2004 NISSAN TERRANO Service Repair Manual

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
EOKDoor 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
I Door key cylinder switch ground circuit
I Harness for open or short-circuit
between time control unit and door key
cylinder.
Key cylinder switch operation Voltage (V)
Lock 0
Unlock/neutral Approx. 5
Terminals Key position Continuity
q
1-q2Unlock/neutral No
Lock Yes
YEL907E
NEL614
H
H
POWER DOOR LOCK Ð SUPER LOCK Ð
Trouble Diagnoses (Cont'd)
EL-196
http://vnx.su/

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
ENGDoor 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
condition Terminals
Voltage
(V)
!@
Unlock ,
Lock
U41Ground Approx.
12
(Approx. 5 sec-onds)U42
Lock ,
UnlockU44Ground
Door lock actuator operation Terminals
!@
Unlocked ,
Locked q
6q3
Locked
,
Unlocked q3q6
Door lock actuator
operation Terminals
!@
Unlocked ,
Locked q
6: (LH)
q
1: (RH) q
3: (LH)
q
4: (RH)
Locked ,
Unlocked q
3: (LH)
q
4: (RH) q
6: (LH)
q
1: (RH)
YEL911E
YEL306D
YEL307D
H
H
POWER DOOR LOCK Ð SUPER LOCK Ð
Trouble Diagnoses (Cont'd)
EL-197
http://vnx.su/

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
ENGSuper 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- dition Terminals
Voltage
(V)
!@
Lock (Set)
U40Ground Approx. 12
Unlock
(Released)
U44Ground
Super lock actuator
operation Terminals
Connec-
tion from
lever A to lever B
!@
Released , Set q
1q4Discon-
nect
Set ,
Released q
4q1Connect
Super lock
actuator
operation Terminals
Connec-
tion from
lever A to lever B
!@
Released , Set q
1: (LH)
q
6: (RH) q
4: (LH)
q
3: (RH) Discon-
nect
Set ,
Released q
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-198
http://vnx.su/

DIAGNOSTIC PROCEDURE 5
(Door switch check)
CHECK DOOR SWITCH INPUT SIGNAL.
Check voltage between fuse block (J/B)
and ground.
NG
EOKDoor switch is OK.
CHECK DOOR SWITCH.
1) Disconnect door switch connector.
2) Check continuity between door switch terminals.
OK
ENG Replace door switch.
Check the following.
IDoor switch ground condition
I Harness for open or short between con-
trol unit and door switch
Termi-
nals Condition Voltage (V)
Driver
side door
B07Opened 0 Closed Approx. 12
Other
door
B01Opened 0 Closed Approx. 12
Terminals Condition Continuity
Other
door
switches q
1-
ground Closed No
Open Yes
YEL312D
YEL913E
H
H
POWER DOOR LOCK Ð SUPER LOCK Ð
Trouble Diagnoses (Cont'd)
EL-199
http://vnx.su/

DIAGNOSTIC PROCEDURE 6
(NATS release signal check)
Does engine start properly?
Ye s
ENoCheck 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-
nal q
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 time control unit.
Ignition switch condition Voltage
(V)
LOCK 12
More than 10 seconds after ignition
switch turned to ªONº position
For 10 seconds after ignition
switch turned to ªONº position Pulse
YEL314D
YEL315D
H
H
H
POWER DOOR LOCK Ð SUPER LOCK Ð
Trouble Diagnoses (Cont'd)
EL-200
http://vnx.su/

