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                        | Last Modified: 08-21-2023 | 6.11:8.1.0 | Doc ID: RM100000001YNWG |  
                        | Model Year Start: 2022 | Model: Avalon HV | Prod Date Range: [08/2021 -                    
                                       ] |  
                        | Title: CRUISE CONTROL: FRONT CAMERA SYSTEM: C1AA800; Front Recognition Camera Optical Axis Misalignment Malfunction; 2022 MY Avalon Avalon HV [08/2021 -        ] |  
                     
                        
                           | DTC | C1AA800 | Front Recognition Camera Optical Axis Misalignment Malfunction |  DESCRIPTIONThe forward recognition camera monitors its optical axis status. If it determines that the optical axis alignment has become misaligned, it will store DTC C1AA800. 
                     
                        
                        
                        
                        
                     
                     
                        
                           | DTC No. | Detection Item | DTC Detection Condition | Trouble Area |  
                           | C1AA800 | Front Recognition Camera Optical Axis Misalignment Malfunction | 3 seconds or more after the ignition switch is turned ON, the forward recognition camera detects an optical axis misalignment when the vehicle is being driven at a speed of 5 km/h (4 mph) or more. | 
                                 
                                    
Windshield glass
Vehicle operating conditions
Wheel alignment
 |  CAUTION / NOTICE / HINT
                     NOTICE: 
                        
When replacing the forward recognition camera, replace it with a new one. If a forward recognition camera which was installed to another vehicle is used, the information stored in the forward recognition camera will not match the information from the vehicle and a DTC may be stored.
When the forward recognition camera is replaced with a new one or the windshield glass is replaced or removed/installed, make sure to read Before Starting Adjustment, then perform optical axis alignment for the forward recognition camera and clear the vehicle control history for each system.
HINT: Forward recognition camera axis alignment can be performed by using either One Time Recognition, Sequential Recognition or Driving Adjustment. One Time Recognition: Click here
                                 
                                    
                                       ![2022 MY Avalon Avalon HV [08/2021 -        ]; CRUISE CONTROL: FRONT CAMERA: TARGET ADJUSTMENT(ONE TIME RECOGNITION)](/t3Portal/stylegraphics/info.gif)  Sequential Recognition: Click here
                                 
                                    
                                       ![2022 MY Avalon Avalon HV [08/2021 -        ]; CRUISE CONTROL: FRONT CAMERA: TARGET ADJUSTMENT(SEQUENTIAL RECOGNITION)](/t3Portal/stylegraphics/info.gif)  Driving Adjustment: Click here
                                 
                                    
                                       ![2022 MY Avalon Avalon HV [08/2021 -        ]; CRUISE CONTROL: FRONT CAMERA: DRIVING ADJUSTMENT](/t3Portal/stylegraphics/info.gif) 
When replacing the windshield glass of a vehicle equipped with a forward recognition camera, make sure to use a Toyota genuine part. If a non-Toyota genuine part is used, the forward recognition camera may not be able to be installed due to a missing bracket or the forward recognition camera may not operate properly due to a difference in the transmissivity or black ceramic border.
Forward recognition camera optical axis may deviate if the vehicle is driven on a banked road, such as a racetrack. This deviation can be corrected by driving the vehicle on a normal road for a while.
Forward recognition camera optical axis may deviate when the vehicle is overloaded or the wheel alignment (toe-in) is incorrect. The forward recognition camera optical axis can be corrected by decreasing the load on the vehicle or adjusting the toe-in.
 PROCEDURE
                     
                        
                           | 1.  | CHECK FORWARD RECOGNITION CAMERA INSTALLATION |  Click here
                        
                           
                              ![2022 MY Avalon Avalon HV [08/2021 -        ]; CRUISE CONTROL: FRONT CAMERA: INSTALLATION](/t3Portal/stylegraphics/info.gif)  HINT: If there is deformation or deviation in the forward recognition camera installation bracket, replace the windshield glass. OK:  No deformation or deviation in forward recognition camera installation bracket. 
                     
