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                           Last Modified: 08-28-2024 | 
                        6.11:8.1.0  | 
                        
                           Doc ID: RM100000000VIQV | 
                      
                     
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                           Model Year Start: 2016 | 
                        
                           Model: Sienna | 
                        
                           Prod Date Range: [12/2015 -                    
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                           Title: MF1A (TRANSFER / 4WD / AWD): 4WD CONTROL ECU: REMOVAL; 2016 - 2020 MY Sienna [12/2015 -        ] | 
                      
                   
                  REMOVAL
                   
                  PROCEDURE
                   
                  1. REMOVE MAIN BODY ECU 
                  (See page 
                        
                           
                               
                           
                        
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                  2. REMOVE 4WD ECU ASSEMBLY 
                  
                     
                        
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                               (a) Disconnect the 4WD ECU connector. 
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                  (b) Remove the bolt and 4WD ECU. 
                  
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