Symptom 7 ICC System Frequently Can Not Detect the Vehicle Ahead/ Detection Zone Is Short

TROUBLE DIAGNOSIS FOR SYMPTOMS


Symptom 7 ICC System Frequently Cannot Detect the Vehicle Ahead/ Detection Zone Is Short

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.
1.VISUAL CHECK 1
Check ICC sensor integrated unit body window for contamination and foreign materials.
Is it found?
YES - 1. If any, remove them.
2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system again.
NO - GO TO 2.
2.VISUAL CHECK 2
Check ICC sensor integrated unit body window for cracks and scratches.
Is it found?
YES - 1. Replace ICC sensor integrated unit, and adjust laser beam aiming.
2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system again.
NO - GO TO 3.
3.ADJUST LASER BEAM AIMING
1. Adjust laser beam aiming. Outline Preparation Outline of Adjustment Procedure Setting the ICC Target Board.
2. Perform ICC system running test. Check if preceding vehicle detection performance has been improved.
Is it improved?
YES - INSPECTION END
NO - 1. Replace ICC sensor integrated unit, and adjust laser beam aiming.
2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system again.