2010 NISSAN LATIO trunk

INTELLIGENT KEY SYSTEMBL-91
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System Diagram
Door Lock/Unlock Function
• When door lock/unlock button of the Intelligent Key is pr
essed, lock signal or unlock signal is sent from Intel-
ligent Key to Intelligent Key unit.
• Intelligent Key unit sends the door lock/unlock request signal to BCM via CAN communication line.
• Intelligent Key unit sends the door lock/unlock signal and sounds Intelligent Key warning buzzer(s) (lock: 2 times, unlock: 1 time) at the same time.
• When BCM receives the door lock/unlock signal, it oper ates door lock actuator and flashes the hazard warn-
ing lamp (lock: 2 times, unlock: 1 time) at the same time as reminder.
Operation Condition
Hazard and Buzzer Reminder
When all doors are locked or unlocked by Intelligent Ke y button, Intelligent Key unit sends hazard request sig-
nal to BCM via CAN communication line.
BCM flashes hazard warning lamps as a reminder and Intelligent Key unit sounds Intelligent Key warning
buzzer as a reminder.
Operating function of hazard and buzzer reminder
Auto Door Lock Function
When all doors are locked, ignition knob switch is OFF (when ignition switch is not pressed) and key switch is
OFF (when mechanical key is out of ignition key cyli nder), doors are unlocked with Intelligent Key button.
When Intelligent Key unit does not receive the following signals within 1 minute, all doors are locked.
• Door switch is ON (door is opened)
• Trunk lamp switch (sedan) is ON (trunk is opened)
• Door is locked
• Ignition knob switch is ON (ignition switch is pressed)
• Key switch is ON (mechanical key is inserted in ignition switch)
Auto door lock mode can be changed by “AUTO RELOCK TIMER” mode in “WORK SUPPORT”. Refer to BL-
117, "CONSULT-III Application Item".
Panic Alarm Function
When ignition knob switch is OFF (ignition switch is not pressed), or key switch is OFF (mechanical key is not
inserted in key cylinder), pressing and holding the panic alarm button on Intelligent Key will send a panic alarm
signal to Intelligent Key unit.
Intelligent Key unit sends alarm request signal to BCM via CAN communication line.
BCM sends headlamp request signal and horn signal to IPDM E/R. Then, IPDM E/R turns on and off head-
lamp and horn intermittently.
LIIA2927E
Remote controller operation Operation condition Operation
Lock All doors are closed All doors lock
Intelligent Key button operation Hazard warning lamp flash Intelligent Key warning buzzer(s) Horn
Lock Twice —Once
Unlock Once ——
Revision: January 20102010 Versa

INTELLIGENT KEY SYSTEMBL-93
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Even if Intelligent Key battery runs down, Intelligent key unit can start engine with mechanical key built Intelli-
gent Key. For details, refer toBL-248
.
All of the originally supplied Intelligent Key IDs (exc ept for key) have been registered in Intelligent Key system.
If requested by the vehicle owner, a maximum of four Intelligent Key IDs can be registered into the Intelligent
Key system components.
List of Operation Related Parts
Parts marked with × are the parts related to operation.
WARNING CHIME/BUZZER/LAMPS FUNCTION
Operation Description
The following warning chime (combination meter), Intelligent Key warning buzzer (front door LH), Intelligent
Key warning buzzer (trunk)
*, warning lamps "KEY" and “P-SHIFT” (with CVT or A/T) or "LOCK" (with M/T) are
given to the user as warning informati on while using the intelligent key system.
• Ignition switch warning chime
• Ignition key warning chime
• OFF position warning chime
• Take away warning chime
• Door lock operation warning chime
• Intelligent key low battery warning
• P position warning (with CVT or A/T)
• LOCK position warning (with M/T) NOTE:
For key-in-ignition warning chime related concerns only, refer to DI-43
.
* :
Sedan
Operation Condition
Engine start functions
Intelligent Key
Key switch
Ignition knob switch
Inside key antenna
Intelligent Key unit
CAN communication system
BCM
Combination meter
IPDM E/R
NATS antenna amp.
