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 the reflector of the vehicle ahead is deficient/ not clean enough to reflect the radar.
- When driving a road with extremely sharp corners.
- When the sensor cannot detect the reflector of the vehicle ahead as the vehicle ahead is passing a hill or passing the peak.


Diagnosis Procedure


1. VISUAL CHECK (1)

Check ICC sensor integrated unit body window for contamination and/or foreign materials.
Do foreign materials adhere?
YES- GO TO 2.
NO- GO TO 3.

2. REMOVE DIRT AND FOREIGN MATERIALS

Remove the contamination and foreign materials from the ICC sensor integrated unit body window.
- GO TO 6.

3. VISUAL CHECK (2)

Check ICC sensor integrated unit body window for cracks and scratches.
Are there any cracks or scratches?
YES- GO TO 5.
NO- GO TO 4.

4. ADJUST LASER BEAM AIMING

1.Adjust the laser beam aiming. Refer to "LASER BEAM AIMING ADJUSTMENT : Description" Description.
2.Perform ICC system action test. Refer to "ACTION TEST : Description" Description.
3.Check that the vehicle ahead detection performance improves.
Does it improve?
YES- INSPECTION END
NO- GO TO 5.

5. REPLACE ICC SENSOR INTEGRATED UNIT

1.Replace the ICC sensor integrated unit. Refer to "Exploded View" Exploded View.
2.Adjust the laser beam aiming. Refer to "LASER BEAM AIMING ADJUSTMENT : Description" Description.
- GO TO 6.

6. CHECK ICC SYSTEM

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