2007 NISSAN LATIO door lock

BACK DOOR LOCK
BL-191
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BACK DOOR HANDLE
Removal
1. Remove the back door finisher lower. Refer to EI-31, "BACK DOOR TRIM" .
2. Disconnect the harness connectors (1), remove the nuts and the
back door handle (A).
3. Release the clips and remove the switch from the housing.
Installation
Installation is in the reverse order of removal.
LIIA2669E
LIIA2609E

VEHICLE SECURITY (THEFT WARNING) SYSTEM
BL-193
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VEHICLE SECURITY (THEFT WARNING) SYSTEMPFP:28491
Component Parts and Harness Connector LocationEIS009AX
LIIA2595E
1. Horn relay H-1 2. BCM M18, M19, M20
(view with glove box removed)3. Intelligent Key unit M52
(if equipped)
4. Combination meter M24 5. Security indicator lamp 6. Front door key cylinder switch LH
D14
7. Front door switch LH B8, RH B108 8. Rear door switch LH B6, RH B116 9. Back door lock assembly (back door
switch) D405 (with back door open)
10. Main power window and door lock/
unlock switch D7, D8
Power window and door lock/unlock
switch RH D10511. Horn (low) E18, E20 12. Horn (high) E21, E22

BL-194
VEHICLE SECURITY (THEFT WARNING) SYSTEM
Revision: June 20062007 Versa
System DescriptionEIS009AY
DESCRIPTION
Operation Flow

Setting the vehicle security system
Initial condition

Ignition switch is in OFF position.
Disarmed phase

When the vehicle is being driven or when any door is open, the vehicle security system is set in the dis-
armed phase on the assumption that the owner is inside or near the vehicle.
Pre-armed phase and armed phase

The vehicle security system turns into the "pre-armed" phase (security lamp illuminates) when the BCM
receives LOCK signal from front door key cylinder switch, keyfob or Intelligent Key after all doors are
closed.

All doors are closed after front doors are locked by key or door lock and unlock switch.
The security indicator lamp illuminates for 30 seconds. then, the system automatically shifts into the "armed"
phase.
Canceling the set vehicle security system
The armed phase is canceled when the driver unlocks the doors with the key, keyfob or Intelligent Key.
Activating the alarm operation of the vehicle security system
Make sure the system is in the armed phase.
When one of the following operations is performed, the system sounds the horns and flashes the headlamps
for about 50 seconds.
1. Any door is opened before unlocking door with key, keyfob or Intelligent Key.
2. Door is unlocked without using key, keyfob or Intelligent Key.
POWER SUPPLY AND GROUND
Power is supplied at all times

through 10A fuse [No.13, located in the fuse block (J/B)]

to combination meter terminal 27 (security indicator lamp)

through 40A fusible link (letter g , located in the fuse and fusible link box)

to BCM terminal 70

through 10A fuse [No. 8, located in the fuse block (J/B)]

to BCM terminal 57
PIIA1367E

VEHICLE SECURITY (THEFT WARNING) SYSTEM
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through 10A fuse (No. 28, located in the fuse and fusible link box)

to horn relay terminal 2

through 15A fuse (No. 52, located in the IPDM E/R)

to IPDM E/R internal CPU.

through 20A fuse (No. 53, located in the IPDM E/R)

to IPDM E/R internal CPU.
With the ignition switch in the ACC or ON position, power is supplied

through 10A fuse [No. 20, located in the fuse block (J/B)]

to BCM terminal 11.
With the ignition switch in the ON or START position, power is supplied

through 10A fuse [No. 6, located in the fuse block (J/B)]

to BCM terminal 38.
Ground is supplied

to BCM terminal 67

through body grounds M57 and M61.
INITIAL CONDITION TO ACTIVATE THE SYSTEM
The operation of the vehicle security system is controlled by the doors.
To activate the vehicle security system, BCM must receive signals indicating the ignition switch is OFF, doors
are closed and locked.
When a door is open, BCM terminal 12, 13, 43, 47 or 48 receives a ground signal from each door switch. In
addition to BCM, when back door is open, the Intelligent Key unit terminal 23 receives a ground signal from
back door through BCM terminal 30.
When front door LH is unlocked, BCM terminal 46 receives a signal from terminal 6 of main power window and
door lock/unlock switch.
When front door RH is unlocked, BCM terminal 46 receives a signal from terminal 2 of power window and door
lock/unlock switch RH.
VEHICLE SECURITY SYSTEM ALARM OPERATION
The vehicle security system is triggered by

