Diagnosis Procedure

WARNING: This page is about a different car, the 2018 Nissan Maxima. However, it is still accessible from the selected car via links, so may be relevant.

The detection function may become unstable in the following cases.

When radar reflections from the vehicle ahead are interrupted.
When driving on a road with extremely sharp corners.
When the sensor cannot detect a vehicle ahead while the vehicle ahead passes a hill or valley.

VISUAL CHECK (1)
Check the contamination and foreign matter on the distance sensor (ICC sensor) area.

Is foreign matter present?

YES

GO TO 3

NO

GO TO 2
VISUAL CHECK (2)
Check distance sensor (ICC sensor) for contamination and foreign matter.

Is foreign matter present?

YES

GO TO 3

NO

GO TO 4
WIPE OUT DIRT AND FOREIGN MATERIALS
Wipe out the contamination and foreign matter in the area around the distance sensor (ICC sensor).

GO TO 7
VISUAL CHECK (3)
Check distance sensor (ICC sensor) for cracks and scratches.

Are there any cracks or scratches?

YES

GO TO 6

NO

GO TO 5
ADJUST RADAR ALIGNMENT
1. Adjust the radar alignment. Refer to Description .
2. Perform ICC system action test. Refer to Description .
3. Check that the vehicle ahead detection performance improves.
Does it improve?

YES

Inspection End.

NO

GO TO 6
REPLACE DISTANCE SENSOR (ICC SENSOR)
1. Replace the distance sensor (ICC sensor). Refer to Removal and Installation .
2. Adjust the radar alignment. Refer to Description .
3. Perform ICC system action test. Refer to Description .
4. Check that the vehicle ahead detection performance improves.
Does it improve?

YES

Inspection End.

NO

GO TO 7
CHECK ICC SYSTEM
CONSULT
1. Erase the "Self Diagnostic Result", and then select "Self Diagnostic Result" mode again after performing the action test. (Refer to Description for action test.)
2. Check that the ICC system is normal.
Inspection End.