Last Modified: 05-13-2024 |
6.11:8.1.0 |
Doc ID: RM100000001GCPS |
Model Year Start: 2020 |
Model: Corolla |
Prod Date Range: [01/2019 - 09/2022] |
Title: HYBRID / BATTERY CONTROL: HV BATTERY (for NICKEL METAL HYDRIDE BATTERY): REMOVAL; 2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022] |
REMOVAL
CAUTION / NOTICE / HINT
The necessary procedures (adjustment, calibration, initialization or registration) that must be performed after parts are removed and installed, or replaced during HV battery removal/installation are shown below.
Necessary Procedures After Parts Removed/Installed/Replaced
Replaced Part or Performed Procedure
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Necessary Procedure
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Effect/Inoperative Function when Necessary Procedure not Performed
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Link
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Auxiliary battery terminal is disconnected/reconnected
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Perform steering sensor zero point calibration
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Lane Control System
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Pre-collision System
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Replacement of HV battery
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Battery status info update
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HV battery status information cannot be updated
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NOTICE:
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If the HV battery has been struck or dropped, replace it.
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When connecting a connector to the HV battery, 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.
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Make sure to insulate the high-voltage connectors and terminals of the HV battery with insulating tape after removing it.
If the HV battery stored without insulating the connectors and terminals, electric shock or fire may result.
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When performing repairs around the HV battery, such as using a tap, do not allow metal shavings to enter the HV battery.
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Do not touch any high voltage wire harnesses, connectors or parts with bare hands.
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Hold the areas shown in the illustration and lift the HV battery.
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Do not allow foreign matter, such as grease or oil, to adhere to the bolts or nuts of the HV battery.
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Do not put your hands into the openings of the HV battery.
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When removing/installing/moving the HV battery assembly, make sure not to tilt it more than 80°.
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Do not climb on top of or stand on the HV battery.
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Do not allow any foreign matter or water to enter the HV battery.
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If any bolts, nuts or clips are dropped into the HV battery, make sure to remove them.
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After the power switch is turned off, the radio and display receiver assembly records various types of memory and settings. As a result, after turning the power switch off, make sure to wait at least 85 seconds before disconnecting the cable from the negative (-) auxiliary battery terminal. (for Audio and Visual System (for HV Model))
HINT:
When disposing of an HV battery, make sure to return it through an authorized collection agent who is capable of handling it safely. If the HV battery is returned via the manufacturer specified route, it will be returned properly and in a safe manner by an authorized collection agent.
PROCEDURE
1. PRECAUTION
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2. REMOVE SERVICE PLUG GRIP
Click here
3. DISCONNECT ENGINE WIRE
Click here
4. REMOVE CONNECTOR COVER ASSEMBLY
Click here
5. CHECK TERMINAL VOLTAGE
Click here
6. INSTALL CONNECTOR COVER ASSEMBLY
CAUTION:
Be sure to wear insulated gloves.
(a) Using a T25 "TORX" socket wrench, install the connector cover assembly to the inverter with converter assembly with the bolt (A).
Torque:
4.5 N·m {46 kgf·cm, 40 in·lbf}
NOTICE:
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Do not touch the connector cover assembly waterproof seal.
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Do not allow any foreign matter or water to enter the inverter with converter assembly.
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(b) Install the bolt (B).
Torque:
8.0 N·m {82 kgf·cm, 71 in·lbf}
7. CONNECT ENGINE WIRE
Click here
8. DISCONNECT REAR SEAT CENTER LAP TYPE BELT ASSEMBLY
Click here
9. REMOVE REAR SEAT CUSHION ASSEMBLY
Click here
10. REMOVE REAR SEAT CUSHION LOCK HOOK
Click here
11. REMOVE REAR DOOR SCUFF PLATE LH
Click here
12. REMOVE REAR UNDER SIDE COVER LH
Click here
13. REMOVE REAR DOOR SCUFF PLATE RH
HINT:
Use the same procedure as for the LH side.
14. REMOVE REAR UNDER SIDE COVER RH
HINT:
Use the same procedure as for the LH side.
15. REMOVE REAR UNDER COVER
(a) Disengage the 2 clips.
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(b) Disengage the 2 guides to remove the rear under cover from the rear seat cushion leg sub-assembly.
16. REMOVE REAR SEAT CUSHION LEG SUB-ASSEMBLY
(a) Remove the 6 bolts and rear seat cushion leg sub-assembly.
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17. REMOVE BATTERY COOLING BLOWER ASSEMBLY
Click here
18. REMOVE NO. 1 HV BATTERY COVER PANEL RH
CAUTION:
Be sure to wear insulated gloves.
(a) Using the service plug grip, remove the battery cover lock striker.
HINT:
Insert the projection of the service plug grip and turn the button of the battery cover lock striker counterclockwise to release the lock.
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*1
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Service Plug Grip
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*2
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Battery Cover Lock Striker
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*a
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Projection
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*b
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Turn
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*c
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Button
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(b) Remove the 3 bolts, 2 nuts and No. 1 HV battery cover panel RH from the HV battery.
19. DISCONNECT FLOOR UNDER WIRE
CAUTION:
Be sure to wear insulated gloves.
(a) Disconnect the 2 HV battery junction block assembly connectors.
NOTICE:
Insulate each disconnected high-voltage connector with insulating tape. Wrap the connector from the wire harness side to the end of the connector.
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(b) Disconnect the shield ground from the HV battery.
20. DISCONNECT FLOOR WIRE
CAUTION:
Be sure to wear insulated gloves.
(b) Disconnect the electric vehicle battery plug assembly connector.
(c) Disconnect the HV battery junction block assembly connector.
21. REMOVE NO. 1 HYBRID BATTERY EXHAUST DUCT
(b) Disengage the claw to remove the No. 1 hybrid battery exhaust duct from the HV battery.
22. DISCONNECT FLOOR WIRE
CAUTION:
Be sure to wear insulated gloves.
(b) Disconnect the battery voltage sensor connector.
23. REMOVE HV BATTERY
CAUTION:
Be sure to wear insulated gloves.
(a) Remove the 5 bolts and HV battery from the vehicle.
NOTICE:
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Do not allow foreign matter, such as grease or oil, to adhere to the bolts of the HV battery.
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To prevent the wire harness from being caught, make sure to bundle the wire harness using insulating tape or equivalent.
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Use cardboard or another similar material to protect the HV battery and vehicle body from damage.
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Since the HV battery is very heavy, 2 people are needed to remove it. When removing the HV battery, be careful not to damage the parts around it.
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When removing the HV battery from the vehicle, do not allow it to contact the vehicle.
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When removing/installing/moving the HV battery, make sure not to tilt it more than 80°.
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Insulate the disconnected terminals or connectors with insulating tape.
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If the HV battery has been struck or dropped, replace it.
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24. REMOVE UPPER NO. 1 HYBRID BATTERY COVER SUB-ASSEMBLY
CAUTION:
Be sure to wear insulated gloves and protective goggles.
(a) Remove the 6 bolts, 5 nuts and upper No. 1 hybrid battery cover sub-assembly from the HV battery.
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25. REMOVE NO. 1 HV BATTERY SHIELD PANEL
Click here
26. REMOVE BATTERY VOLTAGE SENSOR
Click here
27. REMOVE HYBRID BATTERY TERMINAL BLOCK
Click here
28. REMOVE HV BATTERY JUNCTION BLOCK ASSEMBLY
Click here
29. REMOVE NO. 1 HYBRID BATTERY SHIELD SUB-ASSEMBLY
Click here
30. REMOVE NO. 1 HYBRID BATTERY INTAKE DUCT
Click here
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