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Home >> Lexus >> 2019 >> NX 300 Base, AWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 6 (Automatic Transmission (U661E) - Service Information (1 Of 2)) >> Automatic Transaxle Fluid >> Adjustment [07/2020 - ] >> Procedure

Adjustment [07/2020 - ]: Procedure

WARNING: This page is about a different variant/trim than selected.
  1. PRECAUTIONS AND WORK DESCRIPTION 
    1. The U661E automatic transaxle assembly does not have an oil filler tube and oil level gauge. When adding fluid, add fluid through the refill hole on the rear transaxle cover sub-assembly. The fluid level can be adjusted by draining excess fluid (allowing excess fluid to overflow) through the No. 1 transmission oil filler tube of the automatic transaxle oil pan sub-assembly.

      HINT: 

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

    2. Before adjusting the fluid level, add the specified amount of fluid when the engine is cold and warm up the engine to circulate the fluid in the automatic transaxle assembly. Ensure that the fluid temperature is as specified and the engine is idling.
      GTY521165Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. The U661E automatic transaxle assembly requires Toyota Genuine ATF WS.

      Using transmission fluid other than the above type may cause abnormal noise or vibration, or damage the transmission of your vehicle.

    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.
      GTY496989Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  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. for Sport Package:
      1. Remove the No. 1 engine under cover.

        Refer to PROCEDURE - Step 6

    3. Remove the rear engine under cover LH.

      Refer to PROCEDURE - Step 9

  4. PERFORM INITIAL FILLING 
    NOTE:

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

    1. Remove the refill plug and gasket from the automatic transaxle assembly.
      GTY511633Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      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 fluid leak due to a loose case plug, or a faulty plug gasket or O-ring
    2. Using a 6 mm hexagon socket wrench, remove the overflow plug and gasket from the automatic transaxle oil pan sub-assembly.
      GTY511621Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      NOTE:
      • If ATF comes out after removing the overflow plug, wait until the 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. Using a 6 mm hexagon socket wrench, check that the No. 1 transmission oil filler tube is tightened to the specified torque.
      GTY519978Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 No. 1 Transmission Oil Filler Tube

      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 fluid cannot be precisely adjusted.

      HINT: 

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

    4. Perform initial filling.
      1. Fill the automatic transaxle assembly through the refill hole until fluid begins to come out of the overflow plug hole.
        GTY511624Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        NOTE:

        Use Toyota Genuine ATF WS.

        Using transmission fluid other than the above type may cause abnormal noise or vibration, or damage the transmission of your vehicle.

    5. Wait until the fluid flow slows and only drips come out.
      GTY511623Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    6. Temporarily install the gasket and the overflow plug to the automatic transaxle oil pan sub-assembly.
      GTY511621Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      HINT: 

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

  5. ADD SPECIFIED AMOUNT OF FLUID 
    1. Fill the automatic transaxle assembly with the correct amount of fluid as listed in the table below.
      NOTE:

      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 oil seal LH or front drive shaft oil seal 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 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)
    2. Temporarily install the gasket and refill plug to avoid fluid spillage.
      GTY511633Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      HINT: 

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

    3. Lower the vehicle.
  6. ADJUST FLUID TEMPERATURE (for Using the Techstream) 

    HINT: 

    The actual ATF temperature can be checked on the Data List using the Techstream.

    1. Connect the Techstream to the DLC3 with the engine switch off.
    2. Turn the engine switch on (IG) and turn the Techstream 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 / Transmission / Active Test / Activate the TC Terminal.

      Powertrain > Transmission > Active Test 

      Tester Display
      Activate the TC Terminal
    4. Select the Active Test item: Activate the TC Terminal / ON.
    5. Select the Data List menu: A/T Oil Temperature 1.

      Powertrain > Transmission > Data List 

      Tester Display
      A/T Oil Temperature No. 1
    6. Check the ATF temperature.
      NOTE:
      • If the fluid temperature is below 45°C (113°F), proceed to the next step. (Recommended ATF temperature: 40°C (104°F) or less)
      • If the 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, and then back to P.

      HINT: 

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

    10. 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.
      GTY505848Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      NOTE:

      Do not pause for more than 1.5 seconds.

      HINT: 

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

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

      HINT: 

      • When 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 fluid level cannot be precisely adjusted due to fluctuations in engine speed.

      HINT: 

      • Disconnecting terminals TC and TE1 activates engine idle speed control mode.
      • In engine idle speed control mode, engine idle speed control starts when the 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, fluid temperature detection mode is active until the engine switch is turned off.
    15. Warm up the engine with the engine idling until the fluid temperature reaches the fluid level adjustment temperature (40 to 45°C (104 to 113°F)).
      Below Fluid Level Adjustment Temperature Fluid Level Adjustment Temperature Above 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 fluid temperature is within the fluid level adjustment temperature range, immediately proceed to the Adjust Fluid Level procedure.
      • If the fluid temperature is 45°C (113°F) or more, stop the engine and wait until the fluid temperature drops to 40°C (104°F) or less. Then perform the Adjust Fluid Temperature procedure again from the beginning.

      HINT: 

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

      D SHIFT INDICATOR

      Below Fluid Level Adjustment Temperature
      (40°C or less)
      (104°F or less)
      Fluid Level Adjustment Temperature
      (40 to 45°C)
      (104 to 113°F)
      Above Fluid Level Adjustment Temperature
      (45°C or more)
      (113°F or more)
      OFF ON Blinks
  7. ADJUST FLUID TEMPERATURE (for not Using the Techstream) 
    NOTE:

    Make sure to switch to fluid temperature detection mode within 60 seconds after starting the engine.

    1. Depress and hold the brake pedal.
    2. 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.

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

      HINT: 

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

    4. 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 12 seconds or more.
      GTY505848Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      NOTE:

      Do not pause for more than 1.5 seconds.

      HINT: 

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

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

      HINT: 

      • When 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.
      • Fluid temperature detection mode is active until the engine switch is turned off.
    6. Move the shift lever from N to P.
    7. Release the brake pedal.
    8. Allow the engine to idle until the D shift indicator comes on again.
      D SHIFT INDICATOR

      Below Fluid Level Adjustment Temperature
      (40°C or less)
      (104°F or less)
      Fluid Level Adjustment Temperature
      (40 to 45°C)
      (104 to 113°F)
      Above 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 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.

      HINT: 

      • In fluid temperature detection mode, the D shift indicator comes on, goes off, or blinks depending on the fluid temperature.
      • The fluid filling procedure should be performed when the D shift indicator is on (the fluid temperature is within the fluid level adjustment temperature range).
  8. ADJUST FLUID LEVEL 
    WARNING:

    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. Adjust the fluid level.
      1. Using a 6 mm hexagon socket wrench, remove the overflow plug and gasket from the automatic transaxle oil pan sub-assembly.
        GTY511621Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        WARNING:

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

      2. Check the amount of fluid that comes out of the overflow plug hole.
        NOTE:

        If only a small amount of fluid (approximately 1 cc) comes out of the overflow plug hole, then only 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 fluid.

      3. If the amount of fluid that comes out of the overflow plug hole is large, wait until the fluid flow slows and only drips come out.
        GTY511623Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      4. If no fluid comes out of the overflow plug hole, remove the refill plug and gasket. Then add transaxle fluid through the refill hole until fluid comes out of the overflow plug hole. Wait until the fluid flow slows and only drips come out.
        GTY511624Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        NOTE:

        Use Toyota Genuine ATF WS.

        Using transmission fluid other than the above type may cause abnormal noise or vibration, or damage the transmission of your vehicle.

      5. Check that the fluid flow has slowed and only drips come out.
        GTY505855Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

        HINT: 

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

    3. Using a 6 mm hexagon socket wrench, install a new gasket and the overflow plug to the automatic transaxle oil pan sub-assembly.
      GTY511621Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Torque: 40 N.m (408 kgf/cm, 30 ft.lbf) 

    4. Install a new gasket and the refill plug to the automatic transaxle assembly.
      GTY511633Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Torque: 49 N.m (500 kgf/cm, 36 ft.lbf) 

    5. Lower the vehicle.
    6. Turn the engine switch off.

      HINT: 

      Turning the engine switch off ends fluid temperature detection mode.

    7. Disconnect the Techstream from the DLC3 (for Using the Techstream).
  9. REBUILD WORK 
    1. Lift the vehicle.
    2. Clean each part.
    3. Check for fluid leaks.
    4. Install the rear engine under cover LH.
    5. for Sport Package:
      1. Install the No. 1 engine under cover.

        Refer to PROCEDURE - Step 97

    6. Lower the vehicle.