1999 NISSAN PRIMERA hood open

Checks
Once in Diagnostic Mode (and after identifying the last three alarm triggers in case a theft warning system
is equipped on the vehicle), the following inputs can be tested.
USER ACTION TCU Reaction COMPONENT TESTED
Driver’s door opened from closed
(all other doors closed)Hazards flash once Driver’s door open signal
Passenger or rear door opened from closed
(all other doors closed)Hazards flash once Door open signal for opened door
Driver’s door locked from unlocked Hazards flash once Driver’s door status signal
Passenger door locked from unlocked Hazards flash once Assist door status signal
Rear doors locked from unlocked (with ultra-
sonic model)Hazards flash once Rear doors status signal
Ultrasonics cancel switch is pressed (with ultra-
sonic model)Hazards flash once U/S cancel signal
Trunk or back door is opened from closed Hazards flash once Trunk open signal
Hood is opened from closed (with ultrasonic
model)Hazards flash once Hood open signal
Hazard switch is pressed from off Hazards flash once Hazard switch signal
Turn signal switch is moved to left from off Hazards flash once Left turn signal
Turn signal switch is moved to right from off Hazards flash once Right turn signal
Key turned to lock position in door Hazards flash once * Key cylinder lock switch signal
Lighting switch turned 1st position or 2nd posi-
tion from offHazards flash once Tail lamp signal
Key put in ignition from out Hazards flash once Key in detect signal
Central unlock/Trunk release switch is pressed Hazards flash once Central unlock/Trunk release signal
External trunk release switch pressed from off Hazards flash once External trunk release switch signal
*) Hazards may flash a second time because of Driver’s door status signal change. The min. delay time between flash actions is
100ms.
In case the system does not operate as described above, check the concerned circuit for open or short.
After completion, the Diagnostic Mode can be switched off by pressing the rear defogger switch or by turn-
ing the ignition to“ON”. The hazard lamp will flash at 3Hz for 3 seconds to confirm that Diagnostic Mode
has been switched off.
TIME CONTROL UNIT (TCU)
Trouble Diagnosis (Cont’d)
EL-310

SETTING THE THEFT WARNING SYSTEM
Initial condition
(1) Close all doors.
(2) Close hood and trunk lid.
Pre-armed phase and armed phase
The theft warning system turns into the“pre-armed”phase when hood, trunk lid and all doors are closed
and locked by key or multi-remote controller. (The security indicator lamp blinks intermittently for 30 sec-
onds.)
After about 30 seconds, the system automatically shifts into the“armed”phase (the system is set).
CANCELING THE SET THEFT WARNING SYSTEM
When the following (a) or (b) operation is performed, the armed phase is canceled.
(a) Unlock the doors with the multi-remote controller.
(b) Insert key in ignition key cylinder and turn it to ON. Then NATS IMMU will send a disarm signal to the
time control unit.
ACTIVATING THE ALARM OPERATION OF THE THEFT WARNING SYSTEM
Make sure the system is in the armed phase. When the following operation (a) (b) (c) (d) or (e)is performed,
the system sounds the horns and flashes the hazard lamp for about 30 seconds.
(a) Engine hood, trunk lid or any doors is opened before unlocking door with the multi-remote controller.
(b) A door is unlocked without using the multi-remote controller.
(c) The ignition is switched ON without using a NATS registered key.
(d) The ultra sonic sensing is triggered.
(e) A rear side or rear screen breakage is detected (Wagon).
POWER SUPPLY AND GROUND CIRCUIT
Power is supplied at all times.

Through 10A fuse [No.16 , located in the fuse block (J/B)]

to security indicator lamp terminal
2.
Power is supplied at all times

through 10A fuse [No.5 , located in the fuse block (J/B)]

to time control unit terminal
9.
With the ignition switch in the ON or START position, power is supplied

through 10A fuse [No.26 , located in the fuse block (J/B)]

to time control unit terminal
1.
Ground is supplied

to time control unit terminal
16.

through body groundsM6,M28andM26.
INITIAL CONDITION TO ARM THE SYSTEM
The operation of the theft warning system is controlled by all the doors, hood and trunk lid.
To activate the theft warning system, the time control unit must receive signals indicating all the doors, hood
and trunk lid are closed and the doors are locked.
When a door is open, time control unit terminal

6or
7receives a ground signal from each door switch.
When a door is unlocked, time control unit terminal

25,
35or
36receives a ground signal from terminal

5of each door unlock sensor.
When the hood is open, time control unit terminal

32receives a ground signal

from terminal
1of the hood switch

through body groundsE11andE37.
When the trunk lid is open, time control unit terminal

