Adjustment [10/2022 - ]: Procedure

1. The UA81E/F 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 plug hole on the automatic transaxle case 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 overflow plug of the transaxle housing.

   HINT: 

   "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.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

3. The UA81E/F automatic transaxle assembly requires Toyota Genuine ATF WS.
4. The adjustment should be performed according to the procedures and notes.

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

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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 and side to side of the vehicle is within +/- 1°).

2. Remove the No. 2 engine under cover assembly.

   Refer to PROCEDURE - Step 12

3. Remove the front fender apron seal LH.

   Refer to PROCEDURE - Step 13

1. Remove the refill plug and gasket from the automatic transaxle case sub-assembly.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

2. Using a 10 mm hexagon socket wrench, remove the overflow plug and gasket from the transaxle housing.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

   Courtesy 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 automatic transaxle fluid cannot be precisely adjusted.

   HINT: 

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

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      NOTE:

      Use Toyota Genuine ATF WS.

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

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

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

6. Using a 10 mm hexagon socket wrench, temporarily install the gasket and overflow plug to the transaxle housing.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   HINT: 

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

7. Temporarily install the gasket and refill plug to the automatic transaxle case sub-assembly.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   HINT: 

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

1. Remove the refill plug and gasket from the automatic transaxle case sub-assembly.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   NOTE:

   Use Toyota Genuine ATF WS.

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

   HINT: 

   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)	5.2 liters (5.5 US qts, 4.6 Imp. qts)
   Automatic transaxle assembly replacement (when reusing the torque converter assembly)	4.8 liters (5.1 US qts, 4.2 Imp. qts)
   Removal and installation of the transmission case side cover	2.7 liters (2.9 US qts, 2.4 Imp. qts)
   Removal and installation of the front drive shaft assembly	2.7 liters (2.9 US qts, 2.4 Imp. qts)
   Removal and installation of the transmission valve body assembly	2.7 liters (2.9 US qts, 2.4 Imp. qts)
   Removal and installation of the torque converter assembly	3.0 liters (3.2 US qts, 2.6 Imp. qts)
   Repair of an 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. Temporarily install the gasket and refill plug to avoid automatic transaxle fluid spillage.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   HINT: 

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

4. Lower the vehicle.

HINT: 

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

Powertrain > Transmission > Active Test 

1. According to the display on the GTS, perform the Data List "A/T Oil Temperature No. 1".
2. According to the display on the GTS, perform the Active Test Activate the TC Terminal and set it to "ON".
3. 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: 35°C (95°F) or less.
   • If the automatic transaxle fluid temperature is 45°C (113°F) or more, turn the ignition switch off and wait until the automatic transaxle fluid temperature drops below 45°C (113°F).
4. Depress and hold the brake pedal.
5. Start the engine.
6. Change the shift position from P to D, and then back to P.

   HINT: 

   • Change the shift position to circulate the automatic transaxle fluid through each part of the automatic transaxle assembly.
   • Keep each position for approximately 3 seconds.
7. While observing the D shift indicator on the combination meter, move the shift lever between N and D at an interval of less than 1.5 seconds for 6 seconds or more.

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   *a	Shift Position
   *b	Indication of Shift Position
   *c	Automatic Transaxle Fluid Temperature Detection Mode
   *d	6 sec. or more
   *e	2 sec.
   *f	Less than 1.5 sec.

   NOTE:

   Do not pause for more than 1.5 seconds.

   HINT: 

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

8. Check that the D shift indicator on the combination meter, comes on for 2 seconds.

   HINT: 

   • 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 (perform the Active Test Activate the TC Terminal and set it to "ON") and perform the procedure again.
9. Push the P position switch.
10. Release the brake pedal.
11. According to the display on the GTS, perform the Active Test Activate the TC Terminal and set it to "OFF".
    NOTE:

    Make sure that the Active Test is changed to "OFF". If it is not, the automatic transaxle fluid level cannot be precisely adjusted due to fluctuations in engine speed.

    HINT: 

    • Changing the Active Test to "OFF" activates engine idle speed control mode.
    • In engine idle speed control mode, engine idle speed control starts when the automatic transaxle fluid temperature reaches the specified temperature and the engine speed is maintained.
    • Even after the Active Test is changed to "OFF", automatic transaxle fluid temperature detection mode will be active until the ignition switch is turned off.
12. Adjust the automatic transaxle fluid temperature to the automatic transaxle fluid level adjustment temperature.
    1. Check the automatic transaxle fluid temperature by monitoring the D shift indicator.