Steering lock solenoid
Engine start function by the Intelligent Key ××××××××× ×
Engine start function by the mechanical key ×××× ×××
Operation ConditionWarning chime/buzzer Warning lamp
Chime
(combina-
tion meter) Buzzer(s) KEY
LOCK
(M/T) P-SHIFT
(CVT or A/T)
Ignition switch warning chime • Mechanical key is out of ignition switch
(Key switch is OFF)
• Ignition switch is in the ACC, OFF or LOCK position.
[ignition switch is pressed
(ignition knob switch is ON).]
• Driver door is open. activate — — — —
Ignition key warning chime
(When mechanical key is used) • Mechanical key is inserted in ignition
switch (key switch is ON).
• Ignition switch is in the ACC, OFF or
LOCK position.
• Driver door is open. activate — — — —
P position warning (CVT or A/T) When selector lever is in other than P po-
sition, ignition switch is turned from ON to
OFF. activate — — — Flash
Revision: January 20102010 Versa

INTELLIGENT KEY SYSTEMBL-109
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17 W Rear bumper antenna
(+) signal
LOCK Press back door request switch.
18 B Rear bumper antenna
(-) signal
19 V Front outside antenna
LH (+) signal
LOCK Press door request switch LH.
20 P Front outside antenna
LH (-) signal
22
*2B/R Key interlock solenoid — With Intelligent Key present or mechanical
key in ignition cylinder, press "PUSH" but-
ton on ignition cylinder.
Battery voltage
Other than above 0
23 LG Back door open output — Back door open (switch closed)
0
Back door closed (switch open) 5
24 V Back door opener
switch —Press and hold back door switch.
0
Other than above 5
25 L Front door request
switch RH —Press front door request switch RH.
0
Other than above 5
26 SB Stop lamp switch —Depress brake pedal
Battery voltage
Other than above 0
27 W Ignition knob switch — Press ignition switch.
Battery voltage
Release ignition switch. 0
28 Y Unlock sensor
(driver side) —Door (driver si
de) is locked. 5
Door (driver side ) is unlocked. 0
29 V Back door request
switch (hatchback)
—Press back door request switch.
0
Other than above 5
Trunk opener request
switch (sedan) —Press trunk opener request switch.
0
Other than above 5
31 BR Steering lock solenoid
ground
——
0
32 GR Steering lock solenoid
communication signal LOCKWhen Intelligent Key is inside vehicle,
press ignition knob switch.
Other than above
5
Terminal
Wire
Color Item Condition
Voltage (V)Approx.
Ignition
Switch
Position Operation or Conditions
SIIA1910J
SIIA1910J
SIIA1911J
Revision: January 20102010 Versa

INTELLIGENT KEY SYSTEMBL-113
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301LG Back door/trunk out-
put Output —Back door open (switch
closed)
0V
Back door closed (switch
open) 5V
30
3LG Back door opener
switch
Input —All doors locked (SW OFF)
Battery voltage
All doors unlocked (SW ON) 0V
30
4V Trunk 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
1G Key switch and igni-
tion knob switch Input OFFIntelligent Key inserted
Battery voltage
Intelligent Key removed 0V
37
2G Key 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
6W Trunk key cylinder
switch
Input —ON (Full unlock position)
0V
OFF (Neutral position) 5V
42
6Y Trunk lamp switch Input OFF ON (trunk open)
0V
OFF (trunk closed) Battery voltage
Te r m i n a l
Wire
color Signal name Signal
input/
output Measuring condition
Reference value or waveform
(Approx.)
