Diagnosis Procedure

When DCA system is active, the DCA system does not perform any control even through there is a vehicle ahead.

1. CHECK INFORMATION DISPLAY 
   1. Start the self-diagnosis mode of combination meter. Refer to Description .
   2. Check that the segment of information display is displayed normally.

   Is the inspection result normal?

   YES

   GO TO 2.

   NO

   Replace the combination meter.

2. VISUAL CHECK (1) 

   Check front bumper grille near the distance sensor (ICC sensor) for contamination and/or foreign materials.

   Do foreign materials interfere?

   YES

   GO TO 3.

   NO

   GO TO 4.

3. WIPE OUT DIRT AND FOREIGN MATERIALS 

   Wipe out the contamination and/or foreign materials from the front bumper grille near the distance sensor (ICC sensor).

   GO TO 8.

4. VISUAL CHECK (2) 

   Check distance sensor (ICC sensor) for cracks and/or scratches.

   Are there cracks?

   YES

   GO TO 6.

   NO

   GO TO 5.

5. PERFORM RADAR ALIGNMENT 
   1. Perform radar alignment. Refer to Description .
   2. Perform action test. Refer to Description .
   3. Check that the vehicle ahead detection performance improves.

   Does it improve?

   YES

   INSPECTION END

   NO

   GO TO 6.

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

   Does it improve?

   YES

   INSPECTION END

   NO

   GO TO 7.

7. REPLACE ADAS CONTROL UNIT 

   Replace the ADAS control unit. Refer to Removal and Installation .

   GO TO 8.

8. CHECK DCA SYSTEM 
   1. Erase "self-diagnosis result", and then perform "All DTC Reading" again after performing the action test. (Refer to Description  for action test.)
   2. Check that the DCA system is normal.

   INSPECTION END