Frequently Cannot Detect the Vehicle Ahead / Detection Zone Is Short

FREQUENTLY CANNOT DETECT THE VEHICLE AHEAD / DETECTION ZONE IS SHORT

Description

The detection function may become unstable in the following cases.
- When radar reflections from the vehicle ahead is interrupted.
- When driving a road with extremely sharp corners.
- When the sensor cannot detect a vehicle ahead while the vehicle ahead passes a hill or valley.


Diagnosis Procedure


1. VISUAL CHECK (1)

Check the contamination and foreign matter on the ICC sensor area of the front bumper.
Do foreign matter adhere?
YES- GO TO 3.
NO- GO TO 2.

2. VISUAL CHECK (2)

1.Remove the front bumper. Refer to "Removal and Installation" Removal and Installation.
2.Check ICC sensor for contamination and foreign matter.
Do foreign matter adhere?
YES- GO TO 3.
NO- GO TO 4.

3. WIPE OUT DIRT AND FOREIGN MATERIALS

Wipe out the contamination and foreign matter in the area around the ICC sensor.
- GO TO 8.

4. VISUAL CHECK (3)

Check ICC sensor for cracks and scratches.
Are there any cracks or scratches?
YES- GO TO 6.
NO- GO TO 5.

5. ADJUST RADAR ALIGNMENT

1.Install the front bumper. Refer to "Removal and Installation" Removal and Installation.
2.Adjust the radar alignment. Refer to "Description" Description.
3.Perform ICC system action test. Refer to "Description" Description.
4.Check that the vehicle ahead detection performance improves.
Does it improve?
YES- INSPECTION END
NO- GO TO 6.

6. REPLACE ICC SENSOR

1.Replace the ICC sensor. Refer to "Removal and Installation" Removal and Installation.
2.Install the front bumper. Refer to "Removal and Installation" Removal and Installation.
3.Adjust the radar alignment. Refer to "Description" Description.
4.Perform ICC system action test. Refer to "Description" Description.
5.Check that the vehicle ahead detection performance improves.
Does it improve?
YES- INSPECTION END
NO- GO TO 7.

7. REPLACE ADAS CONTROL UNIT

Replace ADAS control unit. Refer to "Removal and Installation" Removal and Installation.
Revision: March 20122013 Infiniti JX
- GO TO 8.

8. CHECK ICC SYSTEM

1.Erase the self-diagnosis results, and then perform "All DTC Reading" again after performing the action test. (Refer to "Description" Description for action test.)
2.Check that the ICC system is normal.
- INSPECTION END
Revision: March 20122013 Infiniti JX