2008 NISSAN LATIO keyless

BCS-6
< SERVICE INFORMATION >
BCM (BODY CONTROL MODULE)
• When CAN communication operation is detected, it switches to CAN communication status.
• When a state of the following switches changes, it switches to CAN communication state:
- Ignition switch
- Key switch (without Intelligent Key)
- Key switch and ignition knob switch (with Intelligent Key)
- Hazard switch
- Door lock/unlock switch
- Front door switch (LH, RH)
- Rear door switch (LH, RH)
- Back door lock assembly (Hatchback)
- Trunk key cylinder switch (Sedan)
- Trunk lamp switch and trunk release solenoid (Sedan)
- Combination switch (passing, lighting switch 1st position, front fog lamp)
- Keyfob (lock/unlock signal)
- Front door key cylinder switch LH
• When control performed only by BCM is required by switch, it shifts to CAN communication inactive
mode.
• Status of combination switch reading function is changed.
SYSTEMS CONTROLLED BY BCM DIRECTLY
• Power door lock system. Refer to BL-22 .
• Remote keyless entry system. Refer to BL-51
.
• Power window system. Refer to GW-18
. NOTE
• Sunroof system. Refer to RF-10. NOTE
• Room lamp timer. Refer to LT- 8 9 .
• Rear wiper and washer system. Refer to WW-24
.
NOTE:
Power supply only. No system control.
SYSTEMS CONTROLLED BY BCM AND IPDM E/R
• Panic system. Refer to BL-51 .
• Vehicle security (theft warning) system. Refer to BL-187
.
• NVIS(NATS) system. Refer to BL-210
.
• Headlamp, tail lamp and battery saver control systems. Refer to LT- 7 2
, LT- 4 or LT- 2 5 .
• Front fog lamp. Refer to LT- 3 9
.
• Front wiper and washer system. Refer to WW-3
.
• Rear window defogger system. Refer to GW-49
.
SYSTEMS CONTROLLED BY BCM AND COMBINATION METER
• Warning chime. Refer to DI-41 .
• Turn signal and hazard warning lamps. Refer to LT- 4 8
.
SYSTEMS CONTROLLED BY BCM AND INTELLIGENT KEY UNIT
• Intelligent Key system. Refer to BL-74 .
MAJOR COMPONENTS AND CONTROL SYSTEM
System Input Output
Remote keyless entry systemRemote keyless entry receiver
(keyfob)• All door locking actuators
• Turn signal lamp (LH, RH)
• Combination meter (turn signal lamp)
Intelligent Key system Intelligent Key unit• All door locking actuators
• Turn signal lamp (LH, RH)
• Combination meter (turn signal lamp)
Power door lock systemFront power door lock/unlock
switch (LH, RH)All door locking actuators
Power supply (IGN/RAP) to power
windowIgnition retained power supply Power supply to power window and sunroof system
Power supply (BAT) to power window Battery power supply Power supply to power window and sunroof system

BCM (BODY CONTROL MODULE)
BCS-7
< SERVICE INFORMATION >
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CAN Communication System DescriptionINFOID:0000000001704585
Refer to LAN-6, "System Description".
Panic alarm• Key switch
•KeyfobIPDM E/R
Vehicle security system• All door switches
•Keyfob
• Door lock/unlock switch
• Trunk key cylinder switch (Se-
dan)
• Front door key cylinder switch
LH• IPDM/ER
• Security indicator lamp
Battery saver control• Ignition switch
• Combination switchIPDM E/R
Headlamp Combination switch IPDM E/R
Tail lamp Combination switch IPDM E/R
Front fog lamp Combination switch IPDM E/R
Turn signal lamp Combination switch• Turn signal lamp
• Combination meter
Hazard lamp Hazard switch• Turn signal lamp
• Combination meter
Room lamp timer• Key switch
•Keyfob
• Main power window and door
lock/unlock switch
• Front door switch LH
• All door switchInterior room lamp
Back door switch signal (Hatchback) Back door lock assembly Luggage room lamp
Back door lock signal (Hatchback) Back door lock assembly Back door opener
Trunk lamp switch signalTrunk lamp switch and trunk re-
lease solenoidLuggage room lamp
Trunk lid opener signalTrunk lamp switch and trunk re-
lease solenoidTrunk lid opener
Key warning chime• Key switch
• Front door switch LHCombination meter (warning buzzer)
Light warning chime• Combination switch
• Key switch
• Front door switch LHCombination meter (warning buzzer)
Seat belt warning chime• Seat belt buckle switch LH
• Ignition switchCombination meter (warning buzzer)
Front wiper and washer system• Combination switch
• Ignition switchIPDM E/R
Rear window defogger Rear window defogger switch IPDM E/R
Rear wiper and washer system• Combination switch
• Ignition switchRear wiper motor
A/C switch signal Front air control ECM
Blower fan switch signal Front air control ECM
A/C indicator signal Front air control A/C indicator
Low tire pressure warning system Remote keyless entry receiver Combination meterSystem Input Output

