2008 NISSAN LATIO warning

CAN COMMUNICATION SYSTEM
LAN-25
< FUNCTION DIAGNOSIS >[CAN]
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*1: A/T models
*2: CVT models
*3: Models for Canada
*4: Models for USA
*5: Models without ABS
NOTE:
CAN data of the air bag diagnosis sensor unit is not used by usual service work, thus it is omitted.
Brake warning lamp signal R T
A/T check indicator signal R T
A/T self-diagnosis signal R T
OD OFF indicator signal R T
Output shaft revolution signal R T T
Shift position indicator signal R T T
Turbine revolution signal R T
CVT self-diagnosis signal R T
Input shaft revolution signal R T
OD OFF indicator signal R T
Front wiper stop position signal R T
High beam status signal RT
Low beam status signal RT
Oil pressure switch signal R T
Rear window defogger control signal RT Signal name/Connecting unit
ECM
BCM
EPS
I-KEY
M&A
ABS
TCM
*1
TCM
*2
IPDM-E

LT-1
ELECTRICAL
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SECTION LT
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CONTENTS
LIGHTING SYSTEM
SERVICE INFORMATION ............................3
PRECAUTIONS ...................................................3
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ...................................................................
3
HEADLAMP (FOR USA) .....................................4
Component Parts and Harness Connector Loca-
tion ............................................................................
4
System Description ...................................................4
CAN COMMUNICATION SYSTEM DESCRIP-
TION ..........................................................................
5
Schematic .................................................................6
Wiring Diagram .........................................................7
Terminal and Reference Value for BCM .................10
Terminal and Reference Value for IPDM E/R .........10
How to Perform Trouble Diagnosis .........................11
Preliminary Check ...................................................11
CONSULT-III Function (BCM) .................................11
CONSULT-III Function (IPDM E/R) .........................12
Headlamp High Beam Does Not Illuminate (Both
Sides) ......................................................................
13
Headlamp High Beam Does Not Illuminate (One
Side) ........................................................................
15
High Beam Indicator Lamp Does Not Illuminate .....16
Headlamp Low Beam Does Not Illuminate (Both
Sides) ......................................................................
16
Headlamp Low Beam Does Not Illuminate (One
Side) ........................................................................
19
Headlamps Do Not Turn OFF .................................20
Aiming Adjustment ..................................................21
Bulb Replacement ...................................................22
Removal and Installation .........................................23
Disassembly and Assembly ....................................23
HEADLAMP (FOR CANADA) - DAYTIME
LIGHT SYSTEM - ...............................................
25
Component Parts and Harness Connector Loca-
tion ..........................................................................
25
System Description .................................................25
CAN Communication System Description ...............27
Schematic ................................................................28
Wiring Diagram - DTRL - .........................................29
Terminal and Reference Value for BCM ..................32
Terminal and Reference Value for IPDM E/R ..........32
How to Perform Trouble Diagnosis ..........................33
Preliminary Check ...................................................33
CONSULT-III Function (BCM) .................................33
CONSULT-III Function (IPDM E/R) .........................33
Daytime Light Control Does Not Operate Properly
(High Beam Headlamps Operate Properly) .............
33
Aiming Adjustment ...................................................35
Bulb Replacement ...................................................36
Removal and Installation .........................................37
Disassembly and Assembly .....................................37
FRONT FOG LAMP ..........................................39
Component Parts and Harness Connector Loca-
tion ...........................................................................
39
System Description ..................................................39
CAN Communication System Description ...............40
Wiring Diagram - F/FOG - .......................................41
Terminal and Reference Value for BCM ..................42
Terminal and Reference Value for IPDM E/R ..........42
How to Proceed with Trouble Diagnosis ..................43
Preliminary Check ...................................................43
CONSULT-III Function (BCM) .................................43
CONSULT-III Function (IPDM E/R) .........................43
Front Fog lamps Do Not Illuminate (Both Sides) .....43
Front Fog Lamp Does Not Illuminate (One Side) ....45
Aiming Adjustment ...................................................46
Bulb Replacement ...................................................47
Removal and Installation .........................................47
TURN SIGNAL AND HAZARD WARNING
LAMPS ..............................................................
48
Component Parts and Harness Connector Loca-
tion ...........................................................................
48
System Description ..................................................48
CAN Communication System Description ...............50
Schematic ................................................................51

