B2623

DTC Logic


DTC DETECTION LOGIC







DTC CONFIRMATION PROCEDURE


1. PERFORM DTC CONFIRMATION PROCEDURE

1.Select INTELLIGENT KEY of BCM using CONSULT.
2.Select INSIDE ANT DIAGNOSIS in WORK SUPPORT mode.
3.Perform inside key antenna (INSIDE ANT DIAGNOSIS) on WORK SUPPORT of INTELLIGENT KEY.
4.Check BCM for DTC.
Is inside key antenna DTC detected?
YES- Refer to "Diagnosis Procedure" .
NO- Inside key antenna (luggage room) is OK.


Diagnosis Procedure

Regarding Wiring Diagram information, refer to "Wiring Diagram" Intelligent Key System.

1. CHECK INSIDE KEY ANTENNA INPUT SIGNAL 1

1.Turn ignition switch OFF.
2.Check signal between BCM harness connector and ground using oscilloscope.





Is the inspection result normal?
YES- Replace BCM. Refer to "Removal and Installation" Service and Repair.
NO- GO TO 2.
Revision: March 20122013 Infiniti JX

2. CHECK INSIDE KEY ANTENNA CIRCUIT

1.Disconnect BCM connector and inside key antenna (luggage room) connector.
2.Check continuity between BCM harness connector and inside key antenna (luggage room) harness connector.





3.Check continuity between BCM harness connector and ground.





Is the inspection result normal?
YES- GO TO 3.
NO- Repair or replace harness.

3. CHECK INSIDE KEY ANTENNA INPUT SIGNAL 2

1.Replace inside key antenna (luggage room). (New antenna or other antenna)
2.Connect BCM connector and inside key antenna (luggage room) connector.
3.Check signal between BCM harness connector and ground using oscilloscope.





Is the inspection result normal?
YES- Replace inside key antenna (luggage room). Refer to "LUGGAGE ROOM : Removal and Installation" Luggage Room.
NO- Replace BCM. Refer to "Removal and Installation" Service and Repair.
Revision: March 20122013 Infiniti JX