2009 NISSAN LATIO key fob

BL-228< SERVICE INFORMATION >
VEHICLE SECURITY (T
HEFT WARNING) SYSTEM
18 V Remote keyless entry
receiver (ground) Output OFF — 0V
19 BR Remote keyless entry
receiver (power sup-
ply) Output OFF Ignition switch OFF
20 G Remote keyless entry
receiver signal (signal) Input OFFStand-by (keyfob buttons re-
leased)
When remote keyless entry
receiver receives signal from
keyfob (keyfob buttons
pressed)
21 P NATS antenna amp. Input/
Output OFF
→
ON Ignition switch (OFF
→ ON) Just after turning ignition switch
ON: Pointer of tester should
move for approx. 1 second, then return to battery voltage.
23 R Security indicator
lamp Output OFFGoes OFF
→ illuminates (Ev-
ery 2.4 seconds) Battery voltage
→ 0V
25 LG NATS antenna amp. Input/
Output OFF
→
ON Ignition switch (OFF
→ ON) Just after turning ignition switch
ON: Pointer of tester should
move for approx. 1 second, then
return to battery voltage.
26 GR Thermo control amp. Input ON A/C switch ON
27 O Compressor ON sig-
nal Input ONA/C switch OFF 5V
A/C switch ON 0V
28 P Front blower monitor Input ON Front blower motor OFF Battery voltage
Front blower motor ON 0V
29 L Hazard switch Input OFF ON 0V
OFF 5V
Terminal
Wire
color Signal name Signal
input/
output Measuring condition
Reference value or waveform
(Approx.)
Ignition
switch Operation or condition LIIA1893E
LIIA1894E
LIIA1895E
ZJIA0719J

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

NATS (NISSAN ANTI-THEFT SYSTEM)
BL-253
< SERVICE INFORMATION >
C
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F
G H
J
K L
M A
B BL
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18 V
Remote keyless entry
receiver (ground) Output OFF — 0V
19 BR Remote keyless entry
receiver (power sup-
ply) Output OFF Ignition switch OFF
20 G Remote keyless entry
receiver signal (signal) Input OFFStand-by (keyfob buttons re-
leased)
When remote keyless entry
receiver receives signal from
keyfob (keyfob buttons
pressed)
21 P NATS antenna amp. Input/
Output OFF
→
ON Ignition switch (OFF
→ ON) Just after turning ignition switch
ON: Pointer of tester should
move for approx. 1 second, then return to battery voltage.
23 R Security indicator
lamp Output OFFGoes OFF
→ illuminates (Ev-
ery 2.4 seconds) Battery voltage
→ 0V
25 LG NATS antenna amp. Input/
Output OFF
→
ON Ignition switch (OFF
→ ON) Just after turning ignition switch
ON: Pointer of tester should
move for approx. 1 second, then
return to battery voltage.
26 GR Thermo control amp. Input ON A/C switch ON
27 O Compressor ON sig-
nal Input ONA/C switch OFF 5V
A/C switch ON 0V
28 P Front blower monitor Input ON Front blower motor OFF Battery voltage
Front blower motor ON 0V
29 L Hazard switch Input OFF ON 0V
OFF 5V
Terminal
Wire
color Signal name Signal
input/
output Measuring condition
Reference value or waveform
(Approx.)
Ignition
switch Operation or condition LIIA1893E
LIIA1894E
LIIA1895E
ZJIA0719J

LT
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INTERIOR ROOM LAMP
Component Parts and Har ness Connector Location INFOID:0000000004306628
System Description INFOID:0000000004306629
When room lamp switch is in DOOR position, room la mp ON/OFF is controlled by timer according to signals
from switches including key switch, front door switch LH, unlock signal from keyfob, door lock and unlock
switch, key cylinder lock and unlock switch, ignition switch.
When room lamp turns ON, there is a gradual brightening over 1 second.
When room lamp turns OFF, there is a gradual dimming over 1 second.
Interior room lamp timer is controlled by BCM (body control module).
Interior room lamp timer control settings can be changed with CONSULT-III.
POWER SUPPLY AND GROUND Power is supplied at all times (without Intelligent Key system)
• through 10A fuse [No. 14, located in fuse block (J/B)]
• to key switch and key lock solenoid terminal 2,
• through 10A fuse [No. 8, located in fuse block (J/B)]
• to BCM terminal 57,
• through 40A fusible link (letter g , located in fuse and fusible link box)
• to BCM terminal 70.
Power is supplied at all times (with Intelligent Key system) 1. BCM M18, M19 and M20 (view with
glove box removed) 2. Key switch and key lock solenoid
(without Intelligent Key) M27 3. Key switch and ignition knob switch
(with Intelligent Key) M73
4. Front door switch LH B8 and RH B108 5. Rear door switch LH B6 and RH
B116 6. Front door key cylinder switch LH
D14
7. Back door lock assembly D405 (hatchback) 8. Trunk lamp switch and trunk release
solenoid B127 (sedan)

