUID


    1. B006N8L

      Remove the refill plug and gasket from the automatic transaxle assembly.

    2. B006MMO

      Fill the automatic transaxle assembly with the correct amount of automatic transaxle fluid as listed in the table below.

      Note

      Use Toyota Genuine ATF WS.

      Tech Tips

      The refill amount differs depending on the operation that was performed.

      Reference Capacity
      Performed Repair Fill Amount
      Automatic transaxle assembly replacement (with a new torque converter assembly) 5.3 liters (5.6 US qts, 4.7 Imp. qts)
      Automatic transaxle assembly replacement (when reusing the torque converter assembly) 3.4 liters (3.6 US qts, 3.0 Imp. qts)
      Removal and installation of the torque converter assembly 4.8 liters (5.1 US qts, 4.2 Imp. qts)
      Removal and installation of the transmission valve body assembly 3.2 liters (3.4 US qts, 2.8 Imp. qts)
      Removal and installation of the automatic transaxle oil pan sub-assembly 2.8 liters (3.0 US qts, 2.5 Imp. qts)
      Removal and installation of a front drive shaft assembly 2.8 liters (3.0 US qts, 2.5 Imp. qts)
      Removal and installation of the front drive shaft assembly LH or front drive shaft assembly RH 2.8 liters (3.0 US qts, 2.5 Imp. qts)
      Disconnection of an oil cooler tube or oil cooler hose 0.5 liters (0.5 US qts, 0.4 Imp. qts)
      Repair of automatic transaxle fluid leak due to a loose case plug, or a faulty plug gasket or O-ring 0.5 liters (0.5 US qts, 0.4 Imp. qts)
    3. B006N8L

      Temporarily install the gasket and refill plug to avoid automatic transaxle fluid spillage.

      Tech Tips

      Reuse the old gasket as the refill plug will be removed again to adjust the automatic transaxle fluid level.

    4. Lower the vehicle.

  6. ADJUST FLUID TEMPERATURE (when Using the GTS)

    Tech Tips

    The actual automatic transaxle fluid temperature can be checked on the Data List using the GTS.


    1. Connect the GTS to the DLC3 with the engine switch off.

    2. Turn the engine switch on (IG) and turn the GTS on.

      Note

      To reduce load, make sure that all electrical systems, such as the air conditioning, lighting system, electric fans and audio system are off.

    3. Enter the following menus: Powertrain / ECT / Active Test / Connect the TC and TE1.


      Powertrain > ECT > Active Test
      Active Test Display
      Connect the TC and TE1
      Data List Display
      A/T Oil Temperature 1

    4. Select the Active Test item: Connect the TC and TE1 / ON.

    5. Select the Data List menu: A/T Oil Temperature 1.

    6. Check the automatic transaxle fluid temperature.

      Note


      • If the automatic transaxle fluid temperature is below 45°C (113°F), proceed to the next step. (Recommended automatic transaxle fluid temperature: 40°C (104°F) or less)

      • If the automatic transaxle fluid temperature is 45°C (113°F) or more, turn the ignition switch to off and wait until the automatic transaxle fluid temperature drops below 45°C (113°F).

    7. Depress and hold the brake pedal.

    8. Start the engine.

    9. Slowly move the shift lever from P to D, and then back to P.

      Tech Tips

      Slowly move the shift lever to circulate the automatic transaxle fluid through each part of the automatic transaxle assembly.

    10. B006PY3

      While observing the D shift indicator on the combination meter, move the shift lever back and forth between N and D at an interval of less than 1.5 seconds for 6 seconds or more.

      Note

      Do not pause for 1.5 seconds or more.

      Tech Tips

      Performing this operation will cause the vehicle to enter automatic transaxle fluid temperature detection mode.

    11. Check that the D shift indicator comes on for 2 seconds.

      Tech Tips


      • When automatic transaxle fluid temperature detection mode is activated, the D shift indicator on the combination meter comes on for 2 seconds.

      • If the D shift indicator does not come on for 2 seconds, return to the first step and perform the procedure again.

