open hood NISSAN TERRANO 2004 Service User Guide

THEFT WARNING SYSTEM ARMING (With key or remote controller used to lock doors)
If the key is used to lock doors, time control unit terminalU29receives a ground signal
I from terminal q
2of the key cylinder switch
I through body grounds
B18andB10.
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
U18supplies ground intermittently to termi-
nal q
40of the combination meter. The security lamp will blink intermittently for approximately 30 seconds (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
I opening a door
I opening back door
I opening the hood
I unlocking door without using the multi-remote controller
I switching the ignition ON without a NATS registered key
I triggering the ultrasonic sensors
Once the theft warning system is in armed phase, if the time control unit receives a signal at terminal
U25,
U35,U36(door unlock sensor),U06,U07(door switch),U32(hood switch), orU30(ultrasonic sensor) the theft
warning system will be triggered. The hazard lamps flash and the horn sounds intermittently.
Power is supplied at all times
I through 10A fuse [No.
16, located in the fuse block (J/B)]
I to theft warning horn relay.
If the theft warning system is triggered, ground is supplied
I from terminal
U43of the time control unit
I to theft warning horn relay.
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 ªONº position with a registered NATS key.
THEFT WARNING SYSTEM
System Description (Cont'd)
EL-246
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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-218 how to enter Diagnostic Mode).
Approximately 2 seconds after the TCU has finished flashing the hazard lamp to confirm that the Diagnostic
Mode has been successfully entered, the TCU will generate a short beep indicating the trigger that will be dis-
played. 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 TriggerNumber (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
Ultrasonic sensors 10
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-218.
Before continuing trouble diagnoses on the next page, perform the checks as mentioned in the table on page
EL-219.
THEFT WARNING SYSTEM
EL-264
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PRELIMINARY CHECK
The system operation is canceled by turning the ignition switch to ªONº at any step between START and
ARMED in the following flow chart.
System phaseSTART
Note: Before starting operation check, open front windows.
EDISARMED Turn ignition switch ªOFFº and remove the ignition key.
ªSECURITYº indicator lamp will blink every 2.6 seconds.
(NATS)
OK
ENGRefer to NATS
trouble diagno-
sis.
Close all doors, hood and trunk lid.
Press the ultrasonic cancel switch. The ªSECURITYº indicator lamp
will go on for approximately 6 seconds.
OK
ENGSYMPTOM 1
PRE-ARMED Lock doors using key or multi-remote controller.
ARMEDFor about 30 seconds, ªSECURITYº indicator lamp will blink inter-
mittently.
OK
ENGSYMPTOM 2
Disarm the system by unlocking the vehicle using the remote con-
troller. Arm the system again without excluding the ultrasonic sen-
sors.
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 door.
........................................................................\
...............................
Alarm (horn and hazard lamp) will operate.
OK
ENGSYMPTOM 3
ENGSYMPTOM 4
EDISARMED 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
ENGSYMPTOM 5
System is OK.
After performing preliminary check, go to ªSYMPTOM CHARTº, EL-266.
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THEFT WARNING SYSTEM
Trouble Diagnoses (Cont'd)
EL-265
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Before starting trouble diagnoses below, perform ªPRELIMINARY CHECKº, EL-265.
Symptom numbers in the symptom chart correspond with those of Preliminary check.
SYMPTOM CHART
ProcedureÐPower supply
and ground cir- cuit check Diagnostic procedure Ð Ð
REFERENCE PAGE
EL-265
EL-267
EL-267
EL-268
EL-270
EL-271
EL-272
EL-273
EL-274
EL-204
EL-222
SYMPTOMPreliminary check
Power supply circuit check
Ground circuit check
Diagnostic Procedure 1
(Door, hood and back door 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 Procedure 5
(Theft warning horn alarm check)
Diagnostic procedure 6
(Hazard lamp alarm check)
Check ªMULTI-REMOTE
CONTROLº system.
Check ªNATS (Nissan Anti-Theft system)º.
1 Security indicator does not turn ªONº or
blinking. XXX X
2 Theft
warning
system
cannot
be set
by... All items
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 controller XXX
X
4 Theft
warning
alarm
does not
activate. All function
XXXX 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-266
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DIAGNOSTIC PROCEDURE 1-(2)
(Hood switch check)
CHECK HOOD SWITCH INPUT SIGNAL.
Remove time control unit from fuse block.
Note: Junction block (J/B) is very frag-
ile. TCU should be removed carefully
to avoid breaking the locking bars.
Check continuity between control unit ter-
minal
U32and ground.
NG
EOKHood switch is OK.
CHECK HOOD SWITCH.
1. Disconnect hood switch connector.
2. Check continuity between hood switch
terminals.
OK
ENG Replace hood switch.
Check the following.
IHood switch ground circuit
I Harness for open or short between con-
trol unit and hood switch
Condition Continuity
Hood is open. Yes
Hood is closed. No
Terminals Condition Continuity
q
1-q2Pushed No
Released Yes
YEL901E
YEL902E
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THEFT WARNING SYSTEM
Trouble Diagnoses (Cont'd)
EL-269
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