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                           Last Modified: 05-08-2025 | 
                        6.11:8.1.0  | 
                        
                           Doc ID: RM100000001QM4N | 
                      
                     
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                           Model Year Start: 2021 | 
                        
                           Model: RAV4 | 
                        
                           Prod Date Range: [08/2020 -                    
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                           Title: SUPPLEMENTAL RESTRAINT SYSTEMS: AIRBAG SYSTEM: HOW TO PROCEED WITH TROUBLESHOOTING; 2021 - 2025 MY RAV4 RAV4 HV [08/2020 -        ] | 
                      
                   
                  
                     
                        
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                               HOW TO PROCEED WITH TROUBLESHOOTING 
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                  CAUTION / NOTICE / HINT
                  
                     HINT: 
                     
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Use these procedures to troubleshoot the airbag system.
 
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*: Use the Techstream.
 
                      
                   
                   
                  PROCEDURE
                   
                  
                     
                        
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                               1.  
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                               VEHICLE BROUGHT TO WORKSHOP 
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                               2.  
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                               CUSTOMER PROBLEM ANALYSIS 
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                  (a) Confirm problem symptoms. 
                  Click here
                        
                           
                               
                           
                        
                     
                   
                  
                     
                        
                           
                              
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                               3.  
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                               INSPECT AUXILIARY BATTERY VOLTAGE 
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                  (a) Measure the auxiliary battery voltage with the ignition switch off. 
                  Standard voltage:  
                  11 to 14 V 
                  
                     HINT: 
                     
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A simple method to determine whether the auxiliary battery is discharged is to operate the horn.
 
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If the voltage is below 11 V, recharge or replace the auxiliary battery before proceeding.
 
                      
                   
                  (b) Check the fuses and relays. 
                  (c) Check the connector connections and terminals to make sure that there are no abnormalities such as loose connections, deformation, etc. 
                  
                     
                        
                           
                              
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                               4.  
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                               CHECK CAN COMMUNICATION SYSTEM* 
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                  (a) Using the Techstream, check if the CAN communication system is functioning normally. 
                  OK:  
                  CAN communication system is functioning normally. 
                  
                     HINT: 
                     
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Refer to Communication Bus Check in CAN Communication System.
for Gasoline Model: 
                           Click here
                                 
                                    
                                        
                                    
                                 
                                 
                                    
                                        
                                    
                                 
                                 
                                    
                                        
                                    
                                 
                                 
                                    
                                        
                                    
                                 
                                 
                                    
                                        
                                    
                                 
                              
                            
                           for HV Model: 
                           Click here
                                 
                                    
                                        
                                    
                                 
                              
                            
                         
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The airbag ECU assembly is connected to the CAN communication system. Therefore, before starting troubleshooting, make sure to check that there are no malfunctions in the CAN communication system.
 
                      
                   
                  
                     
                        
                           | NG | 
                           
                               
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                               GO TO CAN COMMUNICATION SYSTEM
 for Gasoline Model: 
                                 Click here
                                       
                                          
                                              
                                          
                                       
                                    
                                  
                                 for HV Model: 
                                 Click here
                                       
                                          
                                              
                                          
                                       
                                    
                                  
                              
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OK
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                               5.  
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                               SRS WARNING LIGHT CHECK 
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                  (a) Proceed to Operation System. 
                  Click here
                        
                           
                               
                           
                        
                     
                   
                  
                     
                        
                           
                              
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                  (a) Check for DTCs. 
                  Click here
                        
                           
                               
                           
                        
                     
                   
                  Body Electrical > SRS Airbag > Trouble Codes
                  OK:  
                  DTCs are not output. 
                  
                  
                     
                        
                           
                              
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OK
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                               7.  
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                               DIAGNOSTIC TROUBLE CODE CHART 
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                  (a) Diagnostic Trouble Code Chart. 
                  Click here
                        
                           
                               
                           
                        
                     
                   
                  
                     
                        
                           
                              
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                  (a) Clear the DTCs stored in memory. 
                  Click here
                        
                           
                               
                           
                        
                     
                   
                  Body Electrical > SRS Airbag > Clear DTCs
                  
                     
                        
                           
                              
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                  (a) Check for DTCs. 
                  Click here
                        
                           
                               
                           
                        
                     
                   
                  Body Electrical > SRS Airbag > Trouble Codes
                  OK:  
                  DTCs are not output. 
                  
                  
                     
                        
                           
                              
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OK
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                               12.  
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                               USE SIMULATION METHOD TO CHECK 
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                  Click here
                        
                           
                               
                           
                        
                     
                   
                  
                     
                        
                           
                              
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                               13.  
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                               IDENTIFICATION OF PROBLEM 
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                               14.  
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                               REPAIR OR REPLACEMENT 
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                               END 
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