COMPONENT PARTSSEC-121
< SYSTEM DESCRIPTION > [WITHOUT INTELLIGENT KEY SYSTEM]
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NISSAN VEHICLE IMMOBILIZER SYSTEM-NAT S : CVT Shift Selector (Park Position
Switch)
INFOID:0000000012430443
Park position switch detects that CVT shift selector is in the P (Park) position and then transmits the signal to
BCM and IPDM E/R.
BCM confirms the CVT shift selector position with the following 5 signals:
• P (Park) position signal from CVT shift selector (park position switch)
• P/N position signal from TCM
• P (Park) position signal from IPDM E/R (CAN)
• P/N position signal from IPDM E/R (CAN)
• P/N position signal from TCM (CAN)
IPDM E/R confirms the CVT shift selector position with the following 3 signals:
• P (Park) position signal from CVT shift selector (park position switch)
• P/N position signal from TCM
• P/N position signal from BCM (CAN)
NISSAN VEHICLE IMMOBILIZER SYSTEM-NATS : BCMINFOID:0000000012430444
BCM controls ENGINE START FUNCTION, NISSAN VEHICLE IMMOBILIZER SYSTEM-NATS (NATS) and
VEHICLE SECURITY SYSTEM.
BCM performs the ID verification between BCM and key. If t he ID verification result is OK, ignition switch oper-
ation is available.
Then, when the power supply position is turned ON, BCM performs ID verification between BCM and ECM. If
the ID verification result is OK, ECM can start engine.
NISSAN VEHICLE IMMOBILIZER SYSTEM-NATS : ECMINFOID:0000000012430445
ECM controls the engine.
When power supply position is turned ON, BCM starts communication with ECM and performs the ID verifica-
tion between BCM and ECM.
If the verification result is OK, the engine can start. If the verification result is invalid, the engine can not start.
NISSAN VEHICLE IMMOBILIZER SYSTEM-NATS : IPDM E/RINFOID:0000000012430446
IPDM E/R has the starter control relay inside. Starter control relay is used for the engine starting function.
IPDM E/R controls this relay while communicating with BCM.
NISSAN VEHICLE IMMOBILIZER SYSTEM-NATS : Combination MeterINFOID:0000000012430447
Combination meter transmits the vehicle speed signal to BCM via CAN communication.
BCM also receives the vehicle speed signal from ABS ac tuator and electric unit (control unit) via CAN commu-
nication. BCM compares both signals to detect the vehicle speed.
10. Front door switch LH Door switch detects door open/close condi-
tion and then transmits ON/OFF signal to
BCM.
11. Rear door switch LH Door switch detects door open/close condi-
tion and then transmits ON/OFF signal to
BCM.
12. Ignition switch Input ignition switch ON/OFF condition to
BCM.
13. NATS antenna amp. ID verification is performed between the BCM
and the transponder integrated into the key
via the NATS antenna amp.
14. Remote keyless entry receiver Remote keyless entry receiver receives but-
ton operation signal and key ID signal then
transmits them to the BCM.
No.
Component Function
Revision: August 2015 2016 Versa Note
cardiagn.com
SEC-122
< SYSTEM DESCRIPTION >[WITHOUT INTELLIGENT KEY SYSTEM]
COMPONENT PARTS
NISSAN VEHICLE IMMOBILIZER SYSTEM-NATS : Door Switch
INFOID:0000000012430448
Door switch detects door open/close conditi on and then transmits ON/OFF signal to BCM.
NISSAN VEHICLE IMMOBILIZER SYSTEM-NAT S : Remote Keyless Entry Receiver
INFOID:0000000012430449
Remote keyless entry receiver receives each button operation signal and electronic key ID signal from key
and then transmits the signal to BCM.
NISSAN VEHICLE IMMOBILIZER SYSTEM-NATS : Security Indicator Lamp
INFOID:0000000012430450
Security indicator lamp is located on combination meter.
Security indicator lamp blinks when power supply positi on is any position other than ON to warn that NISSAN
VEHICLE IMMOBILIZER SYSTEM-NATS (NATS) is on board.
NISSAN VEHICLE IMMOBILIZER SY STEM-NATS : Starter RelayINFOID:0000000012430451
Engine starting system functions by controlling starter control relay.
Starter control relay is controlled by IPDM E/R on request from BCM.
IPDM E/R transmits starter control relay statu signal to BCM via CAN communication.
NISSAN VEHICLE IMMOBILIZER SY STEM-NATS : Stop Lamp SwitchINFOID:0000000012430452
Stop lamp switch detects that brake pedal is depressed, and then transmits the signal to BCM.
NISSAN VEHICLE IMMOBILIZER SYSTEM-NATS : Transmission Range Switch
INFOID:0000000012430453
Transmission range switch is integrated in CVT assembly, and detects the CVT shift selector position.
TCM receives the transmission range switch signal and then transmits the P/N position signal to BCM and
IPDM E/R.
BCM confirms the CVT shift selector position with the following 5 signals:
• P (Park) position signal from CVT shift selector (park position switch)
• P/N position signal from TCM
• P (Park) position signal from IPDM E/R (CAN)
• P/N position signal from IPDM E/R (CAN)
• P/N position signal from TCM (CAN)
IPDM E/R confirms the CVT shift sele ctor position with the following 3 signals:
• P (Park) position signal from CVT shift selector (park position switch)
• P/N position signal from TCM
• P/N position signal from BCM (CAN)
Revision: August 2015 2016 Versa Note
cardiagn.com