2009 NISSAN LATIO trunk

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.
KEYLESS LOCK* Indicates [ON/OFF] condit ion of lock signal from keyfob.
KEYLESS UNLOCK* Indicates [ON/OFF] condit ion of unlock signal from keyfob.
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] conditio n of trunk open signal from keyfob.
TRNK OPNR SW Indicates [ON/OFF] condition of trunk opener switch.
TRUNK CYL SW Indicates [ON/OFF] condit ion 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.
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. Test Item Description
THEFT IND This test is able to check security indicator lamp operation. The lamp will be turned on when “ON”
on CONSULT-III screen is touched.
VEHICLE SECURITY HORN This test is able to check vehicle security horn operation. The horns will be activated for 0.5 sec-
onds after “ON” on CONSULT-III 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-III screen is touched.

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Symptom Chart
INFOID:0000000004305125
SYMPTOM PROCEDURE Diagnostic procedure
1 Vehicle security
system cannot be
set by ···· AII items
Diagnostic Procedure 1 (Door switch check) (Hatchback)
Refer to BL-238, " Diagnosis Procedure 1 " .
Diagnostic Procedure 7 (Door switch check) (Sedan)
Refer to BL-242, " Diagnosis Procedure 7 " .
Diagnostic Procedure 8 (Trunk switch check) (Sedan)
Refer to BL-244, " Diagnosis Procedure 8 " .
If the above systems are “OK”, replace BCM. Refer to BCS-18, " Removal
and Installation of BCM " .
Lock/unlock switch Diagnostic Procedure 6 (Door lock/unlock switch check)
Refer to BL-242, " Diagnosis Procedure 6 " .
If the above systems are “OK”, check main power window and door lock/un-
lock switch. Refer to GW-19 .
Door outside key (driver) Diagnostic Procedure 3 (Door key cylinder switch check)
Refer to BL-242, " Diagnosis Procedure 3 " .
If the above systems are “OK”, check main power window and door lock/un-
lock switch. Refer to GW-19 .
Intelligent key Check Intelligent Key entry function. Refer to
BL-88, " System Description "
If the above systems are “OK”, replace BCM. Refer to
BCS-18, " Removal
and Installation of BCM " .
Keyfob (without Intelligent Key) Check remote keyless entry function. Refer to
BL-69, " Preliminary Check " .
If the above systems are “OK”, replace BCM. Refer to BCS-18, " Removal
and Installation of BCM " .
2 Security indicator
does not turn
“ON”. Security indicator lamp Diagnostic Procedure 2 (Security indicator lamp check)
Refer to BL-241, " Diagnosis Procedure 2 " .
If the above systems are “OK”, replace BCM. Refer to BCS-18, " Removal
and Installation of BCM " .
3 *1 Vehicle security
system does not
alarm when ···· Any door or trunk is opened. Diagnostic Procedure 1 (Door switch check) (hatchback)
Refer to BL-238, " Diagnosis Procedure 1 " .
Diagnostic Procedure 7 (Door switch check) (Sedan)
Refer to BL-242, " Diagnosis Procedure 7 " .
Diagnostic Procedure 8 (Trunk switch check) (Sedan)
Refer to BL-244, " Diagnosis Procedure 8 " .
If the above systems are “OK”, replace BCM. Refer to BCS-18, " Removal
and Installation of BCM " .
4 Vehicle security
alarm does not ac-
tivate. Horn alarm
Diagnostic Procedure 4 (Vehicle security horn alarm check).
Refer to BL-242, " Diagnosis Procedure 4 " .
If the above systems are “OK”, check horn system.
Refer to WW-38 .
Head lamp alarm Diagnostic Procedure 5 (Head lamp alarm check).
Refer to BL-242, " Diagnosis Procedure 5 " .
If the above systems are “OK”, replace BCM. Refer to BCS-18, " Removal
and Installation of BCM " .

BL-238< SERVICE INFORMATION >
VEHICLE SECURITY (T
HEFT WARNING) SYSTEM
*1 : Make sure the system is in the armed phase.
Diagnosis Procedure 1 INFOID:0000000004305126
1-1 DOOR SWITCH CHECK (HATCHBACK) 1.
CHECK DOOR SWITCHES INPUT SIGNAL
With CONSULT-III
Check door switches ("DOOR SW-DR", "DOOR SW-AS", "DOOR SW-RL", "DOOR SW-RR", "BACK DOOR
SW") in DATA MONITOR mode with CONSULT–III. Refer to BL-41, " 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, 43, 47, 48 and ground.
5
Vehicle security
system cannot be
canceled by ···· Door outside key (driver)
Diagnostic Procedure 3 (Door key cylinder switch check).
Refer to BL-242, " Diagnosis Procedure 3 " .
If the above systems are “OK”, check main power window and door lock/un-
lock switch. Refer to GW-19 .
Trunk key cylinder switch (se-
dan) Diagnostic Procedure 9 (Trunk key cylinder switch check) (Sedan)
Refer to BL-245, " Diagnosis Procedure 9 " .
Intelligent key Check Intelligent Key entry function. Refer to
BL-88, " System Description "
If the above systems are “OK”, replace BCM. Refer to
BCS-18, " Removal
and Installation of BCM " .
Keyfob (without Intelligent Key) Check remote keyless entry function. Refer to
BL-69, " Preliminary Check " .
If the above systems are “OK”, replace BCM. Refer to BCS-18, " Removal
and Installation of BCM " .
SYMPTOM PROCEDURE Diagnostic procedure DOOR SW-DR : ON
DOOR SW-AS : ON
DOOR SW-RL : ON
DOOR SW-RR : ON
BACK DOOR SW : ON
DOOR SW-DR : OFF
DOOR SW-AS : OFF
DOOR SW-RL : OFF
DOOR SW-RR : OFF
BACK DOOR SW : OFF Connector Item
Terminals
ConditionVoltage (V)
(Approx.)
( + ) ( – ) LIIA1041E

BL-244< SERVICE INFORMATION >
VEHICLE SECURITY (T
HEFT WARNING) SYSTEM
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.
Diagnosis Procedure 8 INFOID:0000000004305133
TRUNK LAMP SWITCH CHECK (SEDAN) 1.
CHECK TRUNK LAMP SWITCH AND TRUNK RELEASE SOLENOID INPUT SIGNAL
With CONSULT-III
Check (“TRNK OPN MNTR”) in “DATA MONITOR” mode with CONSULT-III.
Without CONSULT-III
1. Turn ignition switch OFF.
2. Check voltage between BCM harness connector M19 terminal 42 and ground.
OK or NG OK >> Trunk lamp switch and trunk release solenoid circuit is
OK.
NG >> GO TO 2 2.
CHECK TRUNK LAMP SWITCH A ND TRUNK RELEASE SOLENOID
1. Turn ignition switch OFF.
2. Disconnect trunk lamp switch and trunk release solenoid connector.
3. Check continuity between trunk lamp switch and trunk release solenoid terminals 1 and 3.
Component Terminals
Condition of
switch Continuity
Front door switch LH/RH 2 – Case ground Pushed No
Released Yes
Rear door switch LH/RH 1 – Case ground Pushed No
Released Yes LIIA0550E
Monitor item Trunk condition
TRNK OPN MNTR OPEN : ON
CLOSED : OFF Connector
Terminals
Trunk condition Voltage (V)
(Approx.)
(+) (-)
M19 42 Ground CLOSED Battery voltage
OPEN 0 WIIA1179E

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OK or NG OK >> GO TO 3
NG >> Replace trunk lamp switch and trunk release solenoid. OK >> GO TO 4
NG >> Repair or replace harness between BCM and trunk room lamp switch. OK >> Check connection of harness and connector.
NG >> Repair or replace trunk lamp switch and trunk release solenoid ground circuit.
Diagnosis Procedure 9 INFOID:0000000004305134
TRUNK KEY CYLINDER SWITCH CHECK (SEDAN) 41, " CONSULT-III Function (BCM) " .
Terminals Trunk condition Continuity
1 3 CLOSED No
OPEN Yes

OK >> Trunk key cylinder switch signal is OK.
NG >> GO TO 2 OK >> GO TO 3
NG >> Repair or replace harness. OK >> GO TO 4
NG >> Replace trunk key cylinder switch.

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2. Check continuity between BCM connector (A) M19 terminal 41
and trunk key cylinder switch connector (B) B142 terminal 1 and
body ground.
OK or NG OK >> Trunk key cylinder switch circuit is OK.
NG >> Repair or replace harness. Connector Terminal Connector Terminal Continuity
A: M19 41 B: B142 1 Yes
Ground No

BL-254< SERVICE INFORMATION >
NATS (NISSAN ANTI-THEFT SYSTEM)
30 1
VBack door/trunk out-
put Output —Back door open (switch
closed) 0V
Back door closed (switch
open) 5V
30 3
VBack door opener
switch Input —All doors locked (SW OFF) Battery voltage
All doors unlocked (SW ON) 0V
30 4
VTrunk lid opener
switch Input —All doors locked (SW OFF) Battery voltage
All doors unlocked (SW ON) 0V
32 LG Combination switch
output 5 Output ONLighting, turn, wiper OFF
Wiper dial position 4
33 Y Combination switch
output 4 Output ON
Lighting, turn, wiper OFF
Wiper dial position 4
34 V Combination switch
output 3 Output ONLighting, turn, wiper OFF
Wiper dial position 4
35 R Combination switch
output 2
Output ONLighting, turn, wiper OFF
Wiper dial position 4
36 P Combination switch
output 1
37 1
GKey switch and igni-
tion knob switch Input OFFIntelligent Key inserted Battery voltage
Intelligent Key removed 0V
37 2
GKey switch and key
lock solenoid Input OFFKey inserted Battery voltage
Key removed 0V
38 W Ignition switch (ON) Input ON — Battery voltage
39 L CAN-H — — — —
40 P CAN-L — — — —
41 6
WTrunk key cylinder
switch Input —ON (Full unlock position) 0V
OFF (Neutral position) 5V
42 6
Y Trunk lamp switch Input OFF ON (trunk open) 0V
OFF (trunk closed) Battery voltage
Terminal
Wire
color Signal name Signal
input/
output Measuring condition
Reference value or waveform
(Approx.)
Ignition
switch Operation or condition SKIA5291E
SKIA5292E
SKIA5291E
SKIA5292E