2004 NISSAN TERRANO sensor

DIAGNOSTIC PROCEDURE 1
(Door unlock sensor check)
CHECK DOOR UNLOCK SENSOR
INPUT SIGNAL.
Check voltage between time control unit
connector terminals
U35orU36and
ground.
NG
EOK Door unlock sensor is OK.
CHECK DOOR UNLOCK SENSOR.
1) Disconnect door unlock sensor con-
nector.
2) Check continuity between door unlock sensor terminals.
OK
ENG Replace door lock actuator
assembly.
Check the following:
IDoor unlock sensor ground circuit.
I Harness for open or short-circuit
between control unit and door unlock
sensor
Terminals
Condi-
tion Voltage
(V)
!@
Driver
side
U35Ground Locked Approx.
12
(Approx. 20 sec.)
Unlocked 0
Pas-
senger
side
U36Ground Locked Approx.
12
(Approx. 20 sec.)
Unlocked 0
Terminals Condition Continuity
q
2- q4Locked
No
Unlocked Yes
YEL301D
YEL908E
H
H
POWER DOOR LOCK
Trouble Diagnoses (Cont'd)
EL-174
http://vnx.su/

Before starting trouble diagnoses below, perform ªPRELIMINARY CHECKº, EL-192.
Symptom numbers in the symptom chart correspond with those of Preliminary check.
SYMPTOM CHART
REFERENCE PAGEEL-194 EL-195 EL-196 EL-197 EL-198 EL-199 EL-200 EL-201 EL-201
SYMPTOM
Power supply and ground circuit check
Procedure 1
(Door unlock sensor check)
Procedure 2
(Door key cylinder switch check)
Procedure 3
(Door lock actuator check)
Procedure 4
(Super lock actuator check)
Procedure 5
(Door switch check)
Procedure 6
(NATS release signal check)
Procedure 7
(Ignition key switch check)
Procedure 8
(Ignition switch ªONº circuit check)
1 Power door lock does not oper-
ate using any switch. XX X
2 Power door lock does not oper-
ate with any switch of driver side. X
3 Power door lock does not oper-
ate with any switch of passenger
side. XX
4 Specific door lock actuator does
not operate. X
5 Super lock cannot be set by both
door key cylinders. XXX XX
6 Super lock cannot be set by one
of door key cylinders. X
7 *Super lock cannot be released
by one or both door key cylin-
ders. X
8 *Super lock cannot be released
by ignition key switch. (Signal
from NATS IMMU) X
9 Specific super lock actuator does
not operate. X
10 *Key reminder system does not
operate. XX
X: Applicable
*: Make sure the power door lock system operates properly.
POWER DOOR LOCK Ð SUPER LOCK Ð
Trouble Diagnoses (Cont'd)
EL-193
http://vnx.su/

DIAGNOSTIC PROCEDURE 1
(Door unlock sensor check)
CHECK DOOR UNLOCK SENSOR
INPUT SIGNAL.
Check voltage between time control unit
connector terminals
U35orU36and
ground.
NG
EOK Door unlock sensor is OK.
CHECK DOOR UNLOCK SENSOR.
1) Disconnect door unlock sensor con-
nector.
2) Check continuity between door unlock sensor terminals.
OK
ENG Replace door lock actuator
assembly.
Check the following:
IDoor unlock sensor ground circuit.
I Harness for open or short-circuit
between control unit and door unlock
sensor
Terminals
Condi-
tion Voltage
(V)
!@
Driver
side
U35Ground Locked Approx.
12
(Approx. 20 sec.)
Unlocked 0
Pas-
senger
side
U36Ground Locked Approx.
12
(Approx. 20 sec.)
Unlocked 0
Terminals Condition Continuity
q
2- q5Locked
No
Unlocked Yes
YEL301D
YEL302D
H
H
POWER DOOR LOCK Ð SUPER LOCK Ð
Trouble Diagnoses (Cont'd)
EL-195
http://vnx.su/

Trouble Diagnoses
If doors can not be unlocked by remote controller operation then the following procedure is required.
A) Unlock the vehicle by a mechanical key in the drivers door key cylinder.Note: this may cause the alarm to sound.
B) Put the key in ignition, turn to ON position for at least five seconds. Assuming the ignition key contains a valid transponder then a signal will be generated by the immobilizer which will disarm the alarm and allow
key learn mode to be entered.
C) Turn ignition OFF and wait for ten seconds.
SYMPTOM CHART
Symptom Possible cause Diagnoses/service order
No doors can be locked or
unlocked by remote control opera-
tion. 1. Remote controller battery
2. Power door lock system
3. Key switch (insert)
4. Door switch
5. Power supply circuit for time
control unit
6. Ground circuit for time control unit
7. Remote controller 1. Check remote controller battery. Refer to EL-214.
2. Check that power door lock operates properly. If
NG, check power door lock.
3. Check key switch (insert) signal at terminal
U22of
time control unit.
4. Check door switch signal at terminals
B01and
B07of time control unit (Fuse block).
5. Make sure battery voltage is present at terminal
U09of time control unit.
6. Check continuity between terminal
MM2of time con-
trol unit (Fuse block) and ground.
7. Replace remote controller. Refer to EL-215.
The new ID of remote controller
cannot be entered. 1. Remote controller battery
2. Key switch (insert)
3. Door switch
4. Driver's door unlock sensor
5. Ignition ON power supply
circuit for time control unit
6. Remote controller 1. Check remote controller battery. Refer to EL-214.
2. Check key switch (insert) signal at terminal
U22of
time control unit.
3. Check door switch signal at terminals
B01and
B07of time control unit (Fuse block).
4. Check driver's door unlock sensor signal at terminal
U35of time control unit.
5. Make sure battery voltage is present at terminal
U01of time control unit while ignition switch is in
ON position.
6. Replace remote controller. Refer to EL-215.
Refer to ªTIME CONTROL UNIT INSPECTION TABLEº on EL-214 to check the control unit signals.
NOTE:
I The unlock operation of multi-remote control system does not activate with key inserted in the ignition key
cylinder.
I The lock operation of multi-remote controller does not activate with the key inserted in the ignition key cyl-
inder or if one of the doors is opened.
MULTI-REMOTE CONTROL SYSTEM
EL-213
http://vnx.su/

