Toyota Yaris: Front Camera System / Front Recognition Camera Optical Axis Misalignment Malfunction (C1AA800)
DESCRIPTION
The 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 | When 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, after 2 seconds have elapsed since the ignition switch was turned ON. |
|
CAUTION / NOTICE / HINT
NOTICE:
- When replacing the forward recognition camera, always 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
Sequential Recognition: Click here
Driving Adjustment: Click here
- 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 |
(a) Check the installation condition of the forward recognition camera.
Click here
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.
| NG |
 | GO TO STEP 11 |
|
| 2. | CHECK VEHICLE OPERATING CONDITION |
(a) Check the operating conditions of the vehicle.
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.
| NG |
 | GO TO STEP 9 |
|
| 3. | CHECK WHEEL ALIGNMENT |
(a) Check the front and rear wheel alignment (toe).
-
for front wheel alignment: Click here
-
for rear wheel alignment: Click here
| Result | Proceed to |
|---|---|
| Front and rear wheels are not misaligned (toe) | A |
| Front or rear wheel is misaligned (toe) | B |
| B |
 | GO TO STEP 6 |
|
| 4. | PERFORM FORWARD RECOGNITION CAMERA ADJUSTMENT |
(a) 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
Sequential Recognition: Click here
Driving Adjustment: Click here
|
| 5. | CLEAR DTC |
(a) Clear the DTCs.
Chassis > Front Recognition Camera > Clear DTCs| NEXT |
 | END |
| 6. | ADJUST WHEEL ALIGNMENT |
(a) Adjust the alignment (toe) of the wheels.
-
for front wheel alignment: Click here
-
for rear wheel alignment: Click here
|
| 7. | PERFORM FORWARD RECOGNITION CAMERA ADJUSTMENT |
(a) 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
Sequential Recognition: Click here
Driving Adjustment: Click here
|
| 8. | CLEAR DTC |
(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
Sequential Recognition: Click here
Driving Adjustment: Click here
|
| 10. | CLEAR DTC |
(a) Clear the DTCs.
Chassis > Front Recognition Camera > Clear DTCs| NEXT |
 | END |
| 11. | REPLACE WINDSHIELD GLASS |
HINT:
Click here
|
| 12. | PERFORM FORWARD RECOGNITION CAMERA ADJUSTMENT |
(a) 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
Sequential Recognition: Click here
Driving Adjustment: Click here
|
| 13. | CLEAR DTC |
(a) Clear the DTCs.
Chassis > Front Recognition Camera > Clear DTCs| NEXT |
 | END |
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Supplemental Restraint System (SRS) Precautions
The front and side supplemental restraint systems (SRS) include different types of air bags. Please verify the different types of air bags which are equipped on your vehicle by locating the “SRS AIRBAG” location indicators. These indicators are visible in the area where the air bags are installed.
The air bags are installed in the following locations:
The steering wheel hub (driver air bag) The front passenger dashboard (front passenger air bag) The outboard sides of the front seatbacks (side air bags) The front and rear window pillars, and the roof edge along both sides (curtain air bags)