2003 NISSAN TEANA trunk

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INTELLIGENT KEY SYSTEM

INTELLIGENT KEY SYSTEMPFP:285e2
Component Parts and Harness Connector LocationBIS000WY
1. BCM
M3, M4, M52. IPDM E/R
E8,E93. A: Steering lock unit M21
B: Ignition knob switch, key switch
and key lock solenoid M20
4. Front door lock assembly (driver
side) (door unlock sensor) D245. Trunk lid lock assembly (trunk room
lamp switch) T76. Front door switch (driver side) B10
7. Rear door switch LH B14 8. Intelligent Key unit M31
(View with glove box removed)
PIIB8791E

INTELLIGENT KEY SYSTEM
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9. Antenna
10. Outside key antenna and front
door request switch (driver side)
D2511. Trunk open request switch
T212. Intelligent Key warning buzzer
(driver side) D22
(View with inside of driver door)
13. Intelligent Key warning buzzer
(Trunk room) B222
(View with trunk room RH)14. Unified meter and A/C AMP.
M41, M42
(View with A/C & AV switch removed)
PIIB8792E

BL-70
INTELLIGENT KEY SYSTEM

System DescriptionBIS000WZ

The Intelligent Key system is a system that makes it possible to lock and unlock the door locks (door lock
function) and start the engine (engine start function) by carrying around the Intelligent Key, which operates
based on the results of electrical key-ID verification using two-way communications between the Intelli-
gent Key and the vehicle

Operation of the remote control buttons on the Intelligent Key also provides the same functions as the
remote keyless entry system. (Remote keyless entry functions)

As an ignition key warning function, when a door lock is locked or unlocked with request switch or remote
controller button operation, the hazard lamps flash and the Intelligent Key warning buzzer sounds.

Even if the Intelligent Key battery runs down, the door locks can be locked and unlocked and the engine
started with the mechanical key built into the Intelligent Key.

If an Intelligent Key is lost, a new Intelligent Key can be registered. A maximum of 4 Intelligent Keys can
be registered.

It has been made possible to diagnose the system, change the function setting and register an Intelligent
Key with the CONSULT-II.
DOOR LOCK/UNLOCK, TRUNK OPEN FUNCTION
Operation Description

When the driver door, passenger door, or trunk open request switch is pressed, Intelligent Key unit sends
a request signal from the outside key antenna corresponding to the pressed request switch, key-ID verifi-
cation is performed using two-way communication with Intelligent Key, and if ID is successfully verified, a
door lock/unlock request signal is sent to BCM using CAN communication to lock/unlock the door lock.

When door is locking, door is unlocked, when door is unlocking, door is locked.

When door lock is locked/unlocked by door request switch operation, hazard lamps flash and Intelligent
Key warning buzzer sounds.

With the locking operation of door request switch, door lock actuators of all door are locked.

When trunk open request switch is pushed, trunk lid is opened.
Operation Condition
Auto Door Lock Function
After the door request switch in the driver or passenger door is operated and the vehicle door locks are
unlocked, all the doors are automatically locked unless the mechanical key is inserted into the ignition knob,
the ignition knob is pressed, any door request switch is pressed, any one of the doors is opened, or an Intelli-
gent Key remote control button is operated within 2 minutes.
Hazard Reminder Function
The hazard lamps are flashed when the door lock is locked or unlocked by door request switch operation.
When ignition switch ON or any door is opened, key reminder function is not operate.
Request switch operation Operating conditions
Request switch (Driver side) When all the conditions below are met

All doors are closed (for lock operation)

Remove mechanical key from ignition key cylinder (key switch: OFF)

Ignition knob is not press (ignition knob switch: OFF)

The Intelligent Key is in the outside key antenna detection area for the door for which
the door request switch was operated. Request switch (passenger side)
Request switch (trunk lid)When all the conditions below are met

The Intelligent Key is in the antenna detection area for the outside key antenna (rear
bumper).

When the Intelligent Key is detection for the Inside Key antenna, but another Intelli-
gent Key is detected for the outside key antenna.
Vehicle operation Hazard lamp
Door unlock operation Twice
Door lock operationOnce

INTELLIGENT KEY SYSTEM
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Intelligent Key Lock-in Prevention Function
When Intelligent Key is in vehicle, a door is open, and doors are locked using door lock and unlock switch,
driver door lock knob, Intelligent Key unit sends door unlock request signal to BCM via CAN communication to
unlock all doors to prevent Intelligent Key from becoming locked in vehicle.
When Intelligent Key is in trunk room, all doors are lock and trunk lid is closed, Intelligent Key unit sends trunk
open signal to BCM. Then BCM open trunk lid and warning buzzer sounds for 10 seconds.
CAUTION:
The above function operates when the Intelligent Key is inside the vehicle. However, there may be
times when Intelligent Key cannot be detected and this function will not operate when Intelligent Key
is on the instrument panel, rear parcel shelf, or in the glove box. Also, this system some times does
not operate if the Intelligent Key is in the door pocket for the open door.
List of Operation Related Parts
Parts marked with × are the parts related to operation.
REMOTE KEYLESS ENTRY FUNCTIONS
Door Lock/Unlock Function