BCS-12
< SERVICE INFORMATION >
BCM (BODY CONTROL MODULE)
18 VRemote keyless entry
receiver (ground)Output OFF — 0V
19 BRRemote keyless entry
receiver (power sup-
ply)Output OFF Ignition switch OFF
20 GRemote 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/
OutputOFF →
ONIgnition switch (OFF → ON)Just after turning ignition switch
ON: Pointer of tester should
move for approx. 1 second, then
return to battery voltage.
23 RSecurity indicator
lampOutput OFFGoes OFF → illuminates (Ev-
ery 2.4 seconds)Battery voltage → 0V
25 LG NATS antenna amp.Input/
OutputOFF →
ONIgnition 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 OCompressor ON sig-
nalInput ONA/C switch OFF 5V
A/C switch ON 0V
28 P Front blower monitor Input ONFront blower motor OFF Battery voltage
Front blower motor ON 0V
29 L Hazard switch Input OFFON 0V
OFF 5V Te r m i n a lWire
colorSignal nameSignal
input/
outputMeasuring condition
Reference value or waveform
(Approx.) Ignition
switchOperation or condition
LIIA1893E
LIIA1894E
LIIA1895E
ZJIA0719J

BCS-16
< SERVICE INFORMATION >
BCM (BODY CONTROL MODULE)
OK >> GO TO 3.
NG >> Repair or replace the harness.
3.CHECK GROUND CIRCUIT
Check continuity between BCM connector M20 terminal 67 and
ground.
OK or NG
OK >> Power supply and ground circuit is OK.
NG >> Repair or replace harness.
CONSULT-III Function (BCM)INFOID:0000000001704590
CONSULT-III can display each diagnostic item using the diagnostic test modes shown following.
ITEMS OF EACH PART
NOTE:
CONSULT-III will only display systems the vehicle possesses.67 - Ground : Continuity should exist.
LIIA0915E
BCM diagnostic
test itemDiagnostic mode Content
Inspection by partWORK SUPPORTSupports inspections and adjustments. Commands are transmitted to the BCM for
setting the status suitable for required operation, input/output signals are received
from the BCM and received data is displayed.
DATA MONITOR Displays BCM input/output data in real time.
ACTIVE TEST Operation of electrical loads can be checked by sending drive signal to them.
SELF-DIAG RESULTS Displays BCM self-diagnosis results.
CAN DIAG SUPPORT
MNTRThe results 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.
System and itemCONSULT-III dis-
playDiagnostic test mode (Inspection by part)
WORK
SUPPORTSELF−
DIAG RE-
SULTSCAN DIAG
SUPPORT
MNTRDATA
MONITORECU
PA R T
NUMBERAC-
TIVE
TESTCON-
FIGU-
RATION
BCM BCM×× × × ×
Power door lock sys-
temDOOR LOCK×××
Rear defoggerREAR DEFOG-
GER××
Warning chime BUZZER××
Room lamp timer INT LAMP×××
Remote keyless entry
systemMULTI REMOTE
ENT×××
Headlamp HEAD LAMP×××
Wiper WIPER×××
Turn signal lamp
Hazard lampFLASHER××

BCS-18
< SERVICE INFORMATION >
BCM (BODY CONTROL MODULE)
• WRITE CONFIGURATION-Manual selection is the function to select and write vehicle configuration on BCM
manually.
• WRITE CONFIGURATION-Config file is the function to write vehicle configuration with the data extracted
from current BCM.
• For READ CONFIGURATION and WRITE CONFIGURATION-Config file, refer to CONSULT-III Operation
Manual.
• For WRITE CONFIGURATION-Manual selection using the following flow chart, identify the correct model
and configuration list. Confirm and/or change setting value for each item according to the configuration list.
Depending on CONSULT-III software version being used, some or all of the write configuration items shown
in the following configuration lists may be displayed. If an item does not appear on the CONSULT-III WRITE
CONFIGURATION-Manual selection screen(s), then it is an auto setting item and it cannot be manually set
or changed.
NOTE:
Confirm vehicle model on IDENTIFICATION PLATE. Refer to GI-43, "
Model Variation".
CAUTION:
• When replacing BCM, you must perform WRITE CONFIGURATION with CONSULT-III.
• Complete the procedure of WRITE CONFIGURATION in order.
• If you set incorrect WRITE CONFIGURATION, incidents will occur.
• Configuration is different for each vehicle model. Confirm configuration of each vehicle model.
Removal and Installation of BCMINFOID:0000000001704593
REMOVAL
1. Remove the glove box. Refer to IP-11, "Removal and Installation".
2. Remove the BCM screws, disconnect the connectors and
remove the BCM (1).
INSTALLATION
Installation is in the reverse order of removal.
NOTE:
• When replacing BCM, it must be configured. Refer to BCS-17, "
Configuration".
• When replacing BCM, perform initialization of NATS system and registration of all NATS ignition key IDs.
Refer to BL-210
.
• When replacing BCM, if new BCM does not come with keyfobs attached, all existing keyfobs must be re-reg-
istered.
ITEM SET VAL
KEYLESS ENTRY WITH ⇔ WITHOUT
I-KEY WITH ⇔ WITHOUT
DTRL WITH ⇔ WITHOUT
THEFT ALARM WITH ⇔ WITHOUT
WKIA5672E

