Diagnosis Procedure

Check the contamination and foreign matter on the distance sensor area of the front bumper.

Does contamination or foreign materials contact?

YES 

Wipe out the contamination and foreign matter on the distance sensor area of the front bumper.

NO 

GO TO STEP 2. 

1. Remove the front bumper. Refer to REMOVAL AND INSTALLATION .
2. Check distance sensor for contamination and foreign matter.

Does contamination or foreign matter contact?

YES 

Wipe out the contamination and foreign matter from the distance sensor.

NO 

GO TO STEP 3. 

Check distance sensor for cracks and scratches.

Is it found?

YES 

Replace the distance sensor. Refer to REMOVAL AND INSTALLATION .

NO 

GO TO STEP 4. 

1. Adjust the radar alignment with CONSULT. Refer to DESCRIPTION .
2. Perform FEB system action test to check the operation status. Refer to DESCRIPTION .
3. Perform "All DTC Reading".
4. Check the "C1A16" is detected in "Self Diagnostic Result" mode of "LASER/RADAR".

Is "C1A16" detected?

YES 

Replace the distance sensor. Refer to REMOVAL AND INSTALLATION .

NO 

GO TO STEP 5. 

1. Ask if there is any trace of contamination or foreign materials contacting distance sensor area of the front bumper.
2. Ask if distance sensor area of the front bumper was frosted during driving or if vehicle was driven in snow.
3. Ask if distance sensor area of the front bumper was temporarily fogged. (Windshield glass may also tend to fog, etc.)

Is any of above conditions seen?

YES 

Explain to the customer about the difference between the contamination detection function and the indication when the malfunction is detected and tell them "This is not malfunction".

NO 

Replace the distance sensor. Refer to REMOVAL AND INSTALLATION .