DCA

FREQUENTLY CANNOT DETECT THE VEHICLE AHEAD / DETECTION ZONE IS SHORT


Description

Symptom check: Detection function may become unstable under the following conditions.
- When the reflector of vehicle ahead is broken or dirty.
- When the vehicle is driving on a curve such as S-curve where the curvature changes.
- When the vehicle is driving on up-and-down road or passing the peak or foot of slope or passing the break of the inclination of hill.




FREQUENTLY CANNOT DETECT THE VEHICLE AHEAD / DETECTION ZONE IS SHORT


Diagnosis Procedure

1.VISUAL CHECK (1)
Check ICC sensor integrated unit body window for contamination and foreign materials.
Do foreign materials adhere?
YES - GO TO 2.
NO - GO TO 3.
2.WIPE OUT DIRT AND FOREIGN OBJECTS
Wipe out the contamination and/or 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/or scratches.
Are there cracks?
YES - GO TO 5.
NO - GO TO 4.
4.LASER BEAM AIMING ADJUSTMENT
1. Adjust the laser beam aiming. Description.
2. Perform action test. DCA.
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 DCA SYSTEM
1. Erase "self-diagnosis result", and then perform "All DTC Reading" again after performing the action test.
( DCA for action test.)
2. Check that the DCA system is normal.
- INSPECTION END