    12. Move the shift lever from N to P.

    13. Release the brake pedal.

    14. Select the Active Test item: Connect the TC and TE1 / OFF.

      Note

      Be sure that terminals TC and TE1 are not connected. If the terminals are connected, the automatic transaxle fluid level cannot be precisely adjusted due to fluctuations in engine speed.

      Tech Tips


      • Disconnecting terminals TC and TE1 activates engine idle speed control mode.

      • In engine idle speed control mode, engine idle speed control starts when the automatic transaxle fluid temperature is 40°C (104°F) or more and the engine speed is maintained at approximately 800 rpm.

      • Even after terminals TC and TE1 are disconnected, automatic transaxle fluid temperature detection mode is active until the engine switch is turned off.

    15. B006NKAC01
      *a OFF
      *b ON
      *c Blinks

      Warm up the engine with the engine idling until the automatic transaxle fluid temperature reaches the automatic transaxle fluid level adjustment temperature (40 to 45°C (104 to 113°F)).

      Below Automatic Transaxle Fluid Level Adjustment Temperature Automatic Transaxle Fluid Level Adjustment Temperature Above Automatic Transaxle Fluid Level Adjustment Temperature

      40°C or less

      (104°F or less)

      40 to 45°C

      (104 to 113°F)

      45°C or more

      (113°F or more)

      Note


      • If the automatic transaxle fluid temperature is within the automatic transaxle fluid level adjustment temperature range, immediately proceed to the Adjust Fluid Level procedure.

      • If the automatic transaxle fluid temperature is 45°C (113°F) or more, stop the engine and wait until the automatic transaxle fluid temperature drops to 40°C (104°F) or less. Then perform the Adjust Fluid Temperature procedure again from the beginning.

      Tech Tips

      In automatic transaxle fluid temperature detection mode, the D shift indicator comes on, goes off, or blinks depending on the automatic transaxle fluid temperature.

      D Shift Indicator

      Below Automatic Transaxle Fluid Level Adjustment Temperature

      (40°C or less)

      (104°F or less)

      Automatic Transaxle Fluid Level Adjustment Temperature

      (40 to 45°C)

      (104 to 113°F)

      Above Automatic Transaxle Fluid Level Adjustment Temperature

      (45°C or more)

      (113°F or more)
      OFF ON Blinks

  7. ADJUST FLUID TEMPERATURE (when Not Using the GTS)


    1. B006PYRC33
      *1 DLC3

      Using SST, connect terminals 13 (TC) and 4 (CG) of the DLC3 with the engine switch off.

      SST
      09843-18040

    2. Depress and hold the brake pedal.

    3. Start the engine.

      Note

      To reduce load, make sure that all electrical systems, such as the air conditioning, lighting system, electric fans and audio system, are off.

      Tech Tips

      The indicator lights on the combination meter blink to indicate the DTC output when terminals TC and CG are connected.

    4. Slowly move the shift lever from P to D, and then back to P.

      Tech Tips

      Slowly move the shift lever to circulate the automatic transaxle fluid through each part of the automatic transaxle assembly.

    5. B006PY3

      While observing the D shift indicator on the combination meter, move the shift lever back and forth between N and D at an interval of less than 1.5 seconds for 6 seconds or more.

      Note

      Do not pause for 1.5 seconds or more.

      Tech Tips

      Performing this operation will cause the vehicle to enter automatic transaxle fluid temperature detection mode.

    6. Check that the D shift indicator comes on for 2 seconds.

      Tech Tips


      • When automatic transaxle fluid temperature detection mode is activated, the D shift indicator on the combination meter comes on for 2 seconds.

      • If the D shift indicator does not come on for 2 seconds, return to the first step and perform the procedure again.

    7. Move the shift lever from N to P.

    8. Release the brake pedal.

    9. B006PYRC33
      *1 DLC3

      Remove SST from terminals 13 (TC) and 4 (CG).

      SST
      09843-18040

      Note

      Be sure that terminals TC and CG are not connected. If the terminals are connected, the automatic transaxle fluid level cannot be precisely adjusted due to fluctuations in engine speed.

      Tech Tips


      • Disconnecting terminals TC and CG activates engine idle speed control mode.

      • In engine idle speed control mode, engine idle speed control starts when the automatic transaxle fluid temperature is 40°C (104°F) or more and the engine speed is maintained at approximately 800 rpm.

