| Last Modified: 05-08-2025 | 6.11:8.1.0 | Doc ID: RM100000001LR31 |
| Model Year Start: 2020 | Model: RAV4 HV | Prod Date Range: [10/2019 - 06/2020] |
| Title: HYBRID / BATTERY CONTROL: HV RELAY ASSEMBLY (for NICKEL METAL HYDRIDE BATTERY): REMOVAL; 2020 MY RAV4 HV [10/2019 - 06/2020] | ||
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 junction block assembly removal/installation are shown below.
Necessary Procedures After Parts Removed/Installed/Replaced
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Replaced Part or Performed Procedure |
Necessary Procedures |
Effect/Inoperative Function when Necessary Procedure not Performed |
Link |
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*: When performing learning using the Techstream.
Click here
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Auxiliary battery terminal is disconnected/reconnected |
Perform steering sensor zero point calibration |
Lane control system |
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Parking support brake system* |
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Pre-collision system |
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Lighting system (EXT)(w/ AFS) |
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Memorize steering angle neutral point |
Parking assist monitor system |
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Panoramic view monitor system |
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Reset back door close position |
Power back door system |
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Back door lock initialization |
Power door lock control system |
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CAUTION:
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Orange wire harnesses and connectors indicate high-voltage circuits. To prevent electric shock, always follow the procedure described in the repair manual.
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for 2WD:
Click here
![2019 - 2020 MY RAV4 HV [11/2018 - 08/2020]; HYBRID / BATTERY CONTROL: HYBRID CONTROL SYSTEM (for 2WD with NICKEL METAL HYDRIDE BATTERY): PRECAUTION](/t3Portal/stylegraphics/info.gif)
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for AWD:
Click here
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for 2WD:
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To prevent electric shock, wear insulated gloves when working on wire harnesses and components of the high voltage system.
NOTICE:
After the ignition switch is turned off, the radio and display receiver assembly records various types of memory and settings. As a result, after turning the ignition switch off, be sure to wait for the time specified in the following table before disconnecting the cable from the negative (-) auxiliary battery terminal.
Waiting Time before Disconnecting Cable from Negative (-) Auxiliary Battery Terminal
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System Name |
See Procedure |
|---|---|
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Vehicle enrolled in Toyota Audio Multimedia system or safety connect system |
6 minutes |
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Vehicle not enrolled in Toyota Audio Multimedia system and safety connect system |
1 minute |
PROCEDURE
1. PRECAUTION
NOTICE:
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.
2. REMOVE SERVICE PLUG GRIP
Click here
3. REMOVE NO. 2 INVERTER PROTECTOR (for AWD w/ NO. 2 INVERTER PROTECTOR)
Click here
4. DISCONNECT ENGINE ROOM MAIN WIRE
Click here
5. REMOVE CONNECTOR COVER ASSEMBLY
Click here
6. CHECK TERMINAL VOLTAGE
Click here
7. INSTALL CONNECTOR COVER ASSEMBLY
Click here
8. CONNECT ENGINE ROOM MAIN WIRE
Click here
9. INSTALL NO. 2 INVERTER PROTECTOR (for AWD w/ NO. 2 INVERTER PROTECTOR)
Click here
10. REMOVE BENCH TYPE REAR SEAT CUSHION ASSEMBLY
Click here
11. REMOVE REAR SEAT CUSHION LOCK HOOK
Click here
12. REMOVE NO. 1 INDOOR ELECTRICAL KEY ANTENNA ASSEMBLY
Click here
13. REMOVE REAR DOOR SCUFF PLATE LH
Click here
14. REMOVE NO. 3 BATTERY SERVICE COVER BOARD
Click here
15. REMOVE REAR DOOR SCUFF PLATE RH
HINT:
Use the same procedure as for the LH side.
16. REMOVE NO. 2 BATTERY SERVICE COVER BOARD
Click here
17. REMOVE BATTERY SERVICE COVER BOARD
Click here
18. REMOVE REAR SEAT CUSHION LEG SUB-ASSEMBLY
Click here
19. REMOVE NO. 1 HV BATTERY COVER PANEL RH
Click here
20. DISCONNECT HV FLOOR UNDER WIRE
Click here
21. DISCONNECT FLOOR WIRE
CAUTION:
Be sure to wear insulated gloves.
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(a) Disengage the clamp. |
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(b) Disconnect the electric vehicle battery plug assembly connector.
(c) Disconnect the HV battery junction block assembly connector.
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(d) Disengage the 2 clamps to disconnect the floor wire. |
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22. REMOVE NO. 1 HYBRID BATTERY EXHAUST DUCT
Click here
23. REMOVE UPPER HV BATTERY COVER SUB-ASSEMBLY
Click here
24. REMOVE HV BATTERY JUNCTION BLOCK ASSEMBLY
CAUTION:
Be sure to wear insulated gloves and protective goggles.
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(a) Remove the bolt and disconnect the electric vehicle battery plug assembly. |
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(b) Disconnect the HV battery junction block assembly connector. NOTICE: Insulate the disconnected connectors with insulating tape. |
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(c) Disengage the clamp.
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(d) Disengage the 2 claws and open the wiring harness protector. |
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(e) Disconnect the HV battery junction block assembly connector. NOTICE: Insulate the disconnected connectors with insulating tape. |
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(f) Using a screwdriver with its tip wrapped with protective tape, disengage the 2 claws and remove the wiring harness protector. |
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(g) Disconnect the HV battery junction block assembly connector. |
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(h) Remove the 4 nuts and HV battery junction block assembly from the HV battery. NOTICE: If the HV battery junction block assembly has been struck or dropped, replace it with a new one. |
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