system NISSAN TERRANO 2002 Service Repair Manual

Power Door Lock
IWhen Lock-Unlock (Unlock-Lock) is repeated more than two or three times rapidly using the door lock-&-
unlock switch connected to the driver side door lock knob, the door may either be locked or unlocked by
itself, or the actuator may not be activated. This depends on the Lock-Unlock operation period and other
conditions. Avoid this type of operation as a system malfunction may occur.
POWER DOOR LOCK
EL-137

System Description
OUTLINE
Power door lock system with super lock and key reminder is controlled by super lock control unit. Super lock
has a higher anti-theft performance than conventional power door lock systems.
When super lock is in the released condition, lock knob operation locks or unlocks door.
When super lock is in set condition, lock knob operation cannot lock nor unlock door.
OPERATION
Power door lock/unlock and super lock set/release operation by door key cylinder
IWith the key inserted into door key cylinder on driver or passenger door, turning it to LOCK will lock all
doors and set super lock while all doors are closed or one or more door is open.
IWith the key inserted into door key cylinder on driver or passenger door, turning it to UNLOCK will unlock
all doors and release super lock.
Power door lock and super lock release operation (by NATS IMMU signal)
IWith the key inserted in ignition key cylinder and turning it to ªONº for about5-6sec. will unlock all doors
and release super lock.
Power door lock/unlock operation by lock knob
ISetting lock knob on driver or passenger door to LOCK while all doors are closed, will cause all doors to
lock.
Setting lock knob on passenger door to lock when one or more doors are open will lock passen-
ger door only. (Power door lock system will not operate.)
ISetting lock knob on driver or passenger door to UNLOCK while all doors are closed will unlock all doors.
Lock knob operation cannot control super lock.
SEL831U
POWER DOOR LOCK Ð SUPER LOCK Ð
EL-146

Key reminder system
IIf the ignition key is in the ignition cylinder and any door is open, setting the lock & unlock switch and lock
knob on driver door to ªLOCKº locks the door once but then immediately unlocks it.
System initialisation
ISystem initialisation is required when battery cables are reconnected. Conduct one of the following:
Ð insert the key into ignition key cylinder and turn it to ªON.º
Ð LOCK/UNLOCK operation using door key cylinder.
POWER DOOR LOCK Ð SUPER LOCK Ð
System Description (Cont'd)
EL-147

Trouble Diagnoses
PRELIMINARY CHECK
CHECK-IN
Open all windows and remove
key from ignition key cylinder.
Does power door lock operate
properly?
Ye s
ENo (All doors)
Power door lock does not operate by using;
Ð any switch.
..........................................................................
Ð driver side lock knob switch and/or key
cylinder.
..........................................................................
Ð passenger side lock knob switch and/or
key cylinder.H
ESYMPTOM 1
ESYMPTOM 2
ESYMPTOM 3
No (Specific door)
SYMPTOM 4
Does super lock set by using
door key cylinder?
Ye s
ENo (All doors)
Super lock does not set by using;
Ð both door key cylinders.
..........................................................................
Ð one of door key cylinders.
ESYMPTOM 5
ESYMPTOM 6
No (Specific door)
SYMPTOM 9
Does super lock release by using
door key cylinder or IGN key
switch?
Ye s
ENo (All doors)
Super lock does not release by using;
Ð one or both door key cylinders.
..........................................................................
Ð IGN key switch.
(Signal from NATS IMMU)
ESYMPTOM 7
ESYMPTOM 8
No (Specific door)
SYMPTOM 9
Insert key to ignition key cylinder,
open any door and lock the door
using driver or passenger side
knob lock switch.
Does key reminder system oper-
ate properly?
Ye s
ENo
SYMPTOM 10
INSPECTION END
After performing preliminary check, continue with diagnostic procedure in ªSYMPTOM CHARTº,
EL-159.
HWhen one or more doors are opened with lock knob on passenger door set to LOCK, only passenger door
will lock. (Power door lock system will not operate.)
E
E
E
H
H
H
H
H
H
H
POWER DOOR LOCK Ð SUPER LOCK Ð
EL-158