Ignition
switch Operation or condition
SKIA5291E
SKIA5292E
SKIA5291E
SKIA5292E
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BL-114
< SERVICE INFORMATION >
INTELLIGENT KEY SYSTEM
435R Back door switch Input OFFON (open) 0V
OFF (closed)
Battery voltage
44
5LG Rear wiper auto stop Input ON Rear wiper operating 0
Rear wiper stopped
Battery
45
7GR Lock switch Input OFFON (lock)
0V
OFF Battery voltage
46
7L Unlock switch Input OFFON (unlock)
0V
OFF Battery voltage
47 BR Front door switch LH Input OFF ON (open)
0V
OFF (closed) Battery voltage
48 O Rear door switch LH Input OFF ON (open)
0V
OFF (closed) Battery voltage
49 P Luggage room lamp Output OFF Any door open (ON)
0V
All doors closed (OFF) Battery voltage
50 SB A/C indicator Output ONA/C OFF
0
A/C ON Battery voltage
53
5R Back door lock assem-
bly (actuator)
Output OFF Back door (open)
Battery voltage
53
6R Trunk lamp switch and
trunk release solenoid Output OFF Trunk lid (open)
Battery voltage
55
5V Rear wiper motor out-
put
Output ONOFF
0
ON Battery voltage
56 R Battery saver output Output OFF
30 minutes after ignition
switch is turned OFF 0V
ON — Battery voltage
57 LG Battery power supply Input OFF —Battery voltage
59
7G Front door lock actua-
tor LH (unlock) Output OFFOFF (neutral)
0V
ON (unlock) Battery voltage
60 V Turn signal (left) Output ON Turn left ON
61 W Turn signal (right) Output ON Turn right ON
63 BR Interior room lamp Output OFF Any door
switchON (open)
0V
OFF (closed) Battery voltage
Te r m i n a l
Wire
color Signal name Signal
input/
output Measuring condition
Reference value or waveform
(Approx.)
Ignition
switch Operation or condition
SKIA3009J
SKIA3009J
Revision: January 20102010 Versa

BL-122
< SERVICE INFORMATION >
INTELLIGENT KEY SYSTEM
• If the following “symptoms” are detected, check systems shown in the “Diagnosis/procedure” column in this
order.
Conditions of Vehicle (Operating Conditions)
• “LOCK/UNLOCK BY I-KEY” is ON when setting on CONSULT-III.
• Mechanical key is out of ignition switch.
• Ignition switch is not depressed.
• All doors are closed.
• Intelligent Key is registered.
REMOTE KEYLESS ENTRY FUNCTION MALFUNCTION
NOTE:
• Before performing the diagnosis in the following table, check “Trouble Diagnosis Procedure”. Refer to BL-
115, "Trouble Diagnosis Procedure".
• Make sure that vehicle is under the condition shown in “Conditions of vehicle” before starting diagnosis, and
check each symptom.
• If the following “symptoms” are detected, check syst ems shown in the “Diagnosis/service procedure” column
in this order.
Conditions of Vehicle (Operating Conditions)
• Ignition switch is not depressed.
• All doors are closed.
Symptom Diagnosis/service procedureReference page
Door lock/unlock does not operate by all request
switches. 1. Check door switch (hatchback).
BL-131
2. Check door switch (sedan).BL-133
3. Check key switch.BL-127
4. Check ignition knob switch.BL-129
5. Replace Intelligent Key unit.BL-158
Door lock/unlock does not operate by request
switch (driver side).1. Check door request switch (driver side).
BL-1352. Check outside key antenna (driver side).BL-143
3. Replace Intelligent Key unit.BL-158
Door lock/unlock does not operate by request
switch (passenger side).1. Check door request switch (passenger side).
BL-1352. Check outside key antenna (passenger side).BL-143
3. Replace Intelligent Key unit.BL-158
Door lock/unlock does not operate by back door
request switch (hatchback).1. Check back door request switch.
BL-1372. Check outside key antenna (rear bumper).BL-144
3. Replace Intelligent Key unit.BL-158
Door lock/unlock does not operate by trunk
opener request switch (sedan).1. Check trunk opener request switch.
BL-1382. Check outside key antenna (rear bumper).BL-144
3. Replace Intelligent Key unit.BL-158
Auto lock function does not operate.1. Check “AUTO RELOCK TI
MER” setting in “WORK
SUPPORT”. BL-117
2. Replace Intelligent Key unit.
BL-158
Key reminder function does not operate.1. Check door switch (hatchback).
BL-131
2. Check door switch (sedan).BL-133
3. Check inside key antenna.BL-146
4. Check unlock sensor.BL-140
5. Check Intelligent Key battery.BL-158
6. Replace Intelligent Key unit.BL-158
Revision: January 20102010 Versa

INTELLIGENT KEY SYSTEMBL-125
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WARNING LAMP FUNCTION MALFUNCTION
NOTE:
• Before performing the diagnosis in the following table, check “Trouble Diagnosis Procedure”. Refer to BL-
115, "Trouble Diagnosis Procedure".