DIAGNOSTIC PROCEDURE 7
(Ignition switch check)
CHECK IGNITION SWITCH INPUT SIG-
NAL.
Check voltage between control unit termi-
nal
U22and ground.
NG
EOKIgnition switch is OK.
CHECK IGNITION SWITCH POWER
SUPPLY.
Check voltage between ignition switch
harness terminal q
2and ground.
Battery voltage should exist.
OK
ENG Check the following.
I10A fuse [No.
16,
located in fuse block
(J/B)]
I Harness for open or
short between ignition
switch and fuse
CHECK IGNITION SWITCH.
1. Disconnect ignition switch connector.
2. Check continuity between ignition switch terminals.
OK
ENG Replace ignition switch.
Check harness for open or short between
control unit and ignition switch.
Condition of key switch Voltage (V)
Key is inserted Approx. 12Key withdrawn 0
Terminals Condition Continuity
q
1-q2
Key is
inserted. Ye s
Key is with- drawn. No
DIAGNOSTIC PROCEDURE 8
(Ignition switch ªONº circuit check)
Terminals
Ignition switch position
!@ OFFACC ON
U01Ground 0V0V Battery voltage
If NG, check the following.
I10A fuse [No.
26, located in the fuse block (J/B)]
IHarness for open or short
YEL316D
YEL317D
YEL914E
YEL319D
H
H
H
POWER DOOR LOCK Ð SUPER LOCK Ð
Trouble Diagnoses (Cont'd)
EL-201
http://vnx.su/

System Description
POWER AND GROUND
Power is supplied at all times
Ito time control unit terminal U09 and
I to door lock switch relay terminal 1
I through 10A fuse [No. 5, located in the fuse block (J/B)], and
I to key switch terminal 2
I through 10A fuse [No. 16, located in the fuse block (J/B)].
When the key switch is ON (ignition key is inserted in key cylinder), power is supplied
I through key switch terminal 1
I to time control unit terminal U22.
When the door switch driver side is ON (door is OPEN), ground is supplied
I to time control unit terminal U06
I through door switch driver side terminal 1 and case ground.
When any of the other door switches is ON (door is OPEN), ground is supplied
I to time control unit terminal U07
I through door switch terminal 1 and case ground.
When lock/unlock switch is LOCK, ground is supplied
I to power window main switch terminal 3
I through body grounds B10 and B18.
Door lock operation signal is supplied
I through power window main switch terminal 14
I to door lock switch relay terminal 2.
With power and ground supplied, door lock switch relay is energized, and the door lock operation signal is
supplied to time control unit terminal U35.
Door unlock operation signal is supplied
I through power window main switch terminal 7
I to time control unit terminal U37.
Remote controller signal is inputted to time control unit (The antenna of the system is combined with time
control unit).
FUNCTION
Multi-remote control system has the following function.
I Door lock (and set super lock)
I Door unlock (and release super lock)
I Hazard reminder
LOCK OPERATION
To lock door by multi-remote controller, the key switch must be at OFF.
When the LOCK signal is input to time control unit (the antenna of the system is combined with time control
unit), time control unit controls to lock doors and set super lock (models with super lock).
UNLOCK OPERATION
Normal Mode
When UNLOCK signal is input to time control unit (the antenna of the system is combined with time control
unit), time control unit controls to unlock doors and release super lock (models with super lock).
Anti Hi-jack Mode
When the UNLOCK signal is input to time control unit (the antenna of the system is combined with time con-
trol unit), time control unit controls to unlock driver's door and release super lock (models with super lock).
Then, if an unlock signal is sent from the remote controller again within 5 seconds, all other doors will be
unlocked.
HAZARD REMINDER
When the doors are locked or unlocked by multi-remote controller, supply power to turn lamps hazard reminder
flashes as follows
ILock operation: Flash once
I Unlock operation: Flash twice
MULTI-REMOTE CONTROL SYSTEM
EL-202
http://vnx.su/

AUTO DOOR LOCK OPERATION
Auto lock function signal is sent for operation when any of the following signals are not sent within 5 minutes
after the unlock signal is sent from the multi-remote controller:
Iwhen door switch is turned ON for open
I when the ignition switch is turned ON
I when the lock signal is sent from the multi-remote controller
I when ignition switch is inserted in ignition key cylinder
MULTI-REMOTE CONTROLLER ID CODE ENTRY
A maximum of four remote controllers can be entered.
To enter ID code entry, the following signals must be input to the time control unit.
IIgnition switch (ON)
I Signal from remote controller
For detailed procedure, refer to ªID Code Entry Procedureº in EL-215.
MULTI-REMOTE CONTROL SYSTEM
System Description (Cont'd)
EL-203
http://vnx.su/