LT-2
Wiring Diagram - TURN - ........................................52
Terminal and Reference Value for BCM .................55
How to Proceed with Trouble Diagnosis .................55
Preliminary Check ..................................................56
CONSULT-III Function (BCM) ................................56
Turn Signals Do Not Operate .................................56
Front Turn Signal Lamp Does Not Operate ............56
Rear Turn Signal Lamp Does Not Operate ............57
Hazard Warning Lamp Does Not Operate But
Turn Signal Lamp Operates ...................................
58
Turn Signal Indicator Lamp Does Not Operate ......59
Bulb Replacement for Front Turn Signal Lamp ......59
Bulb Replacement for Rear Turn Signal Lamp .......59
Removal and Installation of Front Turn Signal
Lamp .......................................................................
59
Removal and Installation of Rear Turn Signal
Lamp .......................................................................
59
LIGHTING AND TURN SIGNAL SWITCH .........60
Removal and Installation ........................................60
HAZARD SWITCH .............................................61
Removal and Installation ........................................61
COMBINATION SWITCH ..................................62
Wiring Diagram - COMBSW - .................................62
Combination Switch Reading Function ...................62
Terminal and Reference Value for BCM .................63
CONSULT-III Function (BCM) ................................63
Combination Switch Inspection ..............................63
Removal and Installation ........................................65
STOP LAMP ......................................................66
Wiring Diagram - STOP/L .......................................66
Wiring Diagram - STOP/L .......................................67
Bulb Replacement for High-Mounted Stop Lamp ...67
Bulb Replacement for Rear Combination Lamp for
Stop Lamp ..............................................................
68
Removal and Installation of High-Mounted Stop
Lamp .......................................................................
68
Removal and Installation of Rear Combination
Lamp for Stop Lamp ...............................................
69
BACK-UP LAMP ................................................70
Wiring Diagram - BACK/L - .....................................70
Bulb Replacement ..................................................70
Removal and Installation ........................................71
PARKING, LICENSE PLATE AND TAIL
LAMPS ...............................................................
72
Component Parts and Harness Connector Loca-
tion ..........................................................................
72
System Description .................................................72
CAN Communication System Description ..............73
Schematic ...............................................................74
Wiring Diagram - TAIL/L - .......................................75
Terminal and Reference Value for BCM .................78
Terminal and Reference Value for IPDM E/R .........78
How to Proceed with Trouble Diagnosis .................79
Preliminary Check ...................................................79
CONSULT-III Function (BCM) ................................79
CONSULT-III Function (IPDM E/R) ........................79
Parking, License Plate and Tail Lamps Do Not Il-
luminate ..................................................................
79
Parking, License Plate and Tail Lamps Do Not
Turn OFF (After Approx. 10 Minutes) .....................
82
Bulb Replacement ...................................................82
Removal and Installation .........................................83
REAR COMBINATION LAMP ...........................85
Component .............................................................85
Bulb Replacement ...................................................85
Removal and Installation .........................................86
Disassembly and Assembly ....................................86
INTERIOR LAMP ...............................................87
Map Lamp ...............................................................87
Luggage Compartment Lamp .................................87
INTERIOR ROOM LAMP ...................................89
Component Parts and Harness Connector Loca-
tion ..........................................................................
89
System Description .................................................89
Schematic ...............................................................93
Wiring Diagram - INT/L - .........................................94
Terminal and Reference Value for BCM .................98
How to Proceed with Trouble Diagnosis .................98
Preliminary Check ...................................................99
CONSULT-III Function (BCM) ................................99
Interior Room Lamp Control Does Not Operate
(With Map Lamp) ..................................................
100
Interior Room Lamp Control Does Not Operate
(Without Map Lamp) .............................................
102
Bulb Replacement .................................................103
Removal and Installation .......................................103
ILLUMINATION ................................................105
System Description ...............................................105
CAN Communication System Description ............106
Schematic .............................................................107
Wiring Diagram - ILL - ...........................................108
Bulb Replacement .................................................111
BULB SPECIFICATIONS .................................113
Headlamp ..............................................................113
Exterior Lamp ........................................................113
Interior Lamp/Illumination ......................................113

PRECAUTIONS
LT-3
< SERVICE INFORMATION >
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SERVICE INFORMATION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000001704359
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SRS and SB section of this Service Man-
ual.
WARNING:
• To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death in
the event of a collision which would result in air bag inflation, all maintenance must be performed by
an authorized NISSAN/INFINITI dealer.
• Improper maintenance, including incorrect removal and installation of the SRS, can lead to personal
injury caused by unintentional activation of the system. For removal of Spiral Cable and Air Bag
Module, see the SRS section.
• Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or har-
ness connectors.

