Removal [06/2020 - 12/2021]: Procedure

PRECAUTION
NOTE:
- If the HV supply battery assembly has been struck or dropped, replace it.
- When connecting a connector to the HV supply battery assembly., confirm that the connector is securely connected through the following:
  - Push the connector until a click sound is heard.
  
  - Visually check and confirm that the connector is securely connected by pulling on it.
- Make sure to insulate the high-voltage connectors and terminals of the HV supply battery assembly with insulating tape after removing it.
  If the HV supply battery assembly stored without insulating the connectors and terminals, electric shock or fire may result.
- When performing repairs around the HV supply battery assembly, such as using a tap, do not allow metal shavings to enter the HV supply battery assembly.
- Do not touch any high voltage wire harnesses, connectors or parts with bare hands.
- Do not allow foreign matter, such as grease or oil, to adhere to the bolts or nuts of the HV supply battery assembly.
- Do not climb on top of or stand on the HV supply battery assembly.
- Do not allow any foreign matter or water to enter the HV supply battery assembly.
- If any bolts, nuts or clips are dropped into the HV supply battery assembly, make sure to remove them.
- After the ignition switch is turned off, there may be a waiting time before disconnecting the negative (-) auxiliary battery terminal.
  Refer to BEFORE DISCONNECTING BATTERY [06/2020 - 10/2022]

READ VALUE USING GTS

Enter the following menus: Powertrain / HV supply battery assembly / Data List / Hybrid/EV Battery Temperature 1 to 20.

Powertrain > HV Battery > Data List

Tester Display
Hybrid/EV Battery Temperature 1
Hybrid/EV Battery Temperature 2
Hybrid/EV Battery Temperature 3
Hybrid/EV Battery Temperature 4
Hybrid/EV Battery Temperature 5
Hybrid/EV Battery Temperature 6
Hybrid/EV Battery Temperature 7
Hybrid/EV Battery Temperature 8
Hybrid/EV Battery Temperature 9
Hybrid/EV Battery Temperature 10
Hybrid/EV Battery Temperature 11
Hybrid/EV Battery Temperature 12
Hybrid/EV Battery Temperature 13
Hybrid/EV Battery Temperature 14
Hybrid/EV Battery Temperature 15
Hybrid/EV Battery Temperature 16
Hybrid/EV Battery Temperature 17
Hybrid/EV Battery Temperature 18
Hybrid/EV Battery Temperature 19
Hybrid/EV Battery Temperature 20

Read the Data List.
NOTE:
If any of the temperatures listed in "Hybrid/EV Battery Temperature 1 to 20" are 50°C or more, leave the vehicle until the temperature drops to less than 50°C.

RECOVER REFRIGERANT FROM REFRIGERATION SYSTEM
Refer to PROCEDURE - Step 1
REMOVE SERVICE PLUG GRIP
Refer to REMOVAL [06/2020 - 12/2021]
REMOVE NO. 2 INVERTER PROTECTOR
Refer to PROCEDURE - Step 8
REMOVE CONNECTOR COVER ASSEMBLY
Refer to PROCEDURE - Step 9
CHECK TERMINAL VOLTAGE
Refer to PROCEDURE - Step 10

INSTALL CONNECTOR COVER ASSEMBLY

WARNING:

Be sure to wear insulated gloves.

Using a T20 "TORX" socket wrench, install the connector cover assembly to the inverter with converter assembly with the bolt (A).

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

*a	Bolt (A)
*b	Bolt (B)

NOTE:

Do not allow any foreign matter or water to enter the hybrid motor control inverter assembly.

Install the 2 bolts (B).
Torque: 8.0 N*m (82 kgf*cm,

INSTALL NO. 2 INVERTER PROTECTOR
Refer to PROCEDURE - Step 14

REMOVE NO. 2 ENGINE UNDER COVER ASSEMBLY

Remove the 4 bolts, screw, 7 clips and No. 2 engine under cover assembly.

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

	Bolt
	Screw
	Clip

REMOVE FRONT FLOOR COVER LH
Refer to PROCEDURE - Step 42

REMOVE NO. 2 FLOOR UNDER COVER

Remove the 2 screws and 13 clips.

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

	Screw
	Clip

Disengage the clip and remove the No. 2 floor under cover.

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

REMOVE FRONT FLOOR COVER RH
Refer to PROCEDURE - Step 43

REMOVE ENGINE UNDER COVER HEAT INSULATOR

Using the service plug grip, remove the No. 23 traction battery bracket.

HINT:

Insert the projection of the service plug grip and turn the button of the No. 23 traction battery bracket counterclockwise to release the lock.

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

*1	Service Plug Grip
*2	No. 23 Traction Battery Bracket
*a	Projection
*b	Turn
*c	Button

Remove the 2 bolts, 2 nuts and engine under cover heat insulator.