opening a door

unlocking door without using the key, keyfob or Intelligent Key.
The vehicle security system will be triggered once the system is in armed phase,

when BCM receives a ground signal at terminals 12, 13, 47, 48 (front or rear door switch), or terminal 43
(back door switch).
When the vehicle security system is triggered, ground is supplied intermittently

from IPDM E/R terminal 45

to horn relay terminal 1.
The headlamps flash and the horn sounds intermittently.
The alarm automatically turns off after 50 seconds, but will reactivate if the vehicle is tampered with again.
VEHICLE SECURITY SYSTEM DEACTIVATION
To deactivate the vehicle security system, a door must be unlocked with the key, keyfob or Intelligent Key.
When the key is used to unlock the driver door, BCM terminal 7 receives signal

from terminal 3 of the front door key cylinder switch LH.
When the BCM receives this signal or unlock signal from keyfob or Intelligent Key or front door key cylinder
switch LH, the vehicle security system is deactivated. (Disarmed phase)
PANIC ALARM OPERATION
Intelligent Key and remote keyless entry system may or may not operate vehicle security system (horn and
headlamps) as required.
When the remote keyless entry system is triggered, ground is supplied intermittently

from IPDM E/R terminal 45

to horn relay terminal 1.
The headlamp flashes and the horn sounds intermittently.

BL-202
VEHICLE SECURITY (THEFT WARNING) SYSTEM
Revision: June 20062007 Versa
Terminals and Reference Values for BCMEIS00A3H
Refer to BCS-12, "Terminals and Reference Values for BCM" .
Terminals and Reference Values for Intelligent Key UnitEIS009E2
Refer to BL-106, "Terminals and Reference Values for Intelligent Key Unit" .
CONSULT-II Function (BCM)EIS009B2
CONSULT-II can display each diagnostic item using the diagnostic test modes shown following.
CONSULT-II START PROCEDURE
Refer to GI-38, "CONSULT-II Start Procedure" .
CONSULT-II APPLICATION ITEM
Work Support
Data Monitor
BCM
diagnostic test itemDiagnostic mode Description
Inspection by partWORK SUPPORTSupports inspections and adjustments. Commands are transmitted to the
BCM for setting the status suitable for required operation, input/output sig-
nals are received from the BCM and received date is displayed.
DATA MONITOR Displays BCM input/output data in real time.
ACTIVE TESTOperation of electrical loads can be checked by sending drive signal to
them.
SELF-DIAG RESULTS Displays BCM self-diagnosis results.
CAN DIAG SUPPORT MNTRThe result of transmit/receive diagnosis of CAN communication can be
read.
ECU PART NUMBER BCM part number can be read.
CONFIGURATION Performs BCM configuration read/write functions.
Test Item Description
SECURITY ALARM SET This mode can confirm and change security alarm ON-OFF setting.
THEFT ALM TRGThe switch which triggered vehicle security alarm is recorded. This mode is able to confirm and
erase the record of vehicle security alarm. The trigger data can be erased by touching “CLEAR”
on CONSULT-II screen.
Monitored Item Description
IGN ON SW Indicates [ON/OFF] condition of ignition switch.
ACC ON SW Indicates [ON/OFF] condition of ignition switch in ACC position.
I-KEY LOCK Indicates [ON/OFF] condition of lock signal from keyfob.
I-KEY UNLOCK Indicates [ON/OFF] condition of unlock signal from keyfob.
I-KEY TRUNK Indicates [ON/OFF] condition of trunk open signal from keyfob.
TRNK OPNR SW Indicates [ON/OFF] condition of trunk opener switch.
TRUNK CYL SW Indicates [ON/OFF] condition of trunk key cylinder switch.
TRNK OPN MNTR Indicates [ON/OFF] condition of trunk lid status.
DOOR SW-DR Indicates [ON/OFF] condition of front door switch LH.
DOOR SW-AS Indicates [ON/OFF] condition of front door switch RH.
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.
KEY CYL LK SW Indicates [ON/OFF] condition of lock signal from key cylinder switch.
KEY CYL UN SW Indicates [ON/OFF] condition of unlock signal from key cylinder switch.

VEHICLE SECURITY (THEFT WARNING) SYSTEM
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Active Test
CDL LOCK SW Indicates [ON/OFF] condition of lock signal from door lock/unlock switch LH and RH.
CDL UNLOCK SW Indicates [ON/OFF] condition of unlock signal from door lock/unlock switch LH and RH.Monitored Item Description
Test Item Description
THEFT INDThis test is able to check security indicator lamp operation. The lamp will be turned on when “ON”
on CONSULT-II screen is touched.
VEHICLE SECURITY HORNThis test is able to check vehicle security horn operation. The horns will be activated for 0.5 sec-
onds after “ON” on CONSULT-II screen is touched.
HEADLAMP (HI)This test is able to check vehicle security lamp operation. The headlamps will be activated for 0.5
seconds after “ON” on CONSULT-II screen is touched.

BL-204
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Revision: June 20062007 Versa
Trouble DiagnosisEIS009B3
WORK FLOW

For “POWER DOOR LOCK SYSTEM” diagnosis, refer to BL-23, "POWER DOOR LOCK SYSTEM" .

For "INTELLIGENT KEY SYSTEM” diagnosis, refer to BL-80, "INTELLIGENT KEY SYSTEM" .

For “REMOTE KEYLESS ENTRY SYSTEM” diagnosis, refer to BL-54, "REMOTE KEYLESS ENTRY
SYSTEM" .
LIIA2635E

BL-206
VEHICLE SECURITY (THEFT WARNING) SYSTEM
Revision: June 20062007 Versa
Symptom ChartEIS009B5
*1 : Make sure the system is in the armed phase.SYMPTOM PROCEDURE Diagnostic procedure
1Vehicle security
system cannot be
set by ····AII itemsDiagnostic Procedure 1 (Door switch check)
Refer to BL-207, "
Diagnostic Procedure 1" .
If the above systems are “OK”, replace BCM. Refer to BCS-25, "
Removal
and Installation of BCM" .
Lock/unlock switchDiagnostic Procedure 6 (Door lock/unlock switch check)
Refer to BL-211, "
Diagnostic Procedure 6" .
If the above systems are “OK”, check main power window and door lock/
unlock switch. Refer to GW-17, "
POWER WINDOW SYSTEM" .
Door outside key (driver)Diagnostic Procedure 3 (Door key cylinder switch check)
Refer to BL-211, "
Diagnostic Procedure 3" .
If the above systems are “OK”, check main power window and door lock/
unlock switch. Refer to GW-17, "
POWER WINDOW SYSTEM" .
Intelligent keyCheck Intelligent Key entry function. Refer to BL-82, "
System Description"
If the above systems are “OK”, replace BCM. Refer to BCS-25, "Removal
and Installation of BCM" .
Keyfob (without Intelligent Key)Check remote keyless entry function. Refer to BL-61, "
Preliminary Check"
.
If the above systems are “OK”, replace BCM. Refer to BCS-25, "
Removal
and Installation of BCM" .
2Security indicator
does not turn
“ON”.Security indicator lampDiagnostic Procedure 2 (Security indicator lamp check)
Refer to BL-210, "
Diagnostic Procedure 2" .
If the above systems are “OK”, replace BCM. Refer to BCS-25, "
Removal
and Installation of BCM" .
3*1 Vehicle secu-
rity system does
not alarm when
····Any door is opened.Diagnostic Procedure 1 (Door switch check)
Refer to BL-207, "
Diagnostic Procedure 1" .
If the above systems are “OK”, replace BCM. Refer to BCS-25, "
Removal
and Installation of BCM" .
4Vehicle security
alarm does not
activate.Horn alarmDiagnostic Procedure 4 (Vehicle security horn alarm check).
Refer to BL-211, "
Diagnostic Procedure 4" .
If the above systems are “OK”, check horn system.
Refer to WW-46, "
HORN" .
Head lamp alarmDiagnostic Procedure 5 (Head lamp alarm check).
Refer to BL-211, "
Diagnostic Procedure 5" .
If the above systems are “OK”, replace BCM. Refer to BCS-25, "
Removal
and Installation of BCM" .
5Vehicle security
system cannot be
canceled by ····Door outside key (driver)Diagnostic Procedure 3 (Door key cylinder switch check).
Refer to BL-211, "
Diagnostic Procedure 3" .
If the above systems are “OK”, check main power window and door lock/
unlock switch. Refer to GW-17, "
POWER WINDOW SYSTEM" .
Intelligent keyCheck Intelligent Key entry function. Refer to BL-82, "
System Description"
If the above systems are “OK”, replace BCM. Refer to BCS-25, "Removal
and Installation of BCM" .
Keyfob (without Intelligent Key)Check remote keyless entry function. Refer to BL-61, "
Preliminary Check"
.
If the above systems are “OK”, replace BCM. Refer to BCS-25, "
Removal
and Installation of BCM" .