AUTOMATIC TRANSAXLE FLUID ADJUSTMENT

CAUTION / NOTICE / HINT

Note

Precautions and work description


  • The U761E automatic transaxle assembly does not have an oil filler tube and oil dipstick. 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.

  • 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.

  • The U761E automatic transaxle assembly requires Toyota Genuine ATF WS.

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

Tech Tips

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

A01W3EME28

Tech Tips

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

A01W3MGE02

PROCEDURE


  1. PREPARATION WORK

    Note

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


    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 front wheel opening extension pad LH Click here.

    3. Remove the engine under cover LH Click here.

    4. Remove the front fender apron seal LH Click here.

  2. PERFORM INITIAL FILLING


    1. A01W267

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

      Note

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

      Operations that do not require initial filling

      • Disconnection of an oil cooler hose


      • Repair of an automatic transaxle fluid leak due to a loose case plug, or a faulty plug gasket or an O-ring
    2. A01W558

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

      Note


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

      • If ATF 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. A01W08LE03
      Text in Illustration
      *1 No. 1 Transmission Oil Filler Tube
      *a 6 mm Hexagon Socket Wrench
      *b Overflow Plug Hole

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

      Torque:
      0.8 N*m  { 8 kgf*cm, 7 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. A01W3XY

        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. A01W5JG

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

    6. A01W558

      Using a 6 mm hexagon socket wrench, temporarily install the gasket and 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.

  3. ADD SPECIFIED AMOUNT OF FLUID


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

      Note

      The volume of automatic transaxle fluid to be added depends on the operation that was performed.

      Reference Capacity
      Related Procedure Fill Volume
      Automatic transaxle assembly replacement (with a new torque converter assembly) 5.1 liters (5.4 US qts, 4.5 Imp. qts)
      Automatic transaxle assembly replacement (when reusing the torque converter assembly) 3.5 liters (3.7 US qts, 3.1 Imp. qts)
      Removal and installation of the torque converter assembly 3.4 liters (3.6 US qts, 3.0 Imp. qts)
      Removal and installation of the transmission valve body assembly 3.7 liters (3.9 US qts, 3.3 Imp. qts)
      Removal and installation of the automatic transaxle oil pan sub-assembly 3.2 liters (3.4 US qts, 2.8 Imp. qts)
      Removal and installation of a front drive shaft assembly 3.2 liters (3.4 US qts, 2.8 Imp. qts)
      Disconnection of an oil cooler hose 0.5 liters (0.5 US qts, 0.4 Imp. qts)
      Repair of an automatic transaxle fluid leak due to a loose case plug, or a faulty plug gasket or an O-ring 0.5 liters (0.5 US qts, 0.4 Imp. qts)
    2. A01W267

      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.

    3. Lower the vehicle.

  4. AIR BLEED OIL PUMP WITH MOTOR ASSEMBLY

    Click here

  5. ADJUST FLUID TEMPERATURE (when Using the GTS)

    Tech Tips

    The actual ATF 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 fan and audio system, are off.

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

    4. Select the Data List item: A/T Oil Temperature 1

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

    6. Check the ATF temperature.

      Note


      • If the automatic transaxle fluid temperature is below 45°C (113°F), proceed to the next step. Recommended ATF temperature: 35°C (95°F) or less

      • If the automatic transaxle fluid temperature is 45°C (113°F) or more, turn the engine switch off and wait until the 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, then back to P (keep the shift lever in each position for approximately 3 seconds).

      Tech Tips

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

    10. A01W08I

      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 more than 1.5 seconds.

      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

      Make sure that the Active Test item Connect the TC and TE1 is OFF. If it is ON, the automatic transaxle fluid level cannot be precisely adjusted due to fluctuations in the 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 becomes 35°C (95°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 will be active until the engine switch is turned off.

    15. A01W0BKE02
      Text in Illustration
      *a Off
      *b On
      *c Blinking

      Warm up the engine with the engine idling until the automatic transaxle fluid temperature reaches the automatic transaxle fluid level adjustment temperature (35 to 45°C (95 to 113°F)).

      Below Automatic Transaxle Fluid Level Adjustment Temperature Automatic Transaxle Fluid Level Adjustment Temperature Above Automatic Transaxle Fluid Level Adjustment Temperature
      35°C or less (95°F or less) 35 to 45°C (95 to 113°F) 45°C or more (113°F or more)
      D Shift Indicator Off D Shift Indicator On D Shift Indicator Blinking

      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 35°C (95°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.

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


    1. A01W0PDE27
      Text in Illustration
      *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 fan and audio system, are off.

      Tech Tips

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

    4. Slowly move the shift lever from P to D, then back to P (keep the shift lever in each position for approximately 3 seconds).

      Tech Tips

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

    5. A01W08I

      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 more than 1.5 seconds.

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

      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 the 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 becomes 35°C (95°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 will be active until the engine switch is turned off.

    10. A01W0BKE02
      Text in Illustration
      *a Off
      *b On
      *c Blinking

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

      Below Automatic Transaxle Fluid Level Adjustment Temperature Automatic Transaxle Fluid Level Adjustment Temperature Above Automatic Transaxle Fluid Level Adjustment Temperature
      35°C or less (95°F or less) 35 to 45°C (95 to 113°F) 45°C or more (113°F or more)
      D Shift Indicator Off D Shift Indicator On D Shift Indicator Blinking

      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 35°C (95°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.

      • 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).

  7. ADJUST FLUID LEVEL

    CAUTION:

    Use caution while the engine is idling and the radiator fan is 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. A01W558

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

      CAUTION:

      Be careful as the automatic transaxle fluid coming out of the overflow plug hole will be 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 the 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.

    4. If the amount of fluid that comes out of the overflow plug hole is large. [*1]


      1. A01W42G

        Wait until the 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.

    5. If no automatic transaxle fluid comes out of the overflow plug hole. [*2]


      1. A01W267

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

      2. A01W5IU

        Then add automatic transaxle fluid through the refill hole until automatic transaxle fluid comes out of the over flow plug hole.

        Note

        Use Toyota Genuine ATF WS.

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

    6. A01W558

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

      Torque:
      40 N*m  { 408 kgf*cm, 30 ft.*lbf }
    7. A01W267

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

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

    8. Lower the vehicle.

    9. Turn the engine switch off.

      Tech Tips

      Turning the engine switch off exits automatic transaxle fluid temperature detection mode.

    10. Disconnect the GTS from the DLC3 (when using the GTS).

  8. REBUILD WORK


    1. Lift the vehicle.

    2. Clean each part.

    3. Check for automatic transaxle fluid leaks.

    4. Install the front fender apron seal LH Click here.

    5. Install the engine under cover LH Click here.

    6. Install the front wheel opening extension pad LH Click here.

    7. Lower the vehicle.