                        | 
                              
                                 | OK |  
                                 |   |  |  
                     
                        
                           | 2.  | CHECK VEHICLE OPERATING CONDITION |  HINT: Check if a condition which caused the forward recognition camera optical axis to become temporarily misaligned existed, such as if the vehicle was overloaded, towed or modified. OK:  Vehicle was not overloaded, towed or modified. 
                     
                        | 
                              
                                 | OK |  
                                 |   |  |  
                     
                        
                           | 3.  | CHECK WHEEL ALIGNMENT (TOE) |  
                     
                        
for Front Wheel Alignment: Click here
                              
                                 
                                    ![2022 MY Avalon Avalon HV [08/2021 -        ]; ALIGNMENT / HANDLING DIAGNOSIS: FRONT WHEEL ALIGNMENT: ADJUSTMENT](/t3Portal/stylegraphics/info.gif) 
for Rear Wheel Alignment: Click here
                              
                                 
                                    ![2022 MY Avalon Avalon HV [08/2021 -        ]; ALIGNMENT / HANDLING DIAGNOSIS: REAR WHEEL ALIGNMENT: ADJUSTMENT](/t3Portal/stylegraphics/info.gif)  OK:  Front and rear wheels are not misaligned (toe) 
                     
                        | 
                              
                                 | OK |  
                                 |   |  |  
                     
                        
                           | 4.  | PERFORM FORWARD RECOGNITION CAMERA ADJUSTMENT |  HINT: Forward recognition camera axis alignment can be performed by using either One Time Recognition, Sequential Recognition or Driving Adjustment. One Time Recognition: Click here
                        
                           
                              ![2022 MY Avalon Avalon HV [08/2021 -        ]; CRUISE CONTROL: FRONT CAMERA: TARGET ADJUSTMENT(ONE TIME RECOGNITION)](/t3Portal/stylegraphics/info.gif)  Sequential Recognition: Click here
                        
                           
                              ![2022 MY Avalon Avalon HV [08/2021 -        ]; CRUISE CONTROL: FRONT CAMERA: TARGET ADJUSTMENT(SEQUENTIAL RECOGNITION)](/t3Portal/stylegraphics/info.gif)  Driving Adjustment: Click here
                        
                           
                              ![2022 MY Avalon Avalon HV [08/2021 -        ]; CRUISE CONTROL: FRONT CAMERA: DRIVING ADJUSTMENT](/t3Portal/stylegraphics/info.gif)  
                     
                        | 
                              
                                 | NEXT |  
                                 |   |  |  (a) Clear the DTCs. Chassis > Front Recognition Camera > Clear DTCs
                     
                        
                           | NEXT |   | END |  
                     
                        
                           | 6.  | ADJUST WHEEL ALIGNMENT (TOE) |  
                     
                        
for Front Wheel Alignment: Click here
                              
                                 
                                    ![2022 MY Avalon Avalon HV [08/2021 -        ]; ALIGNMENT / HANDLING DIAGNOSIS: FRONT WHEEL ALIGNMENT: ADJUSTMENT](/t3Portal/stylegraphics/info.gif) 
for Rear Wheel Alignment: Click here
                              
                                 
                                    ![2022 MY Avalon Avalon HV [08/2021 -        ]; ALIGNMENT / HANDLING DIAGNOSIS: REAR WHEEL ALIGNMENT: ADJUSTMENT](/t3Portal/stylegraphics/info.gif)  
                     
                        | 
                              
                                 | NEXT |  
                                 |   |  |  
                     
                        
                           | 7.  | PERFORM FORWARD RECOGNITION CAMERA ADJUSTMENT |  HINT: Forward recognition camera axis alignment can be performed by using either One Time Recognition, Sequential Recognition or Driving Adjustment. One Time Recognition: Click here
                        
                           
                              ![2022 MY Avalon Avalon HV [08/2021 -        ]; CRUISE CONTROL: FRONT CAMERA: TARGET ADJUSTMENT(ONE TIME RECOGNITION)](/t3Portal/stylegraphics/info.gif)  Sequential Recognition: Click here
                        