BL-1
BODY
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SECTION BL
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CONTENTS
BODY, LOCK & SECURITY SYSTEM
SERVICE INFORMATION ............................4
PRECAUTIONS ...................................................4
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ...................................................................
4
Precaution Necessary for Steering Wheel Rota-
tion After Battery Disconnect .....................................
4
Precaution for Procedure without Cowl Top Cover ......5
Precaution for Work ..................................................5
PREPARATION ...................................................6
Special Service Tool .................................................6
Commercial Service Tool ..........................................6
SQUEAK AND RATTLE TROUBLE DIAG-
NOSES ................................................................
7
Work Flow .................................................................7
Generic Squeak and Rattle Troubleshooting ............9
Diagnostic Worksheet .............................................11
HOOD .................................................................13
Fitting Adjustment ...................................................13
Removal and Installation .........................................14
Removal and Installation of Hood Lock Control ......15
Hood Lock Control Inspection .................................17
RADIATOR CORE SUPPORT ...........................19
Removal and Installation .........................................19
FRONT FENDER ................................................21
Removal and Installation .........................................21
POWER DOOR LOCK SYSTEM ........................22
Component Parts and Harness Connector Loca-
tion ..........................................................................
22
System Description .................................................22
CAN Communication System Description ...............24
Schematic ...............................................................25
Wiring Diagram - D/LOCK - .....................................26
Schematic ...............................................................30
Wiring Diagram - D/LOCK - .....................................31
Terminal and Reference Value for BCM ..................35
Work Flow ................................................................35
CONSULT-III Function (BCM) .................................36
Trouble Diagnosis Symptom Chart ..........................37
BCM Power Supply and Ground Circuit ..................37
Door Switch Check (Hatchback) ..............................37
Door Switch Check (Sedan) ....................................40
Key Switch (Insert) Check .......................................41
Door Lock and Unlock Switch Check ......................42
Front Door Lock Assembly LH (Actuator) Check .....45
Door Lock Actuator Check (Front RH and Rear
LH/RH) .....................................................................
46
Front Door Key Cylinder Switch LH Check ..............47
Passenger Select Unlock Relay Circuit Inspection
(With Intelligent Key) ...............................................
48
REMOTE KEYLESS ENTRY SYSTEM .............51
Component Parts and Harness Connector Loca-
tion ...........................................................................
51
System Description ..................................................51
CAN Communication System Description ...............53
Schematic ................................................................54
Wiring Diagram - KEYLES - ....................................55
Terminal and Reference Value for BCM ..................57
How to Perform Trouble Diagnosis ..........................57
Preliminary Check ...................................................58
CONSULT-III Function (BCM) .................................58
Work Flow ................................................................59
Trouble Diagnosis Symptom Chart ..........................60
Keyfob Battery and Function Check ........................61
ACC Switch Check ..................................................62
Door Switch Check (Hatchback) ..............................62
Door Switch Check (Sedan) ....................................65
Key Switch (Insert) Check .......................................66
Hazard Function Check ...........................................67
Horn Function Check ...............................................67
Interior Lamp and Ignition Keyhole Illumination
Function Check ........................................................
68
Remote Keyless Entry Receiver Check ...................68
Keyfob Function (Lock) Check ................................71
Keyfob Function (Unlock) Check .............................71

