Removal [10/2022 - 10/2023]: Procedure

WARNING: This page is about a different variant/trim than selected.

CHECK FOR DTC

Check for DTCs.

for AWD with NICKEL METAL HYDRIDE BATTERY:
Refer to DTC CHECK / CLEAR [10/2022 - ]
for LITHIUM-ION BATTERY:
Refer to DTC CHECK / CLEAR [10/2022 - ]

WARNING:

Confirm that DTC P0AA6-49 (Hybrid / EV Battery Voltage System Isolation Internal Electronic Failure), P1C7C-49 (Hybrid / EV Battery Voltage System Isolation (A/C Area) Internal Electronic Failure), P1C7D-49 (Hybrid / EV Battery Voltage System Isolation (Hybrid/EV Battery Area) Internal Electronic Failure), P1C7E-49 (Hybrid / EV Battery Voltage System Isolation (Transaxle Area) Internal Electronic Failure) or P1C7F-49 (Hybrid / EV Battery Voltage System Isolation (Direct Current Area) Internal Electronic Failure), P1C80-49 (Hybrid/EV Battery Voltage System Isolation (Rear Motor Area) Internal Electronic Failure, for 4WD/AWD) is not output before removing or installing the HV battery. If this DTC is output, perform troubleshooting for this DTC first.

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

To reduce the risk of electric shock, do not perform troubleshooting before checking for DTCs.

PRECAUTION
NOTE:
After turning the ignition switch off, waiting time may be required before disconnecting the cable from the negative (-) auxiliary battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) auxiliary battery terminal notices before proceeding with work.
REMOVE DECK BOARD ASSEMBLY
Refer to PROCEDURE - Step 2
REMOVE REAR NO. 2 FLOOR BOARD
Refer to PROCEDURE - Step 3
REMOVE BATTERY HOLE COVER
Refer to PROCEDURE - Step 4
DISCONNECT CABLE FROM NEGATIVE AUXILIARY BATTERY TERMINAL
Refer to PROCEDURE - Step 5
REMOVE BATTERY SERVICE HOLE COVER
See step 1

REMOVE SERVICE PLUG GRIP

WARNING:

Be sure to wear insulated gloves.

Do not inspect or service the high voltage system with the service plug grip installed.

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

To reduce the risk of electric shock, make sure to remove the service plug grip to cut off the high voltage circuit before servicing the vehicle.

To reduce the risk of electric shock, make sure to wait at least 10 minutes after removing the service plug grip to fully discharge the high voltage capacitor inside the inverter with converter assembly.

Keep the removed service plug grip in your pocket to prevent other technicians from accidentally installing it while you are servicing the vehicle.

NOTE:

After removing the service plug grip, turning the ignition switch on (READY) may cause a malfunction. Do not turn the ignition switch on (READY) unless instructed by the appropriate service information .
Do not touch the terminals of the service plug grip.
If the service plug grip has been struck or dropped, replace it.

HINT:

Waiting for at least 10 minutes is required to discharge the high voltage capacitor inside the inverter with converter assembly.

While wearing insulated gloves, rotate the handle of the service plug grip and remove the service plug grip as indicated by the arrows, in the order shown in the illustration.