AUTOMATIC TRANSAXLE FLUID HIGH TEMPERATURE ADJUSTMENT

CAUTION / NOTICE / HINT

CAUTION:

Be careful not to burn yourself when the automatic transaxle fluid temperature is high.
To prevent injury due to contact with an operating V-ribbed belt or cooling fan, keep your hands and clothing away from the V-ribbed belt and cooling fans when working in the engine compartment with the engine running or the engine switch on (IG).

PROCEDURE

ADJUST AUTOMATIC TRANSAXLE FLUID LEVEL AT HIGH TEMPERATURE

Warm up and stop the engine. [#1]

Check the automatic transaxle fluid temperature.

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

Enter the following menus: Powertrain / Transmission / Data List / Engine Speed and A/T Oil Temperature No. 1.

Powertrain > Transmission > Data List

Tester Display
Engine Speed
A/T Oil Temperature No.1

Note

If the automatic transaxle fluid temperature tends to decrease when the automatic transaxle fluid temperature is between 85°C (185°F) and 90°C (194°F) with the engine idling, make sure that automatic transaxle fluid temperature is above 90°C (194°F) before starting work.
If the automatic transaxle fluid temperature tends to increase when the automatic transaxle fluid temperature is between 85°C (185°F) and 90°C (194°F) with the engine idling, make sure that automatic transaxle fluid temperature is below 85°C (185°F) before starting work.
If the automatic transaxle fluid temperature tends not to change when the automatic transaxle fluid temperature is between 85°C (185°F) and 90°C (194°F) with the engine idling, make sure that automatic transaxle fluid temperature is 87.5°C (189.5°F) before starting work.

Depress and hold the brake pedal.
Start the engine.
Slowly move the shift lever from P to D, and then back to P.

Tech Tips

Keep the shift lever in each position for approximately 3 seconds.
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°).
Remove the front wheel opening extension pad LH.

Click here
Remove the No. 3 engine under cover.

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Remove the front fender apron seal LH.

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Loosen the refill plug.

Using a 6 mm hexagon socket wrench, remove the overflow plug and gasket from the automatic transaxle oil pan sub-assembly. [#2]

CAUTION:

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

Note

Before removing the overflow plug, make sure that the automatic transaxle fluid temperature is between 85°C (185°F) and 90°C (194°F) and the engine idle speed is within the range specified in the tables provided in step [#3].
When adding automatic transaxle fluid (step [#3]), add the specified amount in accordance with the engine idle speed.
If automatic transaxle fluid does not come out, add automatic transaxle fluid to the refill hole until automatic transaxle fluid comes out of the overflow hole, install the overflow plug, and perform the procedure from step [#1] again.

*a	Automatic Transaxle Fluid Temperature [°C (°F)]
*b	Engine Idle Speed [rpm]
*c	Remove the overflow plug
*d	Install the overflow plug
*e	Time
*f	Example: When adjusting with the engine idle speed between 600 and 700 rpm

Make sure that the automatic transaxle fluid temperature and engine speed remain within the appropriate range until the overflow plug is tightened in step [#4].

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

Tech Tips

If the automatic transaxle fluid temperature is increasing, the automatic transaxle fluid flow will not completely stop because the automatic transaxle fluid expands as its temperature increases.
Using a 6 mm hexagon socket wrench, install the overflow plug and a new gasket to the automatic transaxle oil pan sub-assembly. [#4]

Torque:

40 N*m { 408 kgf*cm, 30 ft.*lbf }
Lower the vehicle.
Turn the engine switch off.
Remove the refill plug and gasket from the rear transaxle cover sub-assembly.
Install a hose and funnel to the refill hole as shown in the illustration.
Note
- The automatic transaxle assembly is designed so that when the automatic transaxle fluid level is correct and the automatic transaxle fluid temperature is approximately 40°C (104°F), the automatic transaxle fluid level will be at the same height as the end of the overflow tube. When adjusting the automatic transaxle fluid level when the automatic transaxle fluid temperature is 85°C (185°F) to 90°C (194°F), drain the amount of automatic transaxle fluid that has expanded due to heat (step [#2]). After the automatic transaxle fluid has been drained, make sure to add the amount of automatic transaxle fluid specified in the tables below [#3].
- Pay extra attention when adding automatic transaxle fluid because adding an excessive or insufficient amount of automatic transaxle fluid may cause a malfunction in the automatic transaxle assembly.
- Do not insert the hose into the refill hole excessively.
- Be sure to use tape or equivalent to prevent the hose from sagging.
Tech Tips

Make sure to use a hose with a length of 1250 mm (4.1 ft.) and an outer diameter of 16 mm (0.63 in.).

Add the specified amount of automatic transaxle fluid to the refill hole. [#3]

If determining the specific amount of automatic transaxle fluid to be added, refer to the table below.

Specified Amount to be Added (Automatic Transaxle Fluid Weight)

Specified Amount to be Added at Automatic Transaxle Fluid Temperature of 85°C (185°F) to 90°C (194°F)

Engine Idle Speed (rpm)

600 to 700

246 g (8.68 oz) (304 cc (18.6 cu. in.))

Engine Idle Speed (rpm)

700 to 800

235 g (8.29 oz) (291 cc (17.8 cu. in.))

Note

If automatic transaxle fluid remains inside the hose, the amount of automatic transaxle fluid will not be as specified. Therefore, when adding automatic transaxle fluid, make sure that no automatic transaxle fluid remains inside the hose.
The acceptable margin of error when adding automatic transaxle fluid is +/- 20 g (0.7 oz) or +/- 25 cc (1.5 cu. in.).
Use Toyota Genuine ATF WS.

Tech Tips

The values in the table are reference values for when the temperature of the automatic transaxle fluid to be added is between 10°C (50°F) and 30°C (86°F).
If automatic transaxle fluid comes out (the amount of automatic transaxle fluid is not as specified), perform the procedure from step [#1] again.

If determining the specified amount of automatic transaxle fluid to be added by volume, calculate it based on weight and density at each temperature.

*a	Density [g / cc]	*b	Temperature of automatic transaxle fluid to be measured [°C (°F)]
*c	Relation between temperature and density of Toyota genuine ATF WS	-	-

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 }
Remove the GTS from the DLC3.
Lift the vehicle.
Clean each part.
Check for automatic transaxle fluid leaks.
Install the front fender apron seal LH.

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Install the No. 3 engine under cover.

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Install the front wheel opening extension pad LH.

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Lower the vehicle.
Operation is complete.