On-Vehicle Inspection [12/2023 - ]: Procedure

HINT: 

Refer to PROCEDURE - Step 2

HINT: 

If no parts have been removed and installed, it is not necessary to start the oil pump with motor assembly (step [#]) when replacing the hybrid transaxle fluid, performing a fluid level inspection, etc.

Pre-procedure1

• Start the engine assembly.
  1. Put the engine in Inspection Mode (Maintenance Mode).

     HINT: 

     Refer to INSPECTION MODE PROCEDURE [09/2023 - ]

  2. Idle the engine for 30 seconds with the ignition switch ON (READY).
  3. Turn the ignition switch off.
• Start the oil pump with motor assembly. [#]
  1. According to the display on the GTS perform the Active Test.

     Powertrain > Hybrid Control > Active Test 

     Tester Display
     Control the Motor/Generator Cooling Oil Pump

     NOTE:

     The Active Test is not performed when the duty ratio is 50% or lower or 95% or higher, or the ambient temperature is 0°C (32°F) or lower.

  2. Start the oil pump with motor assembly and wait for 30 seconds.
  3. Stop the oil pump with motor assembly.
  4. Turn the ignition switch off.
• Using a 10 mm hexagon socket wrench, remove the filler plug and gasket from the hybrid vehicle transaxle assembly.

  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

• Check that the hybrid transaxle fluid level is between 0 to 10 mm (0 to 0.394 in.) from the bottom lip of the filler plug opening.
  NOTE:

  • When inspecting the hybrid transaxle fluid, make sure that the vehicle is level.
  • Be sure to directly check that the hybrid transaxle fluid level is within the specified range.
  • Driving the vehicle with an insufficient or excessive amount of hybrid transaxle fluid may damage the hybrid vehicle transaxle assembly.
  • If the hybrid transaxle fluid was replaced or if hybrid transaxle fluid was added, make sure to recheck the hybrid transaxle fluid level after starting the engine assembly and oil pump with motor assembly.

  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

  *a	0 to 10 mm (0 to 0.394 in.)

Post-procedure1

• Check for leaks if the hybrid transaxle fluid level is low. (If there are no hybrid transaxle fluid leaks but the hybrid transaxle fluid level is low, add hybrid transaxle fluid.)

  HINT: 

  See step  3

• Using a 10 mm hexagon socket wrench, install the filler plug and a new gasket to the hybrid vehicle transaxle assembly.

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

1. Check that hybrid transaxle fluid is not leaking from the joints or connected areas.

HINT: 

Refer to PROCEDURE - Step 11