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. Description.
2. Perform ICC system action test. 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. Exploded View.
2. Adjust the laser beam aiming. 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. ( Description for action test.)
2. Check that the ICC system is normal.
- INSPECTION END