33receives a ground signal

from terminal
1of the trunk room lamp switch

through body groundsB18andB27.
When the back door, trunk or tail gate is open, time control unit terminal

33receives a ground signal

from terminal
1of the luggage room lamp switch

through body groundsB48andD110.
THEFT WARNING SYSTEM
System Description (Cont’d)
EL-313

THEFT WARNING SYSTEM ARMING (With key or remote controller used to lock doors)
If the key is used to lock doors, time control unit terminal
29receives a ground signal

from terminal
2of the key cylinder switch

through body groundsB18andB27.
If this signal or lock signal from remote controller is received by the time control unit, the theft warning sys-
tem will arm automatically.
When arming the theft warning system, time control unit terminal

18supplies ground intermittently to ter-
minal

1of the security indicator lamp. The security lamp will blink intermittently for approximately 30 sec-
onds (and then blink every 2.6 seconds, due to NATS).
Now the theft warning system is in armed phase.
THEFT WARNING SYSTEM ALARM OPERATION
The theft warning system is triggered by

opening a door

opening the trunk lid or back door

opening the hood

unlocking door without using the multi-remote controller

switching the ignition ON without a NATS registered key

triggering the ultra sonic sensors

smashing the back door or rear side quarter window (wagon model only).
Once the theft warning system is in armed phase, if the time control unit receives a signal at terminal

25,

35,
36(door unlock sensor),
6,
7(door switch),
33(trunk room lamp switch or luggage room lamp
switch),

32(hood switch),
31(smash sensor) or
17(ultra sonic sensor) the theft warning system will be
triggered. The hazard lamps flash and the horn sounds intermittently.
Power is supplied at all times

through 10A fuse [No.16 , located in the fuse block (J/B)].

to theft warning relay terminal
2.
If the theft warning system is triggered, ground is supplied

from terminal
43of the time control unit

to theft warning relay terminal
1.
The hazard lamps flash and the horn sounds intermittently.
The alarm automatically turns off after 30 seconds but will reactivate if the vehicle is tampered with again,
or if the initial cause remains present.
THEFT WARNING SYSTEM ALARM DISARMING
The theft warning system alarm operation can be deactivated by either unlocking the vehicle with the remote
controller, or turning the ignition to the“ON”position with a registered NATS key.
SMASH SENSOR
The smash sensor will trigger the alarm when the rear side or rear screen is broken. There are three wind-
shield protected:
1. Back door window. Sensor circuit is bonded to the glass.
2. Rear side quarter windows (one each side). Sensor circuit is bonded to the glass.
All three sensor are wired in series. By breaking any of the three windshields (sensor circuit open), the alarm
will sound.
THEFT WARNING SYSTEM
System Description (Cont’d)
EL-314

E11
32
Y/B
B12
1
E12
2
B
E37
GYW B15
7
Y/B
6
Y
21
P
2
17
PU
8
20
B/Y
4 Y3
5
L4
SB
21
3
G
5 P6 B/Y
9 Y/B
Y/B
P PU B/Y
LSBG
WW
W
EL-THEFT-02
BB
E12B29
B15 B57
E115
12
B29
B57
3534 33 32 3130
29 2827
26 25B12362322 21 2019
18 1724
3 2 14567
810911 12 13 14 15 16
1
23456
12345678
YEL358B
TIME
CONTROL
UNIT
ULTRASONIC
SENSOR
HOOD
SWITCHULTRASONIC
SUB SENSOR
CLOSEDOPEN
THEFT WARNING SYSTEM
Wiring Diagram—THEFT—(Cont’d)
EL-317

Trouble Diagnoses
Alarm Trigger Feedback
To verify the last three triggers that activated the theft warning system, the Time Control Unit (TCU) can be
switched into Diagnostic Mode (see page EL-309 how to enter Diagnostic Mode).
Approximately 2 seconds after the TCU has finished flashing the hazard lamp to confirm that the Diagnos-
tic Mode has been successfully entered, the TCU will generate a short beep indicating the trigger that will
be displayed. A single beep means the most recent trigger, three beeps means the oldest trigger. Following
each beep or group of beeps, the hazard lamp will flash to indicate the alarm trigger.
Source of Alarm Trigger Number (of flashes)
Driver’s door lock status switch 1
Passenger door lock status switch 2
Rear door lock status switch 3
Ignition line 4
Driver’s door open switch 5
Other door open switch 6
Trunk or back door open switch 8
Hood switch 9
Ultra sonic sensors 10
Smash sensor (Wagon vehicles) 11
In case there have been no alarm triggers, there will be no indicator flashes between the audible signals.
After completing the alarm trigger feedback, the TCU will enter Diagnostic Mode as described on page
EL-309.
Before continuing trouble diagnoses on the next page, perform the checks as mentioned in the table on page
EL-310.
THEFT WARNING SYSTEM
EL-328

PRELIMINARY CHECK
The system operation is canceled by turning the ignition switch to“ON”at any step between START and
ARMED in the following flow chart.
System phase
START
Note: Before starting operation check, open front windows.
DISARMED
Turn ignition switch“OFF”and remove the ignition key.
“SECURITY”indicator lamp will blink every 2.6 seconds.
(NATS)
OK
NG
Refer to
NATS trouble
diagnosis.
Close all doors, hood and trunk lid.
Press the ultrasonic cancel switch. The“SECURITY”indicator
lamp will go on for approximately 6 seconds.
OK
NG
SYMPTOM 1
PRE-ARMED
Lock doors using key or multi-remote controller.
ARMED
For about 30 seconds,“SECURITY”indicator lamp will blink
intermittently.
OK
NG
SYMPTOM 2
Disarm the system by unlocking the vehicle using the remote
controller. Arm the system again without excluding the ultra-
sonic sensors.
ALARM
Unlock any door without multi-remote controller, activate the
ultra sonic sensors by inserting an object into the vehicle’s
interior, or open hood or trunk.
.......................................................................................................
Alarm (horn and hazard lamp) will operate.
OK
NG
SYMPTOM 3
NG
SYMPTOM 4
DISARMED
Unlock the vehicle using the multi-remote controller or insert
the key in the ignition and switch it to ON.
Alarm (horn and hazard lamp) will stop.
OK
NG
SYMPTOM 5
System is OK.
After performing preliminary check, go to symptom chart on next page.









THEFT WARNING SYSTEM
Trouble Diagnoses (Cont’d)
EL-329

Before starting trouble diagnoses below, perform preliminary check, EL-329.
Symptom numbers in the symptom chart correspond with those of Preliminary check.
SYMPTOM CHART
Procedure—Power supply
and ground
circuit checkDiagnostic procedure——
REFERENCE PAGE
EL-329
EL-331
EL-331
EL-332
EL-336
EL-337
EL-338
EL-339
EL-340
EL-341
EL-296
EL-342
SYMPTOMPreliminary check
Power supply circuit check
Ground circuit check
Diagnostic Procedure 1
(Door, hood and trunk room lamp switch check)
Diagnostic Procedure 2
(Security indicator lamp check)
Diagnostic Procedure 3
(Door unlock sensor check)
Diagnostic Procedure 4
(Door key cylinder switch check)
Diagnostic Procedures 5
(Smash sensor check)
Diagnostic Procedure 6
(Theft warning horn alarm check)
Diagnostic procedure 7
(Hazard lamp alarm check)
Check“MULTI-REMOTE
CONTROL”system.
Check“NATS (Nissan Anti-Theft system)”.
1Security indicator does not turn“ON”
or blinking.XXX X
2
Theft warning
system cannot
be set by...
Allitems XXXX X
Door out side key X X X X
Multi-remote control X X X X
3
*1 Theft warning
system does not
alarm when...
Any door is opened.XXXX
Any door is unlocked with-
out using key or multi-re-
mote controllerXXX X
Glass breakage is deteted
(Wagon)XXX X
4
Theft warning
alarm does not
activate.
All functionXXXX X
Horn alarm X X X X
Hazard lamp X X X X
5
Theft warning
system cannot be
canceled by...
Turning the ignition ON *2 X X X X
Multi-remote controller X X X X
X: Applicable
*1: Make sure the system is in the armed phase.
*2: Make sure the key is NATS registered.
THEFT WARNING SYSTEM
Trouble Diagnoses (Cont’d)
EL-330

DIAGNOSTIC PROCEDURE 1-(2)
(Hood switch check)
CHECK HOOD SWITCH INPUT SIG-
NAL.
Remove time control unit from fuse
block.
Note: Fuse block (J/B) is very frag-
ile. TCU should be removed care-
fully to avoid breaking the locking
bars.
Check continuity between control unit
terminal

32and ground.
Refer to wiring diagram in EL-317.
OK
OK
Hood switch is OK.
CHECK HOOD SWITCH.
1. Disconnect hood switch connector.
2. Check continuity between hood
switch terminals.
OK
NG
Replace hood switch.
Check the following.

Hood switch ground circuit

Harness for open or short between
control unit and hood switch
Condition Continuity
Hood is open. Yes
Hood is closed. No
Terminals Condition Continuity

1-
2Pushed No
Released Yes
YEL457B Time control
unit connector
YEL458B Hood switch connector

THEFT WARNING SYSTEM
Trouble Diagnoses (Cont’d)
EL-334