Procedures
U660E AUTOMATIC TRANSAXLE: AUTOMATIC TRANSAXLE FLUID: ADJUSTMENT
1. PRECAUTIONS AND WORK DESCRIPTION
(a) The U660E automatic transaxle does not have an oil filler tube and oil level gauge. When adding fluid, add fluid through the refill hole on the transaxle case. The fluid level can be adjusted by draining excess fluid (allowing excess fluid to overflow) through the overflow tube of the oil pan.
HINT
"Overflow" indicates the condition under which fluid comes out of the overflow plug hole.
(b) 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 transaxle. Ensure that the fluid temperature is as specified and the engine is idling.
(c) The U660E automatic transaxle requires Toyota Genuine ATF WS.
(d) The adjustment should be performed according to the procedure and notes.
2. WORK FLOW
(a) The adjustment should be performed according to the procedure referenced in the work flow below.
3. BEFORE FILLING TRANSAXLE WITH FLUID
(a) Lift the vehicle.
NOTICE:
Set the vehicle on a lift so that the vehicle is kept level when it is lifted up.
(b) Remove the engine under covers RH and LH, and fender apron seal LH.
4. PERFORM INITIAL FILLING
NOTICE:
If the transaxle is hot (AT fluid 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])
(a) Remove the refill plug and gasket from the automatic transaxle.
NOTICE:
After performing any of the following operations, it is not necessary to perform the initial filling procedure. Proceed to the next "ADD SPECIFIED AMOUNT OF FLUID" procedure.
(b) Using a 6 mm socket hexagon wrench, remove the overflow plug and gasket from the automatic transaxle.
NOTICE:
* 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 overflow tube, temporarily tighten the overflow plug.
(c) Using a 6 mm socket hexagon wrench, check that the overflow tube is tightened to the specified torque.
Torque : 1.7 Nm (17 kgf-cm, 15 in-lbf)
NOTICE:
If the transmission overflow tube is not tightened to the specified torque, the amount of fluid cannot be precisely adjusted.
HINT
To check the torque of the overflow tube, insert the hexagon socket into the overflow hole.
(d) Perform initial filling
(1) Fill the transaxle through the refill hole until fluid comes out of the overflow plug hole.
NOTICE:
Use Toyota Genuine ATF WS.
(e) Wait until the fluid flow slows and only drips come out.
(f) Temporarily install the overflow plug.
HINT
Reuse the old gasket as the plug will be removed again to adjust the fluid level.
5. ADD SPECIFIED AMOUNT
(a) Fill the transaxle with the correct amount of fluid as listed in the table below.
NOTICE:
Refill amount differs depending on the operation that was performed.
Standard capacity:
(b) Temporarily install the refill plug to avoid fluid splash.
HINT
Reuse the old gasket as the plug will be removed again to adjust the fluid level.
(c) Lower the vehicle.
6. ADJUST FLUID TEMPERATURE
(a) When 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 ignition switch off.
(2) Turn the ignition switch to ON and turn the Techstream main switch ON.
NOTICE:
Check that electrical systems such as the air conditioning system, audio system and lighting system are off.
(3) Select the following menu items: "Powertrain / ECT / Active Test / Connect the TC and TE1".
(4) Select the data list item: "A/T Oil Temperature 1".
(5) Check "A/T Oil Temperature 1".
NOTICE:
* 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 ignition switch off and wait until the fluid temperature drops below 45°C (113°F).
(6) Select the active test menu: "Connect the TC and TE1 / ON".
HINT
Indicator lights in the meter will blink to indicate a DTC when "Connect the TC and TE1 / ON" is selected.
(7) Depress and hold down the brake pedal.
(8) Start the engine.
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.
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.
NOTICE:
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 step where terminals TC and TE1 are first connected and perform the procedure again.
(12) Move the shift lever from N to P.
(13) Release the brake pedal.
(14) Select the active test menu: "Connect the TC and TE1 / OFF".
NOTICE:
Be sure to select "Connect the TC and TE1 / OFF". If the active test continues, the fluid level cannot be precisely adjusted due to fluctuations in idle speed.
