Last Modified: 05-13-2024 6.11:8.1.0 Doc ID: RM10000000277UH
Model Year Start: 2023 Model: Corolla Prod Date Range: [09/2022 -           ]
Title: HYBRID / BATTERY CONTROL: HV BATTERY (for LITHIUM-ION BATTERY): INSTALLATION; 2023 - 2025 MY Corolla Corolla HV [09/2022 -        ]

INSTALLATION

PROCEDURE

1. INSPECT NO. 1 HV BATTERY INTAKE FILTER

Click here 2023 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [09/2022 -        ]; MAINTENANCE: BATTERY COOLING FILTER: INSPECTION

2. INSTALL NO. 4 HV BATTERY CARRIER BRACKET

CAUTION:

Be sure to wear insulated gloves.

(a) Install the No. 4 HV battery carrier bracket to the HV battery with the 2 bolts.

Torque:

8.5 N·m {87 kgf·cm, 75 in·lbf}

3. INSTALL NO. 3 HYBRID BATTERY CARRIER BRACKET

CAUTION:

Be sure to wear insulated gloves.

(a) Install the No. 3 hybrid battery carrier bracket to the HV battery with the 2 bolts.

Torque:

8.5 N·m {87 kgf·cm, 75 in·lbf}

4. INSTALL NO. 2 HYBRID BATTERY CARRIER BRACKET

CAUTION:

Be sure to wear insulated gloves.

(a) Install the No. 2 hybrid battery carrier bracket to the HV battery with the 2 bolts.

Torque:

8.5 N·m {87 kgf·cm, 75 in·lbf}

5. INSTALL NO. 1 HV BATTERY CARRIER BRACKET SUB-ASSEMBLY

CAUTION:

Be sure to wear insulated gloves.

(a) Install the No. 1 HV battery carrier bracket sub-assembly to the HV battery with the 2 bolts.

Torque:

8.5 N·m {87 kgf·cm, 75 in·lbf}

6. INSTALL NO. 3 HV BATTERY PACK WIRE

(a) Engage the 2 clamps.

(b) Engage the claw to install the No. 3 HV battery pack wire to the No. 2 hybrid battery intake duct.

7. INSTALL NO. 2 HYBRID BATTERY INTAKE DUCT

CAUTION:

Be sure to wear insulated gloves.

(a) Install the No. 2 hybrid battery intake duct to the HV battery with the 2 bolts.

Torque:

7.5 N·m {76 kgf·cm, 66 in·lbf}

8. INSTALL HV BATTERY

CAUTION:

Be sure to wear insulated gloves.

(a) Install the HV battery to the vehicle with the 3 bolts (A) and bolt (B).

Torque:

19 N·m {194 kgf·cm, 14 ft·lbf}

NOTICE:

  • Do not allow foreign matter, such as grease or oil, to adhere to the bolts of the HV battery.
  • To prevent the wire harness from being caught, make sure to bundle the wire harness using insulating tape or equivalent.
  • Use cardboard or another similar material to protect the HV battery and vehicle body from damage.
  • Since the HV battery is very heavy, 2 people are needed to install it. When installing the HV battery, be careful not to damage the parts around it.
  • When removing/installing/moving the HV battery, make sure not to tilt it more than 80°.
  • While lowering the HV battery into the vehicle, do not allow it to contact the vehicle.
  • As bolts with 2 different lengths are used, make sure to install each bolt to the correct position.
  • If the HV battery has been struck or dropped, replace it.

*a

Bolt (A)

(Bolt Length: 25 mm (0.984 in.))

*b

Bolt (B)

(Bolt Length: 24 mm (0.945 in.))

9. CONNECT FLOOR WIRE

CAUTION:

Be sure to wear insulated gloves.

(a) Engage the clamp.

(b) Connect the HV battery connector.

10. INSTALL HYBRID BATTERY HOSE ASSEMBLY

(a) Engage the 2 claws to install the hybrid battery hose assembly to the HV battery.

(b) Connect the hybrid battery hose assembly to the vehicle.

11. CONNECT FLOOR WIRE

CAUTION:

Be sure to wear insulated gloves.

(a) Engage the 2 clamps.

(b) Connect the HV battery connector.

(c) Engage the clamp.

(d) Connect the 2 HV battery junction block assembly connectors.

(e) Connect the electric vehicle battery plug assembly connector.

12. CONNECT FLOOR UNDER WIRE

CAUTION:

Be sure to wear insulated gloves.

(a) Connect the shield ground to the HV battery.

(b) Connect the 2 HV battery junction block assembly connectors.

NOTICE:

Make sure that the connectors are connected securely.

13. INSTALL NO. 1 HV BATTERY COVER PANEL RH

CAUTION:

Be sure to wear insulated gloves.

(a) Install the No. 1 HV battery cover panel RH to the HV battery with the 5 nuts.

Torque:

7.5 N·m {76 kgf·cm, 66 in·lbf}

*1

Battery Cover Lock Striker

*a

Button

*b

Push

(b) Install the battery cover lock striker, then push the button to lock it.

14. INSTALL BATTERY COOLING BLOWER ASSEMBLY

Click here 2023 - 2025 MY Corolla Corolla HV [09/2022 -        ]; HYBRID / BATTERY CONTROL: BATTERY BLOWER: INSTALLATION

15. INSTALL SERVICE PLUG GRIP

Click here 2023 - 2025 MY Corolla Corolla HV [09/2022 -        ]; HYBRID / BATTERY CONTROL: SERVICE PLUG GRIP: INSTALLATION

16. PERFORM INITIALIZATION

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