Fluid - CVT: Service and Repair

HYBRID TRANSAXLE FLUID

ADJUSTMENT
1. BEFORE REFILLING TRANSMISSION
^ This transmission requires Toyota Genuine ATF WS transmission fluid.
^ After servicing the transmission, you must refill the transmission with the correct amount of fluid.
^ If the fluid leaks out, proceed to the next step.
^ Maintain the vehicle in a horizontal position while adjusting the fluid level.
^ If the entire transmission is replaced, proceed to the "PERFORM FLUID CIRCULATION" procedure.

HINT:
New transmissions are already filled with transmission fluid.

2. PERFORM FLUID CIRCULATION
(a) Allow the engine to idle with the air conditioning OFF.
(b) Move the shift lever through the entire gear range to circulate fluid.
(c) Allow the engine to idle until the fluid temperature reaches 30°C (86°F). Proceed to the next step to check fluid temperature.

HINT:
The fluid temperature should be less than 40°C (104°F) before starting the engine.

3. CHECK FLUID TEMPERATURE
(a) With the intelligent tester:
(1) Turn the power switch off.
(2) Connect the intelligent tester to the DLC3.
(3) Turn the power switch on (IG).
(4) Turn on the tester.
(5) Select the following menu items: OBD/MOBD, HV ECU / DATA LIST.
(6) Check T/M OIL TEMP.
(7) Allow the engine to idle until the fluid temperature reaches 30°C (86°F).





(b) Without the intelligent tester (Using the D shift indicator):
(1) Using SST, connect terminals TC and CG of the DLC3.
SST 09843-18040
(2) Turn the power switch on (READY).
(3) Shift the shift lever from the P position to the D position.





(4) Move the shift lever back and forth between N and D at 1.5 second intervals for 6 seconds.





(5) The D position indicator turns on for 2 seconds when the combination meter starts to detect the fluid temperature.
(6) The D position indicator turns on again when the fluid temperature reaches 30°C (86°F) and blinks when it exceeds 40°C (104°F).
4. CHECK FLUID LEVEL

NOTICE:
^ The fluid temperature must be between 30°C (86°F) and 40°C (104°F) to check the fluid level.
^ Do not insert the fill nozzle into the refill hole more than 30 mm (1.18 in.) to avoid contact with the moving parts.





(a) Remove the overflow plug with the engine idling.
(b) Check that the fluid comes out of the overflow tube.





(c) Wait until the overflow slows to a trickle.
If fluid does not come out, perform the following:
(1) Install the overflow plug.
(2) Stop the engine.





(3) Remove the refill plug.





(4) Fill the transmission through the refill hole until fluid begins to trickle out from the overflow tube.
(5) Allow the engine to idle.
(6) Wait until the overflow slows to a trickle.





(7) Remove the overflow plug.
(8) Wait until fluid begins to trickle out from the overflow tube.





(9) Reinstall the refill plug.
Torque: 39 N*m (398 kgf*cm, 29 ft.*lbf)
(d) Reinstall the overflow plug.
Torque: 20 N*m (204 kgf*cm, 15 ft.*lbf)