LT-48
< SERVICE INFORMATION >
TURN SIGNAL AND HAZARD WARNING LAMPS
TURN SIGNAL AND HAZARD WARNING LAMPS
Component Parts and Harness Connector LocationINFOID:0000000001704412
System DescriptionINFOID:0000000001704413
TURN SIGNAL OPERATION
Power is supplied at all times
• through 40A fusible link (letter g , located in the fuse and fusible link box)
• to BCM (body control module) terminal 70,
• through 10A fuse [No. 8, located in the fuse block (J/B)]
• to BCM terminal 57,
• through 10A fuse [No. 13, located in the fuse block (J/B)]
• to combination meter terminal 27.
With the ignition switch in the ON or START position, power is supplied
• through 10A fuse [No. 6, located in fuse block (J/B)]
• to BCM terminal 38,
• through 10A fuse [No. 3, located in fuse block (J/B)]
• to combination meter terminal 28.
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.
Ground is supplied
• to BCM terminal 67 and
• to combination meter terminals 21, 22 and 23
• through grounds M57 and M61.
LH Turn Signal Lamp
When the turn signal switch is moved to the left turn position, the BCM receives an input signal requesting left
turn signals to flash. The BCM then supplies power
• through BCM terminal 60
• to front combination lamp LH terminal 4 and
• to rear combination lamp LH terminal 6.
Ground is supplied
• to front combination lamp LH terminal 5
• through grounds E15 and E24,
1. BCM M18 and M20 (view with glove
box removed)2. Hazard switch M55 (late production) 3. Hazard switch M55 (early produc-
tion)
4. Combination switch (lighting switch)
M285. Combination meter M24
WKIA6002E

TURN SIGNAL AND HAZARD WARNING LAMPS
LT-49
< SERVICE INFORMATION >
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• to rear combination lamp LH terminal 1
• through grounds B7 and B19.
The BCM also sends a request, via the CAN communication lines, to the combination meter to flash the left
turn signal indicator. The unified meter control unit in the combination meter supplies ground to the left turn
signal indicator lamp and activates the audible turn signal indicator.
With power, ground and input supplied, the BCM controls the flashing of the turn signal lamps.
RH Turn Signal Lamp
When turn signal switch is moved to the right turn position, the BCM receives an input signal requesting right
turn signals to flash. The BCM then supplies power
• through BCM terminal 61
• to front combination lamp RH terminal 4 and
• to rear combination lamp RH terminal 6.
Ground is supplied
• to front combination lamp RH terminal 5
• through grounds E15 and E24,
• to rear combination lamp RH terminal 1
• through grounds B117, B132 (all models) and D402 (with hatchback).
The BCM also sends a request, via the CAN communication lines, to the combination meter to flash the right
turn signal indicator. The unified meter control unit in the combination meter supplies ground to the right turn
signal indicator lamp and activates the audible turn signal indicator.
With power, ground and input supplied, the BCM controls the flashing of the turn signal lamps.
HAZARD LAMP OPERATION
Power is supplied at all times
• through 40A fusible link (letter g , located in fuse, fusible link and relay box)
• to BCM terminal 70,
• through 10A fuse [No. 8, located in fuse block (J/B)]
• to BCM terminal 57,
• through 10A fuse [No. 13, located in fuse block (J/B)]
• to combination meter terminal 27.
Ground is supplied
• to hazard switch terminal 1,
• to BCM terminal 67, and
• to combination meter terminals 21, 22 and 23
• through grounds M57 and M61.
When hazard switch is depressed, ground is supplied
• through hazard switch terminal 2
• to BCM terminal 29.
BCM then supplies power
• to front combination lamp LH terminal 4 and
• to rear combination lamp LH terminal 6
• through BCM terminal 60,
• to front combination lamp RH terminal 4 and
• to rear combination lamp RH terminal 6
• through BCM terminal 61.
Ground is supplied
• to front combination lamp LH and RH terminal 5
• through grounds E15 and E24,
• to rear combination lamp LH terminal 1
• through grounds B7 and B19,
• to rear combination lamp RH terminal 1
• through grounds B117, B132 and D402 (hatchback).
The BCM also supplies input to combination meter across the CAN communication lines. This input is pro-
cessed by unified meter control unit in combination meter, which in turn supplies ground to the left and right
turn signal indicator lamps.
With power and input supplied, BCM controls flashing of hazard warning lamps.
REMOTE KEYLESS ENTRY SYSTEM OPERATION
Power is supplied at all times
• through 40A fusible link (letter g , located in fuse, fusible link and relay box)
• to BCM terminal 70,

LT-50
< SERVICE INFORMATION >
TURN SIGNAL AND HAZARD WARNING LAMPS
• through 10A fuse [No. 13, located in fuse block (J/B)]
• to combination meter terminal 27.
Ground is supplied
• to BCM terminal 67 and
• to combination meter terminals 21, 22 and 23
• through grounds M57 and M61.
When the remote keyless entry system is triggered by input from the keyfob, the BCM supplies power
• through BCM terminal 60
• to front combination lamp LH terminal 4 and
• to rear combination lamp LH terminal 6,
• through BCM terminal 61
• to front turn signal lamp RH terminal 4 and
• to rear combination lamp RH terminal 6.
Ground is supