2008 NISSAN LATIO turn signal

POWER DOOR LOCK SYSTEM
BL-41
< SERVICE INFORMATION >
C
D
E
F
G
H
J
K
L
MA
B
BL
N
O
P
OK or NG
OK >> GO TO 3.
NG >> Repair or replace harness.
3.CHECK DOOR SWITCHES
Check continuity between door switch terminal and switch case ground.
OK or NG
OK >> Check door switch case ground condition.
NG >> Replace door switch.
Key Switch (Insert) CheckINFOID:0000000001703967
1.CHECK KEY SWITCH INPUT SIGNAL
With CONSULT-III
Check key switch "KEY ON SW" in DATA MONITOR mode with CONSULT–III. Refer to BL-36, "
CONSULT-III
Function (BCM)" .
• When key is inserted into ignition key cylinder:
• When key is removed from ignition key cylinder:
Without CONSULT-III
Check voltage between BCM connector and ground.
OK or NG
OK >> Key switch circuit is OK.
NG-1 >> GO TO 2 (with Intelligent Key).
NG-2 >> GO TO 3 (without Intelligent Key).
2.CHECK KEY SWITCH (WITH INTELLIGENT KEY)
1. Turn ignition switch OFF.
2. Disconnect key switch and ignition knob switch connector.
3. Check ignition knob switch key switch and ignition knob key switch.2 - Ground : Continuity should not exist.
1 - Ground : Continuity should not exist.
Component TerminalsCondition of
switchContinuity
Front door switch
LH/RH2 – Case groundPushed No
Released Yes
Rear door switch
LH/RH1 – Case groundPushed No
Released Yes
LIIA0550E
KEY ON SW : ON
KEY ON SW : OFF
ConnectorTe r m i n a l s
ConditionVoltage (V)
(Approx.)
( + ) ( – )
M18 37 GroundKey is inserted. Battery voltage
Key is removed. 0
LIIA0567E

BL-42
< SERVICE INFORMATION >
POWER DOOR LOCK SYSTEM
OK or NG
OK >> Check the following.
• 10A fuse (No. 31, located in fuse and fusible link
block)
• Harness for open or short between key switch and ignition knob switch and fuse
• Harness for open or short between BCM and key switch and ignition knob switch
NG >> Replace key switch and ignition knob switch.
3.CHECK KEY SWITCH (WITHOUT INTELLIGENT KEY)
1. Turn ignition switch OFF.
2. Disconnect key switch and key lock solenoid connector.
3. Check key switch.
OK or NG
OK >> Check the following.
• 10A fuse [No. 14, located in fuse block (J/B)]
• Harness for open or short between key switch and
fuse
• Harness for open or short between BCM and key
switch
NG >> Replace key switch and key lock solenoid.
Door Lock and Unlock Switch CheckINFOID:0000000001703968
1.CHECK DOOR LOCK AND UNLOCK INPUT SIGNAL
With CONSULT-III
Check door lock and unlock switch (“CDL LOCK SW” and “CDL UNLOCK SW”) in DATA MONITOR mode with
CONSULT-III.
Without CONSULT-III
Check voltage between BCM connector and ground
Te r m i n a l
Condition Continuity
Key switch and ignition knob
switch
12KeyInserted Yes
Removed No
PIIB6411E
Terminals Condition Continuity
1 – 2Key is inserted. Yes
Key is removed. No
PIIB6411E
Test item Condition
CDL LOCK SWDoor lock and unlock switch is turned to LOCK : ON
Other than above : OFF
CDL UNLOCK SWDoor lock and unlock switch is turned to UNLOCK : ON
Other than above : OFF

POWER DOOR LOCK SYSTEM
BL-45
< SERVICE INFORMATION >
C
D
E
F
G
H
J
K
L
MA
B
BL
N
O
P
5. Check continuity between BCM connector M19 terminal 46 and
ground.
OK or NG
OK >> Replace BCM. Refer to BCS-18, "Removal and Installa-
tion of BCM" .
NG >> Repair or replace harness.
Front Door Lock Assembly LH (Actuator) CheckINFOID:0000000001703969
1.CHECK FRONT DOOR LOCK ASSEMBLY LH (ACTUATOR) HARNESS
1. Turn ignition switch OFF.
2. Disconnect BCM and front door lock assembly LH (actuator).
3. Check continuity between BCM connector (A) M20 terminals 59,
65 and front door lock assembly LH (actuator) connector (B) D3
terminals 2, 3.
4. Check continuity between BCM connector (A) M20 terminals 59,
65 and body ground.
OK or NG
OK >> GO TO 2.
NG >> Repair or replace harness.
2.CHECK FRONT DOOR LOCK ASSEMBLY LH SIGNAL
1. Reconnect BCM.2 - 46 : Continuity should exist.
6 - 46 : Continuity should exist.
46 - Ground : Continuity should not exist.
W I I A 1111 E
Connector Terminal Connector Terminal Continuity
A: M2059
B: D32Yes
65 3 Yes
Connector Terminals Continuity
A: M2059
GroundNo
65 No
LIIA2525E

POWER DOOR LOCK SYSTEM
BL-47
< SERVICE INFORMATION >
C
D
E
F
G
H
J
K
L
MA
B
BL
N
O
P
OK >> GO TO 2.
NG >> Check the following:
• Without Intelligent Key: Repair or replace harness.
• With Intelligent Key: For front doors, repair or replace harness.
• With Intelligent Key: For rear door, repair or replace harness or passenger select unlock relay.
2.CHECK DOOR LOCK ACTUATOR SIGNAL
1. Reconnect BCM.
2. Check voltage between BCM connector M20 terminals 65, 66
and ground.
OK or NG
OK >> Replace front door lock assembly RH or rear door lock actuator LH/RH. Refer to BL-150,
"Removal and Installation" or BL-153, "Removal and Installation" .
NG >> Replace BCM. Refer to BCS-18, "
Removal and Installation of BCM" .
Front Door Key Cylinder Switch LH CheckINFOID:0000000001703971
1.CHECK FRONT DOOR KEY CYLINDER SWITCH LH
With CONSULT-III
Check front door key cylinder switch ("KEY CYL LK-SW") and ("KEY CYL UN-SW) in DATA MONITOR mode
in CONSULT–III. Refer to BL-36, "
CONSULT-III Function (BCM)" .
• When key inserted in front key cylinder is turned to LOCK:
• When key inserted in front key cylinder is turned to UNLOCK:
Without CONSULT-III
Check voltage between BCM connector M18 terminals 7, 8 and
ground.
OK or NG
OK >> Front door key cylinder switch LH signal is OK.
NG >> GO TO 2.
2.CHECK FRONT DOOR KEY CYLINDER SWITCH LH GROUND HARNESS
ConnectorTe r m i n a l s
ConditionVoltage (V)
(Approx.)
(+) (-)
M2065
GroundMain power window and
door lock/unlock switch is
turned to UNLOCK0 → Battery voltage
66Main power window and
door lock/unlock switch is
turned to LOCK0 → Battery voltage
LIIA1357E
KEY CYL LK-SW : ON
KEY CYL UN-SW : ON
ConnectorTe r m i n a l s
ConditionVoltage (V)
(Approx.)
( + ) ( – )
M187
GroundNeutral/Lock 5
Unlock 0
8Neutral/Unlock 5
Lock 0
WIIA1247E

BL-52
< SERVICE INFORMATION >
REMOTE KEYLESS ENTRY SYSTEM
When the key switch is ON (key is inserted in ignition key cylinder), power is supplied
• through 10A fuse [No. 14, located in the fuse block (J/B)]
• through key switch terminals 2 and 1
• to BCM terminal 37.
When the ignition switch is ACC or ON, power is supplied
• through 10A fuse [No. 20, located in the fuse block (J/B)]
• to BCM terminal 11.
Ground is supplied
• to BCM terminal 67
• through body grounds M57 and M61.
When the front door switch LH is ON (door is OPEN), ground is supplied
• to BCM terminal 47
• through front door switch LH terminal 2
• through front door switch LH case ground.
When the front door switch RH is ON (door is OPEN), ground is supplied
• to BCM terminal 12
• through front door switch RH terminal 2
• through front door switch RH case ground.
When the rear door switch LH is ON (door is OPEN), ground is supplied
• to BCM terminal 48
• through rear door switch LH terminal 1
• through rear door switch LH case ground.
When the rear door switch RH is ON (door is OPEN), ground is supplied
• to BCM meter terminal 13
• through rear door switch RH terminal 1
• through rear door switch RH case ground.
When the back door lock assembly (back door switch) (hatchback) is ON (back door is OPEN), ground is sup-
plied
• to BCM terminal 43
• through back door lock assembly (back door switch) terminals 3 and 4
• through body grounds B117, B132 and D402.
Keyfob signal is inputted to BCM from remote keyless entry receiver.
The remote keyless entry system controls operation of the
• power door lock
• hazard reminder
• auto door lock
• panic alarm
• room lamp
OPERATED PROCEDURE
Power Door Lock Operation
BCM receives a LOCK signal from keyfob. BCM locks all doors with input of LOCK signal from keyfob.
BCM receives a UNLOCK signal from keyfob. BCM unlocks all doors with input of UNLOCK signal from key-
fob.
Hazard and Horn Reminder
When the doors are locked or unlocked by keyfob, power is supplied to sound horns and flash hazard warning
lamps as follows
• LOCK operation: 3 or 4 mode (lamps flash twice)
• UNLOCK operation: 2 or 4 mode (lamps flash once)
• Horns sound once with LOCK function when this feature is set ON.
The hazard reminder has modes 1, 2, 3 or 4. The horn reminder can be turned ON/OFF with any LOCK mode.
Operating function of hazard reminder
Hazard and horn reminders do not operate if any door switch is ON (any door is OPEN).
How to change hazard and horn reminder modes
Mode 1 Mode 2 Mode 3 Mode 4
Keyfob operation Lock Unlock Lock Unlock Lock Unlock Lock Unlock
Hazard warning lamp
flash— — — Twice Once — Once Twice
Horns sound (ON/OFF) ON: once — ON: once — ON: once — ON: once —

REMOTE KEYLESS ENTRY SYSTEM
BL-53
< SERVICE INFORMATION >
C
D
E
F
G
H
J
K
L
MA
B
BL
N
O
P
With CONSULT-III
Hazard reminder can be changed using “HAZARD LAMP SET” mode in “WORK SUPPORT”.
Horn reminder can be changed using “HORN CHIRP SET” mode in “WORK SUPPORT”.
Refer to BL-58, "
CONSULT-III Function (BCM)" .
Without CONSULT-III
Refer to Owner's Manual for instructions.
Auto Door Lock Operation
Auto lock function signal is sent for operation when any of the following signals are not sent within 1 minute
after the unlock signal is sent from the keyfob:
• when door switch is turned ON for open.
• when the key switch is turned ON.
• when the lock signal is sent from the keyfob.
Auto door lock mode can be changed using “AUTO LOCK SET” mode in “WORK SUPPORT”.
Refer to BL-58, "
CONSULT-III Function (BCM)" .
Panic Alarm Operation
When key switch is OFF (when ignition key is not inserted in key cylinder), BCM turns on and off horn intermit-
tently with input of PANIC ALARM signal from keyfob.
BCM outputs to IPDM E/R for panic alarm signal (horn signal) as DATA LINE (CAN H line and CAN L line).
The alarm automatically turns off after 25 seconds or when BCM receives any signal from keyfob.
Panic alarm operation mode can be changed using “PANIC ALARM SET” mode in “WORK SUPPORT”.
Refer to BL-58, "
CONSULT-III Function (BCM)" .
Interior Lamp Operation
When the following conditions come:
• condition of interior lamp switch is in the DOOR position;
• door switch OFF (when all the doors are closed);
Remote keyless entry system turns on interior lamp (for 30 seconds) with input of UNLOCK signal from key-
fob. For detailed description, refer to LT- 8 9
.
CAN Communication System DescriptionINFOID:0000000001703975
Refer to LAN-6 .

REMOTE KEYLESS ENTRY SYSTEM
BL-59
< SERVICE INFORMATION >
C
D
E
F
G
H
J
K
L
MA
B
BL
N
O
P
AUTO LOCK SET
TRUNK OPEN
Data Monitor
Active Test
Work FlowINFOID:0000000001703982
1. Check the symptom and customer's requests.
2. Understand outline of system. Refer to BL-51, "
System Description" .
3. Confirm that power door lock system operates normally.
Refer to BL-22
.
4. Repair or replace any malfunctioning parts.
Refer to BL-60, "
Trouble Diagnosis Symptom Chart" .
5. Does remote keyless entry system operate normally? If Yes, GO TO 6. If No, GO TO 4.
6. INSPECTION END
MODE 1 MODE 2 MODE 3
Auto locking function 30 seconds Nothing 1 minutes
MODE 1 MODE 2 MODE 3
Keyfob operation 0.5 seconds Nothing 1.5 seconds
Monitored Item Description
IGN ON SW Indicates [ON/OFF] condition of ignition switch in ON position.
KEY ON SW Indicates [ON/OFF] condition of key switch.
ACC ON SW Indicates [ON/OFF] condition of ignition switch in ACC position.
KEYLESS LOCK Indicates [ON/OFF] condition of lock signal from keyfob.
KEYLWSS UNLOCK Indicates [ON/OFF] condition of unlock signal from keyfob.
KYLS TRNK/HAT This is displayed even when it is not equipped.
KEYLESS PSD This is displayed even when it is not equipped.
DOOR SW-DR Indicates [ON/OFF] condition of front door switch driver side.
DOOR SW-AS Indicates [ON/OFF] condition of front door switch passenger side.
DOOR SW-RR Indicates [ON/OFF] condition of rear door switch RH.
DOOR SW-RL Indicates [ON/OFF] condition of rear door switch LH.
BACK DOOR SW Indicates [ON/OFF] condition of back door switch (hatchback).
TRNK/HAT MNTR Indicates [ON/OFF] condition of trunk room lamp switch (sedan).
CDL LOCK SW Indicates [ON/OFF] condition of lock signal from door lock and unlock switch.
CDL UNLOCK SW Indicates [ON/OFF] condition of unlock signal from door lock and unlock switch.
KEYLESS PANIC Indicates [ON/OFF] condition of panic alarm signal from keyfob.
Test Item Description
INT LAMPThis test is able to check interior room lamp operation.
The interior room lamp turns on when “ON” on CONSULT-III screen is touched.
FLASHERThis test is able to check right hazard reminder operation.
The right hazard lamp turns on when “ON” on CONSULT-III screen is touched.
DOOR LOCKThis test is able to check door lock actuator operation.
• The all door lock actuator are locked when “ALL LOCK” on CONSULT-III screen is touched.
• The all door lock actuator are unlocked when “ALL UNLOCK” on CONSULT-III screen is touched.
TRUNK/BACK DOOR This is displayed even when it is not equipped.
POWER SLIDE DOOR This is displayed even when it is not equipped.

REMOTE KEYLESS ENTRY SYSTEM
BL-65
< SERVICE INFORMATION >
C
D
E
F
G
H
J
K
L
MA
B
BL
N
O
P
Check continuity between back door lock assembly connector D405
terminal 4 and ground.
OK or NG
OK >> Back door switch circuit is OK.
NG >> Repair or replace harness.
Door Switch Check (Sedan)INFOID:0000000001703987
1.CHECK DOOR SWITCHES INPUT SIGNAL
With CONSULT-III
Check door switches ("DOOR SW-DR", "DOOR SW-AS", "DOOR SW-RL", "DOOR SW-RR") in DATA MONI-
TOR mode with CONSULT–III. Refer to BL-58, "
CONSULT-III Function (BCM)".
• When doors are open:
• When doors are closed:
Without CONSULT-III
Check voltage between BCM connector M18 or M19 terminals 12, 13, 47, 48 and ground.
OK or NG
OK >> Door switch circuit is OK.
NG >> GO TO 2.
2.CHECK DOOR SWITCH CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect door switch and BCM.
3. Check continuity between door switch connector B8 (Front LH) or B108 (Front RH) terminal 2, B6 (Rear
LH) or B116 (Rear RH) terminal 1 and BCM connector M18, M19 terminals 12, 13, 47 and 48.4 - Ground : Continuity should exist.
WIIA1246E
DOOR SW-DR : ON
DOOR SW-AS : ON
DOOR SW-RL : ON
DOOR SW-RR : ON
DOOR SW-DR : OFF
DOOR SW-AS : OFF
DOOR SW-RL : OFF
DOOR SW-RR : OFF
Connector ItemTe r m i n a l s
ConditionVoltage (V)
(Approx.)
( + ) ( – )
M19Front door
switch LH47
GroundOpen
↓
Closed0
↓
Battery voltage Rear door
switch LH48
M18Front door
switch RH12
Rear door
switch RH13
LIIA1177E