BL-2
ID Code Entry Procedure .......................................71
Keyfob Battery Replacement ..................................73
Removal and Installation of Remote Keyless Entry
Receiver .................................................................
73
INTELLIGENT KEY SYSTEM ............................74
Component Parts and Harness Connector Loca-
tion ..........................................................................
74
System Description .................................................76
CAN Communication System Description ..............83
Schematic ...............................................................84
Wiring Diagram - I/KEY - ........................................86
Intelligent Key Unit Harness Connector Terminal
Layout .....................................................................
96
Terminal and Reference Value for Intelligent Key
Unit .........................................................................
96
Steering Lock Solenoid Harness Connector Ter-
minal Layout ...........................................................
98
Terminal and Reference Value for Steering Lock
Solenoid ..................................................................
98
Terminal and Reference Value for BCM .................99
Trouble Diagnosis Procedure .................................99
CONSULT-III Functions (INTELLIGENT KEY) ......100
CONSULT-III Application Item ...............................101
Trouble Diagnosis Symptom Chart ........................103
CAN Communication System Inspection ...............109
Power Supply and Ground Circuit Inspection ........110
Key Switch (Intelligent Key Unit Input) Check .......110
Key Switch (BCM Input) Check .............................112
Ignition Knob Switch Check ...................................113
Door Switch Check (Hatchback) ............................114
Door Switch Check (Sedan) ..................................117
Door Request Switch Check ..................................118
Back Door Request Switch Check (Hatchback) ....120
Trunk Opener Request Switch Check (Sedan) .....122
Unlock Sensor Check ............................................124
Intelligent Key Warning Buzzer(s) Check ..............125
Outside Key Antenna (Driver Side and Passenger
Side) Check ...........................................................
126
Outside Key Antenna (Rear Bumper) Check .........128
Inside Key Antenna Check ....................................129
Steering Lock Solenoid Check ..............................131
Key Interlock Solenoid (With M/T) Check ..............133
Ignition Switch Position Check ..............................134
Stop Lamp Switch Check (With CVT) ....................134
Stop Lamp Switch Check (With M/T) .....................135
Check CVT Device (Park Position Switch) Check ..136
"P-SHIFT" Warning Lamp (With CVT) Check ........138
"LOCK" Warning Lamp (With M/T) Check .............138
"KEY" Warning Lamp (RED) Check ......................139
"KEY" Warning Lamp (GREEN) Check .................139
Check Warning Chime in Combination Meter ........140
Hazard Function Check .........................................140
Horn Function Check .............................................140
Headlamp Function Check ....................................141
Intelligent Key Battery Replacement .....................142
Remote Keyless Entry Function ............................142
Removal and Installation of Intelligent Key Unit ....142
DOOR ...............................................................144
Fitting Adjustment .................................................144
Removal and Installation .......................................147
FRONT DOOR LOCK .......................................150
Component Parts Location ...................................150
Removal and Installation .......................................150
REAR DOOR LOCK .........................................153
Component Parts Location ...................................153
Removal and Installation .......................................153
BACK DOOR LOCK .........................................156
Component Parts and Harness Connector Loca-
tion ........................................................................
156
System Description ...............................................156
Wiring Diagram - B/DOOR - ..................................157
Terminal and Reference Value for BCM ...............158
Terminal and Reference Value for Intelligent Key
Unit ........................................................................
158
CONSULT-III Function (BCM) ..............................159
Work Flow .............................................................159
Trouble Diagnosis Chart by Symptom ..................159
BCM Power Supply and Ground Circuit ................160
Check Back Door Opener Switch Circuit (Without
Intelligent Key or Power Windows) .......................
160
Check Back Door Opener Switch Circuit (Without
Intelligent Key, with Power Windows) ...................
162
Check Back Door Opener Switch Circuit (With In-
telligent Key) .........................................................
165
Check Back Door Lock Assembly (Actuator) Cir-
cuit ........................................................................
166
Removal and Installation .......................................168
TRUNK LID .......................................................170
Fitting Adjustment .................................................170
Trunk Lid Assembly ..............................................170
Trunk Lid Lock ......................................................171
Trunk Lid Striker ....................................................171
TRUNK LID OPENER .......................................173
Component Parts and Harness Connector Loca-
tion ........................................................................
173
System Description ...............................................173
Wiring Diagram - TLID - ........................................174
Terminal and Reference Value for BCM ...............175
Terminal and Reference Value for Intelligent Key
Unit ........................................................................
175
CONSULT-III Function (BCM) ..............................176
Work Flow .............................................................176
Trouble Diagnosis Chart by Symptom ..................176
BCM Power Supply and Ground Circuit ................177
Check Trunk Lid Opener Switch Circuit (Without
Intelligent Key or Power Windows) .......................
177
Check Trunk Lid Opener Switch Circuit (Without
Intelligent Key, with Power Windows) ...................
179
Check Trunk Lid Opener Switch Circuit (With Intel-
ligent Key) .............................................................
182
Check Trunk Release Solenoid Circuit .................183

BL-6
< SERVICE INFORMATION >
PREPARATION
PREPARATION
Special Service ToolINFOID:0000000001703942
Commercial Service ToolINFOID:0000000001703943
Tool number
(Kent-Moore No.)
Tool nameDescription
—
(J-39570)
Chassis earLocating the noise
—
(J-43980)
NISSAN Squeak and Rat-
tle KitRepairing the cause of noise
—
(J-43241)
Remote Keyless Entry
Te s t e rUsed to test key fobs
SIIA0993E
SIIA0994E
LEL946A
Tool name Description
Engine ear Locating the noise
SIIA0995E