Diagnosis Procedure
Regarding Wiring Diagram information, refer to BCS "Wiring Diagram".
1.CHECK FUSES AND FUSIBLE LINK
Check that the following fuses and fusible link are not blown. 
Is the fuse blown?
YES >> Replace the blown fuse or fusible link after repairing the affected circuit.
NO >> GO TO 2.
2.CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BCM connectors.
3. Check voltage between BCM connector and ground.
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair harness or connector.
3.CHECK GROUND CIRCUIT
Check continuity between BCM connector and ground. 
Is the inspection result normal?
YES >> Inspection End.
NO >> Repair harness or connector.
B2196 Dongle unitDescription BCM performs ID verification between BCM and dongle unit. When verification result is OK, BCM permits cranking. ...

Description Vehicle security indicator is built in combination meter. NATS (Nissan Anti-Theft System) condition is indicated by blink or illumination of vehicle security indicator. ...
Automatic door lock/unlock function
AUTOMATIC DOOR LOCK/UNLOCK FUNCTION
: System Diagram
AUTOMATIC DOOR LOCK/UNLOCK FUNCTION
: System Description
DOOR LOCK FUNCTION
The door lock and unlock switch (driver side) is built into power window
main switch.
The door lock and unlock switch (passenger side) is on door trim. ...
NATS antenna AMP
Removal and Installation
NOTE:
If NATS antenna amp. is not installed correctly, NVIS (NATS) system
will not operate properly and "SELFDIAG
RESULTS" on CONSULT screen will show "LOCK MODE" or "CHAIN OF IMMU-KEY".
Initialization is not necessary when only th ...