Operating a remote controller button on the Intelligent Key sends the Intelligent Key-ID to the Intelligent
Key unit. Intelligent Key unit conducts a verification of the received key-ID, and if the verification is
accepted, a door lock or door unlock request signal is sent to BCM via CAN communication to lock/unlock
the door lock.

When door lock/unlock is performed using Intelligent Key remote controller button operation, operation
confirmation is conducted by making hazard lamps flash and Intelligent Key warning buzzer sound.
Trunk Open Function

Operating a remote controller button on the Intelligent Key sends the Intelligent Key-ID to the Intelligent
Key unit.

Intelligent Key unit conducts a verification of the received key-ID, and if the verification is accepted, a
trunk open request signal is sent to BCM via CAN communication trunk lid is opened.
Operation Condition
Door lock/trunk open function
Intelligent Key
Key switch
Ignition knob switch
Door unlock sensor
Trunk room lamp switch
Door request switch
Trunk opener request switch
Door lock actuator
Trunk lid opener actuator
Inside key antenna
Outside key antenna (Driver, Passenger)
Outside key antenna (rear bumper)
Intelligent Key unit
CAN communication system
BCM
Combination meter
Hazard warning lamp
Door lock function by the request switch××××××××××××
Door lock function by the mechanical key××
Trunk open function by the trunk opener switch× × × ×× ××××
Hazard reminder function×××××
Remote controller button operation Operating condition
Lock

All doors are closed. (for lock operation)

Remove mechanical key from ignition key cylinder (key switch: OFF)

Ignition knob is not press (ignition knob switch: OFF)

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INTELLIGENT KEY SYSTEM

Hazard Reminder Function
The hazard lamps are flashed when the door lock is locked or unlocked by remote controller button.
When ignition switch ON or any door is opened, key reminder function is not operate.
List of Operation Related Parts
Parts marked with × are the parts related to operation.
ENGINE START FUNCTION
Operation Description

When ignition knob is pressed, Intelligent Key unit sends request signal from inside key antenna, key-ID
verification is performed with Intelligent Key using two-way communication, and if verification is success-
ful, an ignition rotation prohibition latch release signal is sent to steering lock unit. Steering lock unit
releases ignition knob rotation prohibition latch. (Ignition knob can now be turned.)

When it becomes possible to rotate the ignition knob, “KEY” warning lamp in combination meter lights up
green to notify driver that ignition knob can be turned.
NOTE:
When it becomes impossible to rotate the ignition knob, “KEY” warning lamp in combination meter lights
up red.

When key-ID verification is successful, Intelligent Key unit uses CAN communication to send engine start
permission signal to BCM.

When BCM receives engine start permission signal, it uses CAN communication to sent starter request
signal to IPDM E/R so that the engine will start when ignition knob is rotated to START position.
Operation Range
Engine can be started when Intelligent Key is in the vehicle. However, sometimes engine might not start when
Intelligent Key is on instrument panel, rear parcel shelf, trunk room or in glove box.
Unlock
Remove mechanical key from ignition key cylinder (key switch: OFF)

Ignition knob is not press (ignition knob switch: OFF)
Trunk open

Remove mechanical key from ignition key cylinder (key switch: OFF)

Ignition knob is not press (ignition knob switch: OFF)

When trunk button pressed more than 0.5 seconds Remote controller button operation Operating condition
Vehicle operation Hazard lamp
Door unlocking operation Twice
Door locking operation Once
Remote keyless entry functions
Intelligent Key
Key switch
Ignition knob switch
Door unlock sensor
Door switch
Trunk room lamp switch
Door lock actuator
Trunk lid opener actuator
Intelligent Key unit
CAN communication system
BCM
Combination meter
Hazard warning lamp
Door lock function by the remote control button××××× × ×××
Trunk open function by the remote control button××× × ××××
Hazard reminder function (Door lock)×××××

