Symptom 8: The System Does Not Detect the Vehicle Ahead at All

WARNING: This page is about a different car, the 2005 Infiniti QX56. However, it is still accessible from the selected car via links, so may be relevant.

VISUAL CHECK
1. With ignition switch turned ON (engine not started), check that all indicator lamps in ICC system display are continuously lit. (Check for a missing segment in preceding vehicle detection display.)
OK or NG
- OK: GO TO 2.
- NG: Check combination meter. Refer to "HOW TO PROCEED WITH TROUBLE DIAGNOSIS ".
VISUAL CHECK
- Check ICC sensor body window for contamination and foreign materials.
OK or NG
- OK: If any contamination or foreign materials are found, remove them. Perform ICC system running test. Refer to "ICC SYSTEM RUNNING TEST ".
- NG: GO TO 3.
VISUAL CHECK
- Check ICC sensor body window for cracks and scratches.
OK or NG
- OK: GO TO 4.
- NG:
  - Replace ICC sensor and perform laser beam aiming adjustment. Refer to "ICC SENSOR ".
  - Perform ICC system running test. Refer to "ICC SYSTEM RUNNING TEST ". Then perform self-diagnosis of ICC system again.
ADJUST ICC SENSOR
- After performing laser beam aiming adjustment, perform ICC system running test. Refer to "ICC SYSTEM RUNNING TEST ". Check that preceding vehicle detection performance has been improved.
OK or NG
- OK: Inspection End.
- NG:
  - Replace ICC sensor and perform laser beam aiming adjustment. Refer to "ICC SENSOR ".
  - Perform ICC system running test. Refer to "ICC SYSTEM RUNNING TEST ". Then perform self-diagnosis of ICC system again.