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                        | Last Modified: 11-20-2023 | 6.11:8.1.0 | Doc ID: RM1000000012UHH |  
                        | Model Year Start: 2018 | Model: Camry | Prod Date Range: [03/2017 -                    
                                       ] |  
                        | Title: LIGHTING (INT): LIGHTING SYSTEM: HOW TO PROCEED WITH TROUBLESHOOTING; 2018 - 2024 MY Camry [03/2017 -        ] |  
                     
                        
                           | HOW TO PROCEED WITH TROUBLESHOOTING |  CAUTION / NOTICE / HINT
                     HINT: 
                        
Use the following procedure to troubleshoot the lighting system.
*: Use the Techstream.
 PROCEDURE
                     
                        
                           | 1.  | VEHICLE BROUGHT TO WORKSHOP |  
                     
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                           | 2.  | CUSTOMER PROBLEM ANALYSIS AND SYMPTOM CHECK |  
                     HINT: 
                        
In troubleshooting, confirm that the problem symptoms have been accurately identified. Preconceptions should be discarded in order to make an accurate judgment. To clearly understand what the problem symptoms are, it is extremely important to ask the customer about the problem and the conditions at the time the malfunction occurred.
Gather as much information as possible for reference. Past problems that seem unrelated may also help in some cases.
The following 5 items are important points for problem analysis:
                              
                                 
                                 
                              
                              
                                 
                                    | What | Vehicle model, system name |  
                                    | When | Date, time, occurrence frequency |  
                                    | Where | Road conditions |  
                                    | Under what conditions? | Driving conditions, weather conditions |  
                                    | How did it happen? | Problem symptoms |  
                     
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                                 |   |  |  (a) Measure the battery voltage. Standard Voltage:  11 to 14 V If the voltage is below 11 V, recharge or replace the battery before proceeding to the next step. (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.  | CHECK COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM* |  (a) Using the Techstream, check for CAN communication system DTCs. Click here
                        
                           
                              ![2018 MY Camry [03/2017 - 06/2017]; NETWORKING: CAN COMMUNICATION SYSTEM: DIAGNOSIS SYSTEM](/t3Portal/stylegraphics/info.gif)  ![2018 MY Camry [06/2017 - 08/2018]; NETWORKING: CAN COMMUNICATION SYSTEM: DIAGNOSIS SYSTEM](/t3Portal/stylegraphics/info.gif)  ![2019 MY Camry [08/2018 - 09/2019]; NETWORKING: CAN COMMUNICATION SYSTEM: DIAGNOSIS SYSTEM](/t3Portal/stylegraphics/info.gif)  ![2020 MY Camry [09/2019 - 03/2020]; NETWORKING: CAN COMMUNICATION SYSTEM: DIAGNOSIS SYSTEM](/t3Portal/stylegraphics/info.gif)  ![2020 MY Camry [03/2020 - 10/2020]; NETWORKING: CAN COMMUNICATION SYSTEM: DIAGNOSIS SYSTEM](/t3Portal/stylegraphics/info.gif)  ![2021 MY Camry [10/2020 - 08/2021]; NETWORKING: CAN COMMUNICATION SYSTEM: DIAGNOSIS SYSTEM](/t3Portal/stylegraphics/info.gif)  ![2022 - 2024 MY Camry [08/2021 -        ]; NETWORKING: CAN COMMUNICATION SYSTEM: DIAGNOSIS SYSTEM](/t3Portal/stylegraphics/info.gif)  
                     
                        
                           | Result | Proceed to |  
                           | CAN DTCs are not output | A |  
                           | CAN DTCs are output | B |  
                     
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                                 | A |  
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                           | 5.  | PROBLEM SYMPTOMS TABLE |  (a) Refer to Problem Symptoms Table. Click here
                        
                           
                              ![2018 MY Camry [03/2017 - 06/2017]; LIGHTING (INT): LIGHTING SYSTEM: PROBLEM SYMPTOMS TABLE](/t3Portal/stylegraphics/info.gif)  ![2018 - 2019 MY Camry [06/2017 - 09/2019]; LIGHTING (INT): LIGHTING SYSTEM: PROBLEM SYMPTOMS TABLE](/t3Portal/stylegraphics/info.gif)  ![2020 - 2021 MY Camry [09/2019 - 08/2021]; LIGHTING (INT): LIGHTING SYSTEM: PROBLEM SYMPTOMS TABLE](/t3Portal/stylegraphics/info.gif)  ![2022 - 2024 MY Camry [08/2021 -        ]; LIGHTING (INT): LIGHTING SYSTEM: PROBLEM SYMPTOMS TABLE](/t3Portal/stylegraphics/info.gif)  
                     
                        
                           | Result | Proceed to |  
                           | Fault is not listed in Problem Symptoms Table | A |  
                           | Fault is listed in Problem Symptoms Table | B |  
                     
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                                 | A |  
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                           | 6.  | OVERALL ANALYSIS AND TROUBLESHOOTING* |  (a) Operation Check. Click here
                        
                           
                              ![2018 MY Camry [03/2017 - 06/2017]; LIGHTING (INT): LIGHTING SYSTEM: OPERATION CHECK](/t3Portal/stylegraphics/info.gif)  ![2018 - 2019 MY Camry [06/2017 - 09/2019]; LIGHTING (INT): LIGHTING SYSTEM: OPERATION CHECK](/t3Portal/stylegraphics/info.gif)  ![2020 - 2024 MY Camry [09/2019 -        ]; LIGHTING (INT): LIGHTING SYSTEM: OPERATION CHECK](/t3Portal/stylegraphics/info.gif)  (b) Terminals of ECU. Click here
                        
                           
                              ![2018 MY Camry [03/2017 - 06/2017]; LIGHTING (INT): LIGHTING SYSTEM: TERMINALS OF ECU](/t3Portal/stylegraphics/info.gif)  ![2018 MY Camry [06/2017 - 08/2018]; LIGHTING (INT): LIGHTING SYSTEM: TERMINALS OF ECU](/t3Portal/stylegraphics/info.gif)  ![2019 MY Camry [08/2018 - 09/2019]; LIGHTING (INT): LIGHTING SYSTEM: TERMINALS OF ECU](/t3Portal/stylegraphics/info.gif)  ![2020 - 2024 MY Camry [09/2019 -        ]; LIGHTING (INT): LIGHTING SYSTEM: TERMINALS OF ECU](/t3Portal/stylegraphics/info.gif)  (c) Data List / Active Test. Click here
                        
                           
                              ![2018 MY Camry [03/2017 - 06/2017]; LIGHTING (INT): LIGHTING SYSTEM: DATA LIST / ACTIVE TEST](/t3Portal/stylegraphics/info.gif)  ![2018 - 2024 MY Camry [06/2017 -        ]; LIGHTING (INT): LIGHTING SYSTEM: DATA LIST / ACTIVE TEST](/t3Portal/stylegraphics/info.gif)  (d) Inspection. 
                     
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                           | 7.  | ADJUST, REPAIR OR REPLACE |  
                     
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                           | NEXT |   | END |  |