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INTELLIGENT KEY SYSTEM

Terminals and Reference Value for Intelligent Key UnitBIS000X4
Te r m i -
nalWire
ColorItemSignal
Input/
OutputCondition
Voltage (V)
(Approx.) Ignition
Knob
PositionOperation or Conditions
1L/YSteering lock unit
power supplyOutput LOCK — 5
2 L CAN-HInput/
Output—— —
3 P CAN-LInput/
Output—— —
4SBIntelligent Key warn-
ing buzzer (driver
side/trunk room)Output LOCKAny door open and
operate remote
controller button or
door request
switch.Buzzer
OFFBattery voltage
Sound
buzzer0
5B/WDoor request switch
(driver side)Input LOCKDoor request switch operation:
Press (ON).0
Other than the above (OFF) 5
6 G Ignition switch (ON) Input ON — Battery voltage
7 B/R key switch Input LOCKInsert mechanical key into igni-
tion key cylinder.Battery voltage
Remove mechanical key from
ignition key cylinder.0
11 Y/B Power source (Fuse) Input LOCK — Battery voltage
12 B Ground — ON — 0
13 V/WInside key antenna
(+)
(Trunk room)
Output LOCKAny door open → Close
(Door switch: ON → OFF)
14 W/LInside key antenna (-)
(Trunk room)
15 R/YInside key antenna
(+) signal
(Center console)
Output LOCKAny door open → Close (Door
switch: ON → OFF)
Ignition knob switch: ON (press
ignition knob.)
16 R/GInside key antenna (-)
signal
(Center console)
17 W/ROutside key antenna
(Rear bumper) (+)
Output LOCKTrunk opener request switch
operation (Switch: ON)
18 W/BOutside key antenna
(Rear bumper) (-)
19 POutside key antenna
(driver side) (+)
Output LOCKDriver door request signal opera-
tion (Switch: ON)
20 OOutside key antenna
(driver side) (-)
SIIA1910J
SIIA1910J
SIIA1910J
SIIA1910J

INTELLIGENT KEY SYSTEM
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25 P/LDoor request switch
(passenger side)Input LOCKDoor request switch operation:
Press (ON)0
Other than the above (OFF) 5
27 BR Ignition knob switch Input —Press ignition knob. Battery voltage
Return ignition knob to LOCK
position.0
28 LG/RDoor unlock sensor
(driver side)Input LOCK Driver side doorLocked 5
Other than
above0
29 G/OTrunk opener request
switchInput LOCKTrunk opener request switch
operation: Press (ON)0
Other than the above (OFF) 5
31 G/YSteering lock unit
ground—ON — 0
32 L/RSteering lock unit
communicationInput/
OutputLOCKPress ignition knob with Intelli-
gent Key inside vehicle.
Other than the above 5
33 L/WInside key antenna
(+) signal
(Instrument center
lower)
Output LOCKAny door open → Close (Door
switch: ON → OFF)
Ignition knob switch: ON (press
ignition knob.)
34 R/WInside key antenna (-)
signal
(Instrument center
lower)
37 GROutside key antenna
(passenger side) (+)
Output LOCKPassenger door request switch
operation (Switch: ON)
38 LGOutside key antenna
(passenger side) (-) Te r m i -
nalWire
ColorItemSignal
Input/
OutputCondition
Voltage (V)
(Approx.) Ignition
Knob
PositionOperation or Conditions
PIIB8449J
SIIA1910J
SIIA1910J

BL-90
INTELLIGENT KEY SYSTEM

Terminals and Reference Value for Steering Lock UnitBIS000X5
Terminals and Reference Value for BCMBIS000X6
Te r m i -
nalWire
ColorSignal DesignationSignal
Input/
OutputCondition
Voltage (V)
(Approx.) Ignition
Knob
PositionOperation or Conditions
1 Y/B Battery power supply Input LOCK — Battery voltage
2L/YSteering lock unit power
supplyOutput LOCK — 5
3L/RSteering lock unit com-
munication signalInput/
OutputLOCKPress ignition knob with
Intelligent Key inside
vehicle.
Other than the above 5
4G/YSteering lock unit
ground—ON — 0
PIIB8449J
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ColorItemSignal
Input/
OutputConditionVoltage (V)
(Approx.)
12 R/LFront door switch (Passenger
side)Input Door open (ON) → Close (OFF) 0 → Battery voltage
13 R/B Rear door switch RH Input Door open (ON) → Close (OFF) 0 → Battery voltage
38 R Ignition switch InputIgnition switch is in ON or START posi-
tionBattery voltage
39 L CAN-HInput/
Output——
40 P CAN-LInput/
Output——
42 Y/R Battery power supply (Fuse) Input — Battery voltage
52 B Ground — — 0
55 W/BBattery power supply (Fusible
link)Input — Battery voltage
57 V/W Trunk room lamp switch Input Trunk lid open (ON) → Close (OFF) 0 → Battery voltage
62 SB Front door switch (Driver side) Input Door open (ON) → Close (OFF) 0 → Battery voltage
63 R/W Rear door switch LH Input Door open (ON) → Close (OFF) 0 → Battery voltage