      • Even after terminals TC and CG are disconnected, automatic transaxle fluid temperature detection mode is active until the engine switch is turned off.

    10. Allow the engine to idle until the D shift indicator comes on again.

      D Shift Indicator

      Below Automatic Transaxle Fluid Level Adjustment Temperature

      (40°C or less)

      (104°F or less)

      Automatic Transaxle Fluid Level Adjustment Temperature

      (40 to 45°C)

      (104 to 113°F)

      Above Automatic Transaxle Fluid Level Adjustment Temperature

      (45°C or more)

      (113°F or more)
      OFF ON Blinks

      Note


      • If the D shift indicator is on, immediately proceed to the Adjust Fluid Level procedure.

      • If the D shift indicator blinks, stop the engine and wait until the automatic transaxle fluid temperature drops to 40°C (104°F) or less (the indicator goes off). Then perform the Adjust Fluid Temperature procedure again from the beginning.

      Tech Tips


      • In automatic transaxle fluid temperature detection mode, the D shift indicator comes on, goes off, or blinks depending on the automatic transaxle fluid temperature.

      • The automatic transaxle fluid filling procedure should be performed when the D shift indicator is on (the automatic transaxle fluid temperature is within the automatic transaxle fluid level adjustment temperature range).

  8. ADJUST FLUID LEVEL

    CAUTION:

    Use caution while the engine is idling and the radiator fans are operating.


    1. Lift the vehicle.

      Note

      Set the vehicle on a lift so that the vehicle is kept level when it is lifted up (make sure the tilt angle from the front to rear of the vehicle is within +/- 1°).

    2. B006LP4

      Using a 6 mm hexagon socket wrench, remove the overflow plug and gasket from the automatic transaxle oil pan sub-assembly.

      Note

      Be careful as the automatic transaxle fluid coming out of the overflow plug hole is hot.

    3. Check the amount of automatic transaxle fluid that comes out of the overflow plug hole.


      • If the amount of automatic transaxle fluid that comes out of the overflow plug hole is large, proceed to step [*1].

      • If no automatic transaxle fluid comes out of the overflow plug hole, proceed to step [*2].

      Note

      If only a small amount of automatic transaxle fluid (approximately 1 cc) comes out of the overflow plug hole, then only automatic transaxle fluid remaining in the No. 1 transmission oil filler tube has come out. This condition is not considered as overflow, so it is necessary to add automatic transaxle fluid.


      1. B006NDF

        If the amount of automatic transaxle fluid that comes out of the overflow plug hole is large, wait until the automatic transaxle fluid flow slows and only drips come out. [*1]

        Tech Tips

        The automatic transaxle fluid flow will not stop completely because the automatic transaxle fluid continues to expand as its temperature increases.

      2. B006QXM

        If no automatic transaxle fluid comes out of the overflow plug hole, remove the refill plug and gasket. Then add automatic transaxle fluid through the refill hole until automatic transaxle fluid comes out of the overflow plug hole. Wait until the automatic transaxle fluid flow slows and only drips come out. [*2]

        Note

        Use Toyota Genuine ATF WS.

      3. B006NDF

        Wait until the automatic transaxle fluid flow slows and only drips come out.

        Tech Tips

        The automatic transaxle fluid flow will not stop completely because the automatic transaxle fluid continues to expand as its temperature increases.

    4. B006LP4

      Using a 6 mm hexagon socket wrench, install a new gasket and the overflow plug to the automatic transaxle oil pan sub-assembly.

      Torque:
      40 N*m  { 408 kgf*cm, 30 ft.*lbf }
    5. B006N8L

      Install a new gasket and the refill plug to the rear transaxle cover sub-assembly.

      Torque:
      49 N*m  { 500 kgf*cm, 36 ft.*lbf }

    6. Lower the vehicle.

    7. Turn the engine switch off.

    8. Remove the GTS from the DLC3 (for when Using the GTS).

  9. REBUILD WORK


    1. Lift the vehicle.

    2. Clean each part.

    3. Check for automatic transaxle fluid leaks.

    4. Install the rear engine under cover LH.

      Click here

    5. Lower the vehicle.

    6. Operation is complete.