Before starting trouble diagnoses below, perform ªPRELIMINARY CHECKº, EL-158.
Symptom numbers in the symptom chart correspond with those of Preliminary check.
SYMPTOM CHART
REFERENCE PAGE EL-160 EL-161 EL-162 EL-163 EL-164 EL-165 EL-166 EL-167 EL-167
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)
1Power door lock does not oper-
ate using any switch.XX X
2Power door lock does not oper-
ate with any switch of driver side.X
3Power door lock does not oper-
ate with any switch of passenger
side.XX
4Specific door lock actuator does
not operate.X
5Super lock cannot be set by both
door key cylinders.XXX XX
6Super 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
9Specific 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-159

DIAGNOSTIC PROCEDURE 4
(Super lock actuator check)
CHECK SUPER LOCK ACTUATOR CIRCUIT.
Check voltage for super lock actuator.
Note:
Put the system in set condition before check-
ing release signal.
OK
ENG
Super lock actuator is
OK.
CHECK SUPER LOCK ACTUATOR.
1. Disconnect door lock actuator assembly
connector.
2. Set lever A in lock position.
3. Apply 12V direct current to door lock actua-
tor assembly and check operation.
Front door
Rear door
NG
EOK
Check harness
between control unit
and door lock actuator
assembly.
Replace door lock actuator assembly.
Door key
cylinder
switch con-
ditionTerminals
Voltage
(V)
!@
Lock (Set)
U40Ground
Approx. 12
Unlock
(Released)
U44Ground
Super lock
actuator
operationTerminalsConnec-
tion from
lever A to
lever B !@
Released
,Setq
1q4Discon-
nect
Set,
Releasedq
4q1Connect
Super lock
actuator
operationTerminalsConnec-
tion from
lever A to
lever B !@
Released
,Setq
1: (LH)
q
6: (RH)q
4: (LH)
q
3: (RH)Discon-
nect
Set,
Releasedq
4: (LH)
q
3: (RH)q
1: (LH)
q
6: (RH)Connect
YEL308D
YEL309D
YEL310D
YEL311D
H
H
POWER DOOR LOCK Ð SUPER LOCK Ð
Trouble Diagnoses (Cont'd)
EL-164

DIAGNOSTIC PROCEDURE 6
(NATS release signal check)
Does engine start properly?
Ye s
ENo
Check NATS system.
CHECK NATS SIGNAL CIRCUIT.
1) Disconnect control unit connector and
NATS IMMU connector.
2) Check continuity between control unit
terminal
U26and NATS IMMU termi-
nalq
3.
Continuity should exist.
3) Check continuity between control unit
terminal
U26and ground.
Continuity should not exist.
OK
ENG
Repair harness.
CHECK NATS RELEASE SIGNAL.
1) Connect control unit connector and
NATS IMMU connector.
2) Check voltage between control unit
terminal
U26and ground.
OK
ENG
Check NATS system.
Replace super lock control unit.
Ignition switch conditionVoltage
[V]
LOCK
12
More than 10 seconds after ignition
switch turned to ªONº position
For 10 seconds after ignition
switch turned to ªONº positionPulse
YEL314D
YEL315D
H
H
H
POWER DOOR LOCK Ð SUPER LOCK Ð
Trouble Diagnoses (Cont'd)
EL-166

Schematic
YEL159D
MULTI-REMOTE CONTROL SYSTEM
EL-168

Wiring Diagram Ð MULTI ÐLHD MODELS
YEL160D
MULTI-REMOTE CONTROL SYSTEM
EL-169

LHD MODELS
YEL161D
MULTI-REMOTE CONTROL SYSTEM
Wiring Diagram Ð MULTI Ð (Cont'd)
EL-170