NISSAN TERRANO 2002 Service Repair Manual

YEL156D
POWER DOOR LOCK Ð SUPER LOCK Ð
Wiring Diagram Ð S/LOCK Ð (Cont'd)
EL-155

YEL157D
POWER DOOR LOCK Ð SUPER LOCK Ð
Wiring Diagram Ð S/LOCK Ð (Cont'd)
EL-156

YEL158D
POWER DOOR LOCK Ð SUPER LOCK Ð
Wiring Diagram Ð S/LOCK Ð (Cont'd)
EL-157

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

POWER SUPPLY AND GROUND CIRCUIT CHECK
Main power supply circuit check
Terminals Ignition switch position
!@LOCK ACC ON
U09GroundBattery
voltageBattery
voltageBattery
voltage
Ground circuit check
Terminals Continuity
U16- Ground Yes
YEL299D
YEL300D
POWER DOOR LOCK Ð SUPER LOCK Ð
Trouble Diagnoses (Cont'd)
EL-160

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.
IHarness for open or short-circuit
between control unit and door unlock
sensor
Terminals
Condi-
tionVoltage
[V]
!@
Driver
side
U35GroundLockedApprox.
2
(Approx.
20 sec.)
Unlocked 0
Pas-
senger
side
U36GroundLockedApprox.
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-161

DIAGNOSTIC PROCEDURE 2
(Door key cylinder switch check)
CHECK DOOR KEY CYLINDER SWITCH
INPUT SIGNAL (LOCK SIGNAL).
Check voltage between time control unit
connector terminal
U29and ground.
NG
EOK
Door key cylinder switch is
OK.
CHECK DOOR KEY CYLINDER SWITCH.
1) Disconnect door key cylinder switch
connector.
2) Check continuity between door key cyl-
inder switch terminals.
OK
ENG
Replace key cylinder
switch.
Check the following:
IHarness connectors
IDoor key cylinder switch ground circuit
IHarness for open or short-circuit
between super lock control unit and
door key cylinder.
Key cylinder switch operation Voltage [V]
Between neutral and lock 0
Unlock/neutral Approx. 5
Terminals Key position Continuity
q
1-q2
Neutral No
Between neu-
tral and lockYe s
Unlock/neutral No
Full stroke
(Lock)No
YEL303D
YEL304D
H
H
POWER DOOR LOCK Ð SUPER LOCK Ð
Trouble Diagnoses (Cont'd)
EL-162

DIAGNOSTIC PROCEDURE 3
(Door lock actuator check)
CHECK DOOR LOCK ACTUATOR CIR-
CUIT.
Check voltage for door lock actuator.
Before operating passenger side knob
lock switch, close all doors.
OK
ENG
Door lock actuator is OK.
CHECK DOOR LOCK ACTUATOR.
1. Disconnect door lock actuator connec-
tor.
2. Apply 12V direct current to door lock
actuator and check operation.
Front door
Rear door
NG
EOK
Check harness between
control unit and door lock
actuator.
Replace door lock actuator assembly.
Knob lock
switch
conditionTerminals
Voltage
(V)
!@
Unlock,
Lock
U41GroundApprox.
12
(Approx.
5 sec-
onds) Lock,
Unlock
U44Ground
Door lock actuator
operationTerminals
!@
Unlocked,
Lockedq
6q3
Locked,
Unlockedq3: (LHD)
q
4: (RHD)q
6: (LHD)
q
1: (RHD)
Door lock actuator
operationTerminals
!@
Unlocked,
Lockedq
6: (LH)
q
1: (RH)q
3: (LH)
q
4: (RH)
Locked,
Unlockedq
3: (LH)
q
4: (RH)q
6: (LH)
q
1: (RH)
YEL305D
YEL306D
YEL307D
H
H
POWER DOOR LOCK Ð SUPER LOCK Ð
Trouble Diagnoses (Cont'd)
EL-163

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