• If the following “symptoms” are detected, check syst ems shown in the “Diagnosis/service procedure” column
in this order.
Take away warning
chime/buzzer (door
open to close) does
not operate. Both Intelligent Key
warning chime and
buzzer do not oper-
ate.1. Check door switch (hatchback).
BL-131
2. Check door switch (sedan).BL-133
3. Check inside key antenna.BL-146
4. Check key switch.BL-127
5. Check Intelligent Key warning chime.BL-142
6. Check Intelligent Key warning buzzer(s). BL-142
7. Replace Intelligent Key unit. BL-158
Intelligent Key warn-
ing buzzer does not
operate.Check Intelligent Key warning buzzer(s).
BL-142
Take away warning chime (through window)
does not operate.1.
Check “TAKE OUT FROM WINDOW WARN” setting in
“WORK SUPPORT”. BL-117
2. Check inside key antenna.
BL-146
3. Check key switch.BL-127
4. Check Intelligent Key battery.BL-158
5. Check Intelligent Key warning chime.BL-156
6. Replace Intelligent Key unit.BL-158
Door lock operation warning buzzer does not
operate.1. Check door switch (hatchback).
BL-131
2. Check door switch (sedan).BL-133
3. Check ignition knob switch.BL-129
4. Check door request switch.BL-135
5. Check back door request switch (hatchback).BL-137
6. Check trunk opener request switch (sedan).BL-138
7. Check outside key antenna (driver side and passenger side).BL-143
8. Check outside key antenna (rear bumper).BL-144
9. Check inside key antenna.BL-146
10. Check Intelligent Key warning buzzer(s). BL-142
11. Replace Intelligent Key unit.BL-158
One warning buzzer does not operate (se-
dan).Check Intelligent Key warning buzzer(s).
BL-142
SymptomDiagnosis/service procedureReference page
SymptomDiagnosis/service procedureReference page
When Intelligent Key low battery warning operate, “KEY”
warning lamp (green) does not illuminate. 1.
Check “LOW BAT OF KEY FOB WARN” setting
in “WORK SUPPORT”.
BL-117
2. Check Intelligent Key battery.
BL-158
3. Check KEY warning lamp (green).BL-155
4. Replace Intelligent Key unit.BL-158
P position warning lamp does not illuminate properly.
(With CVT or A/T)1.
Check CVT or A/T shift selector (park position
switch). BL-153
2. Check “P-SHIFT” warning lamp (red).
BL-154
3. Replace Intelligent Key unit.BL-158
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BL-138
< SERVICE INFORMATION >
INTELLIGENT KEY SYSTEM
OK or NG
OK >> GO TO 4
NG >> Replace back door request switch.
4.CHECK BACK DOOR REQUEST SWITCH GROUND CIRCUIT
Check continuity between back door request switch connector D406 terminal 2 and ground.
OK or NG
OK >> GO TO 5
NG >> Repair or replace back door request switch ground cir- cuit.
5.CHECK INTELLIGENT KEY UNIT OUTPUT SIGNAL
1. Connect Intelligent Key unit connector.
2. Check voltage between Intelligent Key unit connector M52 terminal 29 and ground.
OK or NG
OK >> Check the condition of harness and connector.
NG >> Replace Intelligent Key unit. Refer to BL-158, "
Removal
and Installation of Intelligent Key Unit".
Trunk Opener Request Switch Check (Sedan)INFOID:0000000005396621
1.CHECK TRUNK OPENER REQUEST SWITCH
With CONSULT-III
Check trunk opener request switch (“BD/TR REQ SW”) in “DATA MONITOR” mode.
Without CONSULT-III
1. Turn ignition switch OFF.
2. Check voltage between Intelligent Key unit connector and ground.
Te r m i n a l Back door request
switch condition Continuity
Back door request switch
12 Pressed Yes
Released No
PIIB6336E
Back door request switch connector Te r m i n a l
GroundContinuity
D406 2 Yes
PIIB6337E
Te r m i n a l s
Voltage (V)(Approx.)
(+)
(–)
Intelligent Key unit
connector Te r m i n a l
M52 29Ground 5
PIIB6617E
Monitor item Condition
BD/TR REQ SW Trunk opener request switch is pressed: ON
Trunk opener request switch is released: OFF
Revision: January 20102010 Versa