HINT
* Selecting "Connect the TC and TE1 / OFF" activates engine idle speed control mode.
* In engine idle speed control mode, engine idle speed control starts when the fluid temperature becomes 35°C (95°F) or more and the engine speed is maintained at approximately 800 rpm.
* Even after selecting "Connect the TC and TE1 / OFF", fluid temperature detection mode remains active until the ignition switch is turned off.
(15) Warm up the engine with the engine idling until the fluid temperature reaches the normal operating temperature (40 to 45°C [104 to 113°F]).
NOTICE:
* If the fluid temperature is within the normal operating 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.
Text in Illustration
D shift indicator
(b) When not using the Techstream:
(1) Using SST, connect terminals 13 (TC) and 4 (CG) of the DLC3 with the ignition switch off.
SST : 09843-18040
(2) Depress and hold down the brake pedal.
(3) Start the engine.
NOTICE:
Check that electrical systems such as the air conditioning system, audio system and lighting system are off.
HINT
Indicator lights in the meter will blink to indicate a DTC when terminals 13 (TC) and 4 (CG) are connected.
(4) 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.
(5) 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.
NOTICE:
Do not pause for more than 1.5 seconds.
HINT
Performing this operation will cause the vehicle to enter fluid temperature detection mode.
(6) 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 step where terminals 13 (TC) and 4 (CG) are first connected and perform the procedure again.
(7) Move the shift lever from N to P.
(8) Release the brake pedal.
Remove SST from terminals 13 (TC) and 4 (CG).
SST : 09843-18040
NOTICE:
Be sure that terminals 13 (TC) and 4 (CG) are not connected. If the terminals are connected, the fluid level cannot be precisely adjusted due to fluctuations in engine speed.
HINT
* If SST is removed from terminals 13 (TC) and 4 (CG), engine idle control mode is activated.
* In engine idle speed control mode, engine idle speed control starts when the fluid temperature becomes 35°C (95°F) or more and the engine speed is maintained at approximately 800 rpm.
* Even after SST is removed from terminals 13 (TC) and 4 (CG), fluid temperature detection mode is active until the ignition switch is turned off.
Allow the engine to idle until the D shift indicator comes on again.
Text in Illustration
D shift indicator
NOTICE:
* 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.
* Fluid filling procedure should be performed when the D shift indicator is on (the fluid temperature is within the normal operating temperature range).
7. ADJUST FLUID LEVEL
CAUTION:
Use caution while the engine is idling and the radiator fan is operating.
(a) Lift the vehicle.
(b) Adjust fluid level
(1) Using a 6 mm socket hexagon wrench, remove the overflow plug and gasket.
CAUTION:
Be careful as the fluid coming out of the overflow hole is hot.
(2) Check the amount of fluid that comes out of the overflow plug hole.
NOTICE:
If only a small amount of fluid (approximately 1 cc (0.06 cu in.)) comes out of the overflow hole, then only fluid remaining in the overflow 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 hole is large, wait until the fluid flow slows and only drips come out.
(4) If no fluid comes out of the overflow hole, remove the refill plug and gasket. Then add transaxle fluid through the refill hole until fluid comes out of the overflow hole. Wait until the fluid flow slows and only drips come out.
NOTICE:
Use Toyota Genuine ATF WS.
(5) Check that the fluid flow has slowed and only drips come out.
HINT
The fluid flow will not stop completely because the fluid continues to expand as its temperature increases.
(c) Install the overflow plug with a new gasket.
Torque : 40 Nm (408 kgf-cm, 30 ft-lbf)
(d) Install the refill plug with a new gasket.
Torque : 49 Nm (500 kgf-cm, 36 ft-lbf)
(e) Lower the vehicle.
(f) Turn the ignition switch off.
HINT
Turning the ignition switch off exits fluid temperature detection mode.
(g) Remove the Techstream form the DLC3 (when using the Techstream).
8. AFTER FILLING TRANSMISSION
(a) Lift the vehicle.
(b) Clean each part.
(c) Check for fluid leaks.
(d) Install the fender apron seal LH, and engine under covers RH and LH.
(e) Lower the vehicle.