                           
                              ![2022 MY Avalon Avalon HV [08/2021 -        ]; CRUISE CONTROL: FRONT CAMERA: TARGET ADJUSTMENT(SEQUENTIAL RECOGNITION)](/t3Portal/stylegraphics/info.gif)  Driving Adjustment: Click here
                        
                           
                              ![2022 MY Avalon Avalon HV [08/2021 -        ]; CRUISE CONTROL: FRONT CAMERA: DRIVING ADJUSTMENT](/t3Portal/stylegraphics/info.gif)  
                     
                        | 
                              
                                 | NEXT |  
                                 |   |  |  (a) Clear the DTCs. Chassis > Front Recognition Camera > Clear DTCs
                     
                        
                           | NEXT |   | END |  
                     
                        
                           | 9.  | PERFORM FORWARD RECOGNITION CAMERA ADJUSTMENT |  (a) Return the vehicle to normal operating conditions. (b) Perform forward recognition camera adjustment. HINT: Forward recognition camera axis alignment can be performed by using either One Time Recognition, Sequential Recognition or Driving Adjustment. One Time Recognition: Click here
                        
                           
                              ![2022 MY Avalon Avalon HV [08/2021 -        ]; CRUISE CONTROL: FRONT CAMERA: TARGET ADJUSTMENT(ONE TIME RECOGNITION)](/t3Portal/stylegraphics/info.gif)  Sequential Recognition: Click here
                        
                           
                              ![2022 MY Avalon Avalon HV [08/2021 -        ]; CRUISE CONTROL: FRONT CAMERA: TARGET ADJUSTMENT(SEQUENTIAL RECOGNITION)](/t3Portal/stylegraphics/info.gif)  Driving Adjustment: Click here
                        
                           
                              ![2022 MY Avalon Avalon HV [08/2021 -        ]; CRUISE CONTROL: FRONT CAMERA: DRIVING ADJUSTMENT](/t3Portal/stylegraphics/info.gif)  
                     
                        | 
                              
                                 | NEXT |  
                                 |   |  |  (a) Clear the DTCs. Chassis > Front Recognition Camera > Clear DTCs
                     
                        
                           | NEXT |   | END |  
                     
                        
                           | 11.  | REPLACE WINDSHIELD GLASS |  Click here
                        
                           
                              ![2022 MY Avalon Avalon HV [08/2021 -        ]; WINDOW / GLASS: WINDSHIELD GLASS: REMOVAL](/t3Portal/stylegraphics/info.gif)  
                     
                        | 
                              
                                 | NEXT |  
                                 |   |  |  
                     
                        
                           | 12.  | PERFORM FORWARD RECOGNITION CAMERA ADJUSTMENT |  HINT: Forward recognition camera axis alignment can be performed by using either One Time Recognition, Sequential Recognition or Driving Adjustment. One Time Recognition: Click here
                        
                           
                              ![2022 MY Avalon Avalon HV [08/2021 -        ]; CRUISE CONTROL: FRONT CAMERA: TARGET ADJUSTMENT(ONE TIME RECOGNITION)](/t3Portal/stylegraphics/info.gif)  Sequential Recognition: Click here
                        
                           
                              ![2022 MY Avalon Avalon HV [08/2021 -        ]; CRUISE CONTROL: FRONT CAMERA: TARGET ADJUSTMENT(SEQUENTIAL RECOGNITION)](/t3Portal/stylegraphics/info.gif)  Driving Adjustment: Click here
                        
                           
                              ![2022 MY Avalon Avalon HV [08/2021 -        ]; CRUISE CONTROL: FRONT CAMERA: DRIVING ADJUSTMENT](/t3Portal/stylegraphics/info.gif)  
                     
                        | 
                              
                                 | NEXT |  
                                 |   |  |  (a) Clear the DTCs. Chassis > Front Recognition Camera > Clear DTCs
                     
                        
                           | NEXT |   | END |  |