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

	Bolt
	Nut

REMOVE FRONT EXHAUST PIPE ASSEMBLY
Refer to PROCEDURE - Step 3

REMOVE FRONT NO. 2 FLOOR HEAT INSULATOR

Remove the 3 nuts, clip and front No. 2 floor heat insulator.

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

	Nut
	Clip

REMOVE FRONT LOWER NO. 1 FLOOR HEAT INSULATOR

Remove the nut, bolt and front lower No. 1 floor heat insulator.

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

	Bolt
	Nut

DISCONNECT NO. 3 LIQUID TUBE

WARNING:

Be sure to wear insulated gloves and protective goggles.

Remove the bolt and No. 3 liquid tube from the HV supply battery assembly.

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Remove the O-ring from the No. 3 liquid tube.
NOTE:
Seal the openings of the disconnected parts with vinyl tape to prevent entry of moisture and foreign matter.

DISCONNECT NO. 9 DISCHARGE TUBE

WARNING:

Be sure to wear insulated gloves and protective goggles.

Remove the bolt and No. 9 discharge tube from the HV supply battery assembly.

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Remove the O-ring from the No. 9 discharge tube.
NOTE:
Seal the openings of the disconnected parts with vinyl tape to prevent entry of moisture and foreign matter.

DISCONNECT FLOOR UNDER WIRE

WARNING:

Be sure to wear insulated gloves and protective goggles.

NOTE:

Insulate the disconnected terminals and connector with insulating tape.

Remove the bolt and disconnect the HV floor under wire.

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Remove the bolt and open the wire harness protector as shown in the illustration.

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Remove the bolt and disconnect the HV floor under wire.

Disengage the 2 clamps.

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Disengage the rubber cap and slide it as shown in the illustration.

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Using a screwdriver, slide the green-colored lock of the connector as shown in the illustration to release it and disconnect the HV floor under wire.

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

*a	Green-colored Lock
	Slide

DISCONNECT NO. 2 TRACTION BATTERY WIRE

WARNING:

Be sure to wear insulated gloves and protective goggles.

Disconnect the 3 No. 2 traction battery wire connectors from the HV supply battery assembly.

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

REMOVE HV SUPPLY BATTERY ASSEMBLY

WARNING:

Because the weight of the HV supply battery assembly is extremely heavy, make sure to follow the work procedures described in the appropriate service information.
If work is not performed according to the procedures described in the appropriate service information, there is a danger that the components could fall down.
Do not damage the HV supply battery assembly with the fork etc.
Be sure to wear insulated gloves and protective goggles.

Using an engine lifter and 4 attachments or equivalent tools, support the HV supply battery assembly as shown in the illustration.

*a	Engine Lifter
	Area That Can Touch The Ground

NOTE:

Do not allow foreign matter, such as grease or oil, to adhere to the bolts of the HV supply battery assembly.
To prevent the wire harness from being caught, make sure to bundle the wire harness using insulating tape or equivalent.
Since the HV supply battery assembly is very heavy, 2 people are needed to remove it. When removing the HV supply battery assembly, be careful not to damage the parts around it.
When removing/installing/moving the HV supply battery assembly, make sure not to tilt it more than 80°.
If the HV supply battery assembly has been struck or dropped, replace it.
Do not apply any load outside of the area that can touch the ground.

Remove the 9 bolts.

Slowly lower the engine lifter to remove the HV supply battery assembly.
NOTE:
Be careful not to drop the HV supply battery assembly.

Follow the procedure below when moving the HV supply battery assembly from the engine lifter.

Install the SST at the position shown in the illustration.

SST: 09893-42010

Using 4 hooks, 4 belt slings and a chain block, hoist the HV supply battery assembly.

NOTE:

When removing/installing/moving the HV supply battery assembly, make sure not to tilt it more than 80°.

Using the height adjustable attachment, set so that the HV supply battery assembly is in contact with the position shown in the illustration, and place the HV supply battery assembly on the height adjustable attachment.

Area That Can Touch The Ground

NOTE:

To prevent the wire harness from being caught, make sure to bundle the wire harness using insulating tape or equivalent.
When removing/installing/moving the HV supply battery assembly, make sure not to tilt it more than 80°.
If the HV supply battery assembly has been struck or dropped, replace it.
Do not apply any load outside of the area that can touch the ground.
Do not place the lower surface of the battery on the ground.

REMOVE VALVE TO CONNECTOR TUBE

WARNING:

Be sure to wear insulated gloves and protective goggles.

NOTE:

Insulate the disconnected terminals and connector with insulating tape.

Remove the bolt and valve to connector tube.

NOTE:

Seal the openings of the disconnected parts with vinyl tape to prevent entry of moisture and foreign matter.

Remove the 2 O-rings from the valve to connector tube.

PERFORM RECOVERY INSPECTION
1. Before returning the HV supply battery assembly, make sure to perform a recovery inspection.
  Refer to RECOVERY INSPECTION [06/2020 - ]