       Relationship between Automatic Transaxle Fluid Level Adjustment Temperature and the D Shift Indicator

       	Below Automatic Transaxle Fluid Level Adjustment Temperature	Automatic Transaxle Fluid Level Adjustment Temperature	Above Automatic Transaxle Fluid Level Adjustment Temperature
       Automatic Transaxle Fluid Temperature ("A/T Oil Temperature No. 1" displayed on the GTS)	35°C (95°F) or less	35 to 45°C (95 to 113°F)	45°C (113°F) or more
       D Shift Indicator	Off	On	Blinks

       HINT: 

       • 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).
    2. If the D shift indicator is on [Automatic Transaxle Fluid Level Adjustment Temperature: 35 to 45°C (95 to 113°F)]: Immediately proceed to the Adjust Automatic Transaxle Fluid Level (Step 8).
    3. Adjust the automatic transaxle fluid temperature.
       1. If the D shift indicator is off [Below Automatic Transaxle Fluid Level Adjustment Temperature: 35°C (95°F) or less]: Warm up the engine with the engine idling in engine idle speed control mode until the D shift indicator turns on.
       2. If the D shift indicator is on [Automatic Transaxle Fluid Level Adjustment Temperature: 35 to 45°C (95 to 113°F)]: Immediately proceed to Adjust Automatic Transaxle Fluid Level (Step 8).
       3. If the D shift indicator is blinking [Above Automatic Transaxle Fluid Level Adjustment Temperature: 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 (the D shift indicator goes off). Then perform the adjust automatic transaxle fluid temperature procedure again from the beginning.

1. Turn the ignition switch off.
2. Depress and hold the brake pedal.
3. Start the engine. [#1]
   NOTE:

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

4. Change the shift position from P to D, and then back to P. [#2]

   HINT: 

   • Change the shift position to circulate the automatic transaxle fluid through each part of the automatic transaxle assembly.
   • Keep each position for approximately 3 seconds.
5. While observing the D shift indicator on the combination meter, move the shift lever between N and D at an interval of less than 1.5 seconds for 12 seconds or more. [#3]

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   *a	Shift Position
   *b	Indication of Shift Position
   *c	Automatic Transaxle Fluid Temperature Detection Mode
   *d	12 sec. or more
   *e	2 sec.
   *f	Less than 1.5 sec.

   NOTE:

   Do not pause for more than 1.5 seconds.

   HINT: 

   • Performing this operation will cause the vehicle to enter automatic transaxle fluid temperature detection mode and engine idle speed control mode.
   • In engine idle speed control mode, engine idle speed control starts when the automatic transaxle fluid temperature reaches the specified temperature and the engine speed is maintained.
   • Perform [#1] to [#3] within 60 seconds.
6. Check that the D shift indicator on the combination meter, comes on for 2 seconds.

   HINT: 

   • 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 (Start the engine. [#1]) and perform the procedure again.
   • Automatic transaxle fluid temperature detection mode is active until the ignition switch is turned off.
7. Push the P position switch.
8. Release the brake pedal.
9. Adjust the automatic transaxle fluid temperature to the automatic transaxle fluid level adjustment temperature.
   1. Check the automatic transaxle fluid temperature by monitoring the D shift indicator.

      Relationship between Automatic Transaxle Fluid Level Adjustment Temperature and the D Shift Indicator

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

      HINT: 

      • 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).
   2. If the D shift indicator is on [Automatic Transaxle Fluid Level Adjustment Temperature: 35 to 45°C (95 to 113°F)]: Immediately proceed to the Adjust Automatic Transaxle Fluid Level (Step 8).
   3. Adjust the automatic transaxle fluid temperature.
      1. If the D shift indicator is off [Below Automatic Transaxle Fluid Level Adjustment Temperature: 35°C (95°F) or less]: Warm up the engine with the engine idling in engine idle speed control mode until the D shift indicator turns on.
      2. If the D shift indicator is on [Automatic Transaxle Fluid Level Adjustment Temperature: 35 to 45°C (95 to 113°F)]: Immediately proceed to Adjust Automatic Transaxle Fluid Level (Step 8).
      3. If the D shift indicator is blinking [Above Automatic Transaxle Fluid Level Adjustment Temperature: 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 (the D shift indicator goes off). Then perform the adjust automatic transaxle fluid temperature procedure again from the beginning.

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 and side to side of the vehicle is within +/- 1°).

2. Using a 10 mm hexagon socket wrench, remove the overflow plug and gasket from the transaxle housing.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   WARNING:

   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 5 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.

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

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      HINT: 

      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. Remove the refill plug and gasket from the automatic transaxle case sub-assembly.

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   2. Add automatic transaxle fluid through the refill plug hole until automatic transaxle fluid comes out of the overflow plug hole.

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      NOTE:

      Use Toyota Genuine ATF WS.

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

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

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

6. Using a 10 mm hexagon socket wrench, install the overflow plug and a new gasket to the transaxle housing.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Torque: 50 N.m (510 kgf/cm, 37 ft.lbf) 

   NOTE:

   To prevent the gasket from being deformed when tightening, coat it with Toyota Genuine ATF WS.

7. Install the refill plug and a new gasket to the automatic transaxle case sub-assembly.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

   NOTE:

   To prevent the gasket from being deformed when tightening, coat it with Toyota Genuine ATF WS.

8. Lower the vehicle.
9. Turn the ignition switch off.

   HINT: 

   Turning the ignition switch off ends automatic transaxle fluid temperature detection mode.

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

1. Lift the vehicle.
2. Clean each part.
3. Check for automatic transaxle fluid leaks.
4. Install the front fender apron seal LH.

   Refer to PROCEDURE - Step 82

5. Install the No. 2 engine under cover assembly.

   Refer to PROCEDURE - Step 84

6. Lower the vehicle.