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• to map lamp terminal 1
Power is supplied
• through BCM terminal 56
• to map lamp terminal 4.
When interior room lamp switch is ON, ground is supplied
• to interior room lamp terminal 1
• through map lamp (with map lamp) terminal 7
• through map lamp (with map lamp) terminal 1
• through grounds M57 and M61.
Power is supplied
• through BCM terminal 56
• through map lamp (with map lamp) terminal 4
• through map lamp (with map lamp) terminal 6
• to room lamp terminal 3.
INTERIOR ROOM LAMP TIMER OPERATION
Without Intelligent Key System When room lamp switch is in DOOR position, and w hen all conditions below are met, BCM performs timer
control (maximum 30 seconds) for room lamp ON/OFF.
In addition, when the interior room lamp turns ON or OFF there is gradual brightening or dimming over 1 sec-
ond.
Power is supplied
• through 10A fuse [No. 14, located in fuse block (J/B)]
• to key switch and key lock solenoid terminal 2.
When the key is removed from ignition key cylinder (key switch OFF), power will not be supplied to BCM termi-
nal 37.
When front door key cylinder switch LH is unlocked, ground is supplied
• to BCM terminal 7
• through front door key cylinder switch LH terminal 3
• through front door key cylinder switch LH terminal 2
• through grounds M57 and M61.
At the time that front door LH is opened, BCM detects that front door LH is unlocked. It determines that interior
room lamp timer operation condition is met, and turns the room lamp ON for 30 seconds.
When key is in ignition key cylinder (key switch ON),
Power is supplied
• through key switch and key lock solenoid terminal 1
• to BCM terminal 37.
When key is removed from key switch and key lock soleno id (key switch OFF), the power supply to BCM ter-
minal 37 is terminated. BCM detects that key has been re moved, determines that interior room lamp timer
conditions are met, and turns the room lamp ON for 30 seconds.
When front door LH opens → closes, and the key is not inserted in the key switch and key lock solenoid (key
switch OFF), voltage at BCM terminal 47 changes between 0V (door open) → 12V (door closed). The BCM
determines that conditions for room lamp operation are met and turns the room lamp ON for 30 seconds.
Interior room lamp timer control is canceled under the following conditions:
• Front door LH is locked (locked by front door key cylinder switch LH, keyfob or door lock/unlock switch).
• Front door LH is opened (front door switch LH).
• Ignition switch ON.
With Intelligent Key System When the room lamp switch is in DOOR position, and when all conditions below are met, BCM performs timer
control (maximum 30 second) for room lamp ON/OFF.
In addition, when interior room lamp turns ON or OFF there is gradual brightening or dimming over 1 second.
Power is supplied
• through 10A fuse (No. 31, located in fuse and fusible link box)
• to key switch and ignition knob switch terminals 2 and 4.
When key is removed from ignition key cylinder (key switch OFF), power will not be supplied to BCM terminal
37.
When the ignition knob switch is released, power wil l not be supplied to Intelligent Key unit terminal 27.
When front door key cylinder switch LH is unlocked, ground is supplied
• to BCM terminal 7
• through front door key cylinder switch LH terminal 3

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24 Y Cooling fan relay-3 Output —
Conditions correct for cooling
fan high operation Battery voltage
Conditions not correct for
cooling fan high operation 0V
26 O Tail lamp relay (park-
ing lamps) Output — Lighting switch in 2nd position Battery voltage
27 BR Tail lamp relay (park-
ing lamps) Output — Lighting switch in 2nd position Battery voltage
28 GR Tail lamp relay (park-
ing lamps) Output — Lighting switch in 2nd position Battery voltage
29 P Tail lamp relay (park-
ing lamps) Output — Lighting switch in 2nd position Battery voltage
30
(A/T
only) R Fuse 54 Output — Ignition switch ON or START Battery voltage
Ignition switch OFF or ACC 0V
31 O Fuse 55 Output — Ignition switch ON or START Battery voltage
Ignition switch OFF or ACC 0V
32 L Wiper high speed sig-
nal OutputON or
START Wiper switch OFF, LO, INT 0V
HI Battery voltage
33 Y Wiper low speed sig-
nal OutputON or
START Wiper switch OFF 0V
LO or INT Battery voltage
35 BR Starter relay (inhibit
switch) InputON or
START Selector lever in "P" or "N"
(CVT or A/T) or clutch pedal
depressed (M/T) Battery voltage
Selector lever any other posi-
tion (CVT or A/T) or clutch
pedal released (M/T) 0V
36 BR Fuel pump relay Output — Ignition switch ON or START Battery voltage
Ignition switch OFF or ACC 0V
37 G Oil pressure switch Input ON or
START Engine running and oil pres-
sure within specification Battery voltage
Engine not running or oil pres-
sure below specification 0V
38 R Wiper auto stop signal Input ON or
START Wipers not in park position Battery voltage
Wipers in park position 0V
39 B Ground Input — — 0V
40 P CAN-L — ON — —
41 L CAN-H — ON — —
45 R Horn relay control Input — Horn switch PUSHED, alarm
switch activated or door lock/
unlock is confirmed when op-
erating lock system via the
keyfob 0V
Horn switch released, alarm
not active, keyfob not active Battery voltage
46 Y Throttle control motor
relay control Input —Ignition switch ON or START 0V
Ignition switch OFF or ACC Battery voltage
47 GR Fuel pump relay con-
trol Input —Ignition switch ON or START 0V
Ignition switch OFF or ACC Battery voltage
Terminal
Wire
color Signal name Signal
input/
output Measuring condition
Reference value
(Approx.)
Ignition
switch Operation or condition