Component Description
| Component | Reference |
|---|---|
| BCM | BCM |
| ECM | ECM |
| IPDM E/R | IPDM E/R |
| NATS antenna amp. | NATS ANTENNA AMP. |
| TCM (CVT models) | TCM |
| Clutch interlock switch (M/T models) | CLUTCH INTERLOCK SWITCH |
| Combination meter | COMBINATION METER |
| Door switch | DOOR SWITCH |
| Ignition key | IGNITION KEY |
| Park/neutral position switch (M/T models) | PARK/NEUTRAL POSITION SWITCH |
| Remote keyless entry receiver | REMOTE KEYLESS ENTRY RECEIVER |
| Security indicator lamp | SECURITY INDICATOR LAMP |
| Starter control relay | STARTER CONTROL RELAY |
| Starter relay | STARTER RELAY |
| Stop lamp switch | STOP LAMP SWITCH |
| Transmission range switch (CVT models) | TRANSMISSION RANGE SWITCH |
SYSTEM DESCRIPTION
NISSAN VEHICLE IMMOBILIZER SYSTEM-NATS [NVIS (NATS)] has the following immobilizer functions
- NVIS (NATS) shows high anti-theft performance to prevent engine from starting by anyone other than the owner who has the registered ignition key.
- The ignition key has NVIS (NATS) ID and only ignition key which has the same ID as the ID registered in BCM and ECM can start engine. This makes high anti-theft performance to prevent the vehicle from being stolen using a copied ignition key.
- Security indicator lamp always blinks when ignition switch is in any position other than ON. Therefore, NVIS (NATS) warns outsiders that the vehicle is equipped with the anti-theft system.
- If the system detects a malfunction, security indicator lamp illuminates when ignition switch is turned ON.
- If the owner requires, ignition key ID can be registered for up to 5 keys.
- During trouble diagnosis, when additional ignition key is needed, or when the following components are replaced, the ID registration is required. BCM Ignition key
- Possible symptom of NVIS (NATS) malfunction is "Engine cannot start". The engine also can not be started because of other than the NVIS (NATS) malfunction, so start the trouble diagnosis according to " «WORK FLOW»(ref-621399-S23009922972014061000000) ".
- If ECM other than Genuine NISSAN parts is installed, the engine cannot be started. For ECM replacement procedure, refer to " «REMOVAL AND INSTALLATION»(/nissan/juke/i-facelift-2014-2019/remont/testing-diagnostics/#engine-control-system-diagnostic-codes-symptom-tests) ".
OPERATION WHEN IGNITION KEY IS INSERTED INTO IGNITION KEY CYLINDER
- When ignition switch is turned ON, BCM activates NATS antenna amp. to start NVIS (NATS) ID verification with the ignition key (transponder is integrated).
- BCM receives the NVIS (NATS) ID signal from ignition key via NATS antenna amp. and verifies it with the registered ID.
- When the NATS ID verification result is OK, BCM performs the ID verification between BCM and ECM.
- When the verification result is OK, BCM transmits the verification OK signal to ECM, and then ECM can start the engine.
- When the ignition switch is turned to the START position, BCM transmits the starter request signal to IPDM E/R.
Scheme 228
VEHICLE SECURITY SYSTEM: System Description
- The vehicle security system has two alarm functions (theft warning alarm and panic alarm), and reduces the possibility of a theft or mischief by activating horns and headlamps intermittently.
- The panic alarm does not start when the theft warning alarm is activating, and the panic alarm stops when the theft warning alarm is activated. The priority of the functions are as per the following. Priority Function 1 Theft warning alarm 2 Panic alarm
ECM: Description
When replacing ECM, the following procedure must be performed. (For details, refer to " ECM: WORK PROCEDURE ".)
PROGRAMMING OPERATION
Note. After replacing with a blank ECM, programming is required to write ECM information. Be sure to follow the procedure to perform the programming.
Description
ECM forcibly switches to the mode that inhibits engine start, when engine start operation is performed 5 times or more while communication between ECM and BCM is not normal, or when engine start operation is performed 5 times or more using the unregistered ignition key.
BCM performs ID verification between BCM and dongle unit.
When verification result is OK, BCM permits cranking.
Security indicator lamp does not blink when ignition switch is in a position other than ON.
Note. Before performing the diagnosis, check "Work Flow". Refer to " WORK FLOW ". Check that vehicle is under the condition shown in "CONDITIONS OF VEHICLE (OPERATING CONDITIONS)" before starting diagnosis, and check each symptom.
KEY FOB: Description
Armed phase is not activated when all doors are locked using keyfob.
Note. Check that vehicle is under the condition shown in "CONDITIONS OF VEHICLE (OPERATING CONDITIONS)" before starting diagnosis, and check each symptom.
DOOR KEY CYLINDER: Description
ARMED phase is not activated when all doors are locked by door key cylinder operation using ignition key.
Note. Check that vehicle is under the condition shown in "Conditions of vehicle" before starting diagnosis, and check each symptom.
DOOR LOCK AND UNLOCK SWITCH: Description
Armed phase is not activated when all doors are locked using door lock and unlock switch.
Note. Check that vehicle is under the condition shown in "CONDITIONS OF VEHICLE (OPERATING CONDITIONS)" before starting diagnosis, and check each symptom.
Alarm does not operate when alarm operating condition is satisfied.
Note. Check that vehicle is under the condition shown in "CONDITIONS OF VEHICLE (OPERATING CONDITIONS)" before starting diagnosis, and check each symptom.
See also:
• REMOVAL AND INSTALLATION