The NISSAN Vehicle Immobilizer System will not allow the engine to start without the use of a registered key.
Never leave these keys in the vehicle.
FCC Notice:
For USA:
This device complies with part 15 of the
FCC Rules. Operation is subject to the following
two conditions: (1) This device may
not cause harmful interference, and (2) this
device must accept any interference received,
including interference that may
cause undesired operation.
NOTE: Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment.
For Canada: This device complies with Industry Canada license-exempt RSS standard(s). Operation is subject to the following two conditions: (1) this device may not cause interference, and (2) this device must accept any received, including interference that may cause undesired operation of the device.

Security indicator light
The security indicator light blinks whenever the ignition switch is placed in the OFF, LOCK or ACC (if so equipped) position. This function indicates the NISSAN Vehicle Immobilizer System is operational.
If the NISSAN Vehicle Immobilizer System is malfunctioning, the light will remain on while the ignition switch is placed in the ON position.
If the light still remains on and/or the engine will not start, see a NISSAN dealer for NISSAN Vehicle Immobilizer System service as soon as possible. Please bring all registered keys that you have when visiting your NISSAN dealer for service.
Vehicle security system
Windshield wiper and washer switchP0453 EVAP control system pressure sensor
DTC Description
DTC DETECTION LOGIC
DTC No.
CONSULT screen terms
(Trouble diagnosis content)
DTC detecting condition
P0453
EVAP SYS PRES SEN
(Evaporative emission system pressure
sensor/switch high)
An excessively high voltage from the sensor is sent to ECM.
...
B0020 side airbag module IH
Description
DTC B0020 FRONT LH SIDE AIR BAG MODULE
The front LH side air bag module is wired to the air bag diagnosis sensor
unit. The air bag diagnosis sensor
unit will monitor for opens and shorts in detected lines to the front LH side
air bag module.
PART LOCATION
Refer to SRC-6, "C ...
B2268 water temp
Description
The engine coolant temperature signal is transmitted from ECM to the
combination meter via CAN communication.
DTC Logic
DTC DETECTION LOGIC
DTC
CONSULT
Detection Condition
Possible Cause
B2268
WATER TEMP
[B2268]
ECM continuously tra ...