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                           Last Modified: 05-08-2025 | 
                        6.11:8.1.0  | 
                        
                           Doc ID: RM100000002FR6R | 
                      
                     
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                           Model Year Start: 2024 | 
                        
                           Model: RAV4 HV | 
                        
                           Prod Date Range: [10/2023 -                    
                                       ] | 
                      
                     
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                           Title: HYBRID / BATTERY CONTROL: HYBRID VEHICLE CONTROL ECU: REMOVAL; 2024 - 2025 MY RAV4 HV [10/2023 -        ] | 
                      
                   
                  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 hybrid vehicle control ECU assembly removal/installation are shown below. 
                  Necessary Procedure After Parts Removed/Installed/Replaced
                  
                     
                        
                        
                        
                        
                     
                     
                        
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                               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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                               Disconnect cable from negative battery terminal 
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                               Perform steering sensor zero point calibration 
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                               Lane control system 
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                               Parking support brake system* 
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                               Pre-collision system 
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                               Reset back door close position 
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                               Power back door system 
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                               Back door lock initialization 
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                               Power door lock control system 
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                                 w/ Smart Key System:
                                 
                                    - 
Hybrid vehicle control ECU assembly
 
                                  
                               
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                               Code registration 
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                                    - 
Wireless door lock control system (with smart key system)
 
                                    - 
Smart key system (for Entry function)
 
                                    - 
Smart key system (for start function)
 
                                    - 
Hybrid control system cannot be started
 
                                  
                               
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                                 w/o Smart Key System:
                                 
                                    - 
Hybrid vehicle control ECU assembly
 
                                  
                               
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                               Code registration 
                            | 
                           
                               Engine start function 
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                  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 
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                               See Procedure 
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                               Vehicle enrolled in Toyota Audio Multimedia system or safety connect system 
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                               6 minutes 
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                               Vehicle not enrolled in Toyota Audio Multimedia system and safety connect system 
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                               1 minute 
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                  PROCEDURE
                   
                  1.   PRECAUTION 
                  CAUTION: 
                  Be sure to read precaution thoroughly before servicing. 
                   
                  Click here
                        
                           
                               
                           
                        
                     
                   
                  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 DECK BOARD ASSEMBLY 
                  Click here
                        
                           
                               
                           
                        
                     
                   
                   
                  3. REMOVE REAR NO. 2 FLOOR BOARD 
                  Click here
                        
                           
                               
                           
                        
                     
                   
                   
                  4. REMOVE BATTERY HOLE COVER 
                  Click here
                        
                           
                               
                           
                        
                     
                   
                   
                  5. DISCONNECT CABLE FROM NEGATIVE AUXILIARY BATTERY TERMINAL 
                  Click here
                        
                           
                               
                           
                        
                     
                   
                  
                     CAUTION: 
                     
                        - 
Wait at least 90 seconds after disconnecting the cable from the negative (-) auxiliary battery terminal to disable the SRS system.
 
                        - 
If the airbag deploys for any reason, it may cause a serious accident.
 
                      
                   
                   
                  NOTICE: 
                  When disconnecting the cable, some systems need to be initialized after the cable is reconnected. 
                  Click here
                        
                           
                               
                           
                        
                     
                   
                   
                  6. REMOVE LOWER NO. 1 INSTRUMENT PANEL AIRBAG ASSEMBLY 
                  Click here
                        
                           
                               
                           
                        
                     
                   
                   
                  7. REMOVE HYBRID VEHICLE CONTROL ECU ASSEMBLY 
                  
                     
                        
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                               (a) Disconnect the connector. 
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                  (b) w/ VEHICLE APPROACHING SPEAKER CONTROLLER: 
                  
                     
                        
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                               (1) Disconnect the connector. 
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                  (d) Disconnect the 3 hybrid vehicle control ECU assembly connectors as shown in the illustration. 
                  
                     
                        
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                               (e) Remove the 2 nuts and hybrid vehicle control ECU assembly. 
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                  8. REMOVE VEHICLE APPROACHING SPEAKER CONTROLLER (w/ VEHICLE APPROACHING SPEAKER CONTROLLER) 
                  Click here
                        
                           
                               
                           
                        
                     
                   
                  
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