Security Control System (Diagnostics)

WARNING: This page is about a different car, the 2020 Infiniti Q50. However, it is still accessible from the selected car via links, so may be relevant.

CHECK INTELLIGENT KEY SYSTEM SYMPTOM TABLE
Check Intelligent Key system symptom table.

Refer to Symptom Table .

GO TO 2.
PERFORM SELF-DIAGNOSIS RESULT
Select "Self Diagnostic Result" mode of "BCM", and check if DTC is detected.

Is DTC detected?

YES

Perform the trouble diagnosis for the detected DTC.

NO

GO TO 3.
CHECK "ENGINE START BY I-KEY" SETTING IN "WORK SUPPORT"
1. Select "INTELLIGENT KEY" of "BCM" using CONSULT.
2. Select "ENGINE START BY I-KEY" of "WORK SUPPORT" mode.
3. Check "ENGINE START BY I-KEY" in "WORK SUPPORT".
Is the inspection result normal?

YES

GO TO 4.

NO

Set "On" in "ENGINE START BY I-KEY".
CHECK INSIDE KEY ANTENNA
Use SIGNAL TECH II to check each inside key antenna. For the inspection method and how to use SIGNAL TECH II, refer to "NISSAN/INFINITI SIGNAL TECH II USER GUIDE".

Is the inspection result normal?

YES

GO TO 5.

NO

Repair or replace malfunctioning parts.
REPLACE BCM
1. Replace BCM. Refer to BCM : Removal & Installation .
2. Check operation after replacement.
Is the inspection result normal?

YES

INSPECTION END

NO

Check intermittent incident. Refer to Inspection .