Error code 02/03/04

WARNING: This page is about a different car, the 2017 Mazda CX-9. However, it is still accessible from the selected car via links, so may be relevant.

Step	Inspection	Action
1	VERIFY TARGET AND TARGET SETTING ENVIRONMENT Verify the following: Is there any dirt or damage on the windshield, FSC lens, and FSC cover? Does direct sunlight penetrate the camera or target surroundings? Is the camera or target surroundings shadowed? Is there any dirt, cracks, damage, or wrinkling on the target and board? Is the target produced in white and black? Is there any obstruction or moving object within the shaded area indicated in Step 4 for aiming? Is the target produced as indicated in the procedure? Does the target move during aiming? Is there any malfunction?	Yes	Repair the malfunctioning part and go to the next step.
1		No	Go to the next step.
2	PERFORM FSC AIMING Perform the FSC aiming. Is the FSC aiming completed normally?	Yes	The FSC aiming is completed.
2		No	Error code 02 or 03 or 04 is displayed Go to the next step. Code other than error code 02 or 03 or 04 is displayed Go to the procedure for the displayed error code.
3	PERFORM FSC AIMING WITH ACTUAL MEASURED VALUE OF VEHICLE HEIGHT Measure the vehicle height according to the actual measurement procedure for the wheel house height. (See WHEEL HOUSE HEIGHT MEASUREMENT PROCEDURE .) Input the actually measured value and perform the FSC aiming. Is the FSC aiming completed normally?	Yes	The FSC aiming is completed.
3		No	Go to the next step.
4	VERIFY DTC Perform the DTC inspection for the FSC. (See DTC INSPECTION [FORWARD SENSING CAMERA (FSC)] .) Is the DTC displayed?	Yes	Go to the applicable DTC inspection. (See DTC TABLE [FORWARD SENSING CAMERA (FSC)] .) After the diagnostic procedure is completed, perform the FSC aiming.
4		No	Re-perform the FSC aiming, and replace the FSC if the FSC aiming is not completed normally. (See FORWARD SENSING CAMERA (FSC) REMOVAL/INSTALLATION .)