Toyota Tacoma (2015-2018) Service Manual: Front Camera Module Incorrect Axial Gap (C1AA8,C1AA9)

Toyota Tacoma (2015-2018) Service Manual / Cruise Control / Lane Departure Alert System / Front Camera Module Incorrect Axial Gap (C1AA8,C1AA9)

DESCRIPTION

If the forward recognition camera detects that the forward recognition camera axis has deviated, DTC C1AA8 is stored. Also, if Forward Recognition Camera Axis Adjustment is not performed after installing the forward recognition camera, DTC C1AA9 is stored.

DTC No.	Detection Item	DTC Detection Condition	Trouble Area
C1AA8	Front Camera Module Incorrect Axial Gap	3 seconds after the ignition switch is turned to ON, the forward recognition camera detects forward recognition camera axis deviation.	Forward recognition camera Windshield glass Wheel alignment
C1AA9	Front Camera Module Beam Axis Not Adjusted	When the vehicle is being driven at a speed of 5 km/h (3 mph) or more 3 seconds after the ignition switch is turned to ON, the forward recognition camera detects that Forward Recognition Camera Axis Adjustment have not been completed.	Forward recognition camera adjustment has not been performed or has not been completed normally. Forward recognition camera

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. As a result, a DTC may be stored.
If the forward recognition camera has been replaced with a new one, be sure to perform Forward Recognition Camera Axis Adjustment.
Click here

PROCEDURE

1.	CHECK FOR DTCs (LANE DEPARTURE ALERT SYSTEM)

(a) Check if the stored DTCs are current DTCs.

(b) Check for DTCs.

Click here

Result	Proceed to
Current DTC C1AA8 is output	A
Current DTC C1AA9 is output	B
History DTC C1AA8 is output	C

GO TO STEP 11

GO TO STEP 13

2.	CHECK VEHICLE CONDITION

(a) Check the operating conditions of the vehicle.

HINT:

DTC C1AA8 may be stored if the forward recognition camera optical axis is temporarily misaligned due to the vehicle being overloaded.

Result	Proceed to
Vehicle is not overloaded or being towed	A
Vehicle is overloaded or being towed	B

GO TO STEP 9

3.	CHECK WHEEL ALIGNMENT

(a) Check the front wheel alignment (toe).

Click here HINT:

HINT:

DTC C1AA8 may be stored if the forward recognition camera optical axis is misaligned due to incorrect wheel alignment (toe).

Result	Proceed to
Front wheel is misaligned (toe)	A
Front wheel is not misaligned (toe)	B

GO TO STEP 7

4.	ADJUST WHEEL ALIGNMENT

(a) Adjust the alignment (toe) of the wheels.

Click here

5.	PERFORM FORWARD RECOGNITION CAMERA OPTICAL AXIS ADJUSTMENT

(a) Perform Recognition Camera/Target Position Memory and Recognition Camera Axis Adjust.

Click here

6.	CHECK FOR DTCs (LANE DEPARTURE ALERT SYSTEM)

(a) Clear the DTCs.

Click here (b) Make sure that the DTC detection conditions are met.

(b) Make sure that the DTC detection conditions are met.

HINT:

If the conditions are not met, the system cannot detect the malfunction.

Click here

Result	Proceed to
DTC C1AA8 is not output	A
DTC C1AA8 is output	B

END

REPLACE FORWARD RECOGNITION CAMERA

7.	CHECK FORWARD RECOGNITION CAMERA INSTALLATION

(a) Check the installation condition of the forward recognition camera.

Click here HINT:

HINT:

If the forward recognition camera bracket is deformed or misaligned, replace the windshield glass.

OK:

No deformation or misalignment in the forward recognition camera bracket.

GO TO STEP 5

8.	REPLACE WINDSHIELD GLASS

(a) Replace the windshield glass.

Click here

GO TO STEP 5

9.	PERFORM FORWARD RECOGNITION CAMERA OPTICAL AXIS ADJUSTMENT

(a) Return the vehicle to normal operating conditions.

(b) Perform Recognition Camera/Target Position Memory and Recognition Camera Axis Adjust.

Click here

10.	CHECK FOR DTCs (LANE DEPARTURE ALERT SYSTEM)

(a) Clear the DTCs.

Click here (b) Make sure that the DTC detection conditions are met.

(b) Make sure that the DTC detection conditions are met.

HINT:

If the conditions are not met, the system cannot detect the malfunction.

Click here

Result	Proceed to
DTC C1AA8 is not output	A
DTC C1AA8 is output	B

END

GO TO STEP 3

11.	PERFORM FORWARD RECOGNITION CAMERA OPTICAL AXIS ADJUSTMENT

(a) Perform Recognition Camera/Target Position Memory and Recognition Camera Axis Adjust.

Click here

12.	CHECK FOR DTCs (LANE DEPARTURE ALERT SYSTEM)

(a) Clear the DTCs.

Click here (b) Make sure that the DTC detection conditions are met.

(b) Make sure that the DTC detection conditions are met.

HINT:

If the conditions are not met, the system cannot detect the malfunction.

Click here

Result	Proceed to
DTC C1AA9 is not output	A
DTC C1AA9 is output	B

END

REPLACE FORWARD RECOGNITION CAMERA

13.	CLEAR DTCs

(a) Check for DTCs related to the forward recognition camera.

HINT:

If only history DTCs are stored, they may have been stored due to a temporarily condition such as overloading of the vehicle, and the system returned to normal when Recognition Camera/Target Position Memory and Recognition Camera Axis Adjust was performed.

(b) Clear the DTCs.

Click here

END

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