TIME CONTROL UNIT INSPECTION TABLE
TerminalNo. Wire
color Connections Operated condition Voltage (V)
(approximate values)
U01 Ð Ignition switch (via ignition relay) Ignition key ªONº position 12
U06
(B07) Ð Driver door switch OFF (Closed)
,ON (Open) 12 ,0
U07
(B01) Ð All door switches OFF (Closed)
,ON (Open) 12 ,0
U08 Ð Power source (C/B) Ð 12
U09 Ð Power source (Fuse) Ð 12
U16 Ð Ground Ð 0
U22 BR Ignition key switch
(Insert) Key inserted
,key removed from ignition key cylinder 12 ,0
U25 Y/L Rear door unlock
sensors Rear doors: Locked
,Unlocked 12 ,0
U35 Y/B Driver door unlock sensor Driver door: Locked ,Unlocked 12 ,0
U36 Y/L Passenger door unlock sensor Passenger door: Locked ,Unlocked 12 ,0
REMOTE CONTROLLER BATTERY CHECK
Remove battery and measure voltage between battery positive and
negative terminals, !and @.
Then, use the 300W resistor as shown in figure.
Measuring terminal
Standard
value
!@
Battery positive terminal !Battery negative terminal @2.5 - 3.0V
Note:
Remote controller does not function if battery is not set cor-
rectly.
SEL672U
MULTI-REMOTE CONTROL SYSTEM
Trouble Diagnoses (Cont'd)
EL-214
http://vnx.su/

FUNCTION
IThe TCU has the following control functions.
Item Details of control
Direction indicators Switches the director indicators (Left, Right or All) when the combination switch or hazard
switch is operated.
Light warning chime Sounds warning chime when driver's door is opened with light switch in the 1st or 2nd
position and ignition switch ªOFFº.
Ignition key warning chime Sounds warning chime when driver's door is opened with key in ignition and the driver
door lock knob is moved from the ªunlockº position to the ªlockº position.
Rear window defogger timer Turn off rear window defogger and door mirror heater, if equipped, about 15 minutes
after the rear window defogger switch is turned ªONº.
Battery saver Shuts off interior lamp in 30 minutes if any door is left open when ignition switch is
ªOFFº. The battery saver will reset if ignition switch is cycled or any door is opened or
closed.
Interior lamp timer Keep interior lamp illuminated for about 30 seconds when:
I
driver's door is unlocked,
I the ignition is switched off,
I driver's door is opened and then closed.
The timer is cancelled, and interior lamp turns off when:
I driver's door is locked, or
I ignition switch is turned ªONº.
Theft warning
system Normal operationMonitors doors, hood, boot lid, door locks, volumetric sensors (if not excluded) and igni-
tion when armed.
Flashes the direction indicators and sounds the horn for 30 seconds in case one of the
monitored sensors is triggered.
Diagnostic mode Indicates the last three alarm triggers by flashing the direction indicators.
Central door lock Centrally locks and unlocks the vehicle
Super lock Activates and de-activates the super lock system.
TIME CONTROL UNIT (TCU)
System Description (Cont'd)
EL-217
http://vnx.su/

SETTING THE THEFT WARNING SYSTEM
Initial condition
(1) Close all doors.
(2) Close hood.
Pre-armed phase and armed phase
The theft warning system turns into the ªpre-armedº phase when hood and all doors are closed and locked by
key or multi-remote controller. (The security indicator lamp blinks intermittently for 30 seconds.)
After about 30 seconds, the system automatically shifts into the ªarmedº 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 timecontrol 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) or (d) is performed, the
system sounds the horns and flashes the hazard lamp for about 30 seconds.
(a) Engine hood or any door 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 ultrasonic sensing is triggered.
POWER SUPPLY AND GROUND CIRCUIT
Power is supplied at all times.
IThrough 10A fuse [No.
16, located in the fuse block (J/B)]
I to combination meter (security indicator lamp) terminal q
27.
I through 10A fuse [No.
5, located in the fuse block (J/B)]
I to time control unit terminal
U09.
With the ignition switch in the ON or START position, power is supplied
I through 10A fuse [No.
26, located in the fuse block (J/B)]
I to time control unit terminal
U01.
Ground is supplied
I to time control unit terminal
U16
Ithrough body groundsF36andF47(LHD models), orM33andM754(RHD models).
INITIAL CONDITION TO ARM THE SYSTEM
The operation of the theft warning system is controlled by all the doors and hood.
To activate the theft warning system, the time control unit must receive signals indicating all the doors and
hood are closed and the doors are locked.
When a door is open, time control unit terminal
U06orU07receives a ground signal from each door switch.
When a door is unlocked, time control unit terminal
U25,U35orU36receives a ground signal from each door
unlock sensor.
When the hood is open, time control unit terminal
U32receives a ground signal
I from the hood switch
I through body grounds
M33andM754.
THEFT WARNING SYSTEM
System Description (Cont'd)
EL-245
http://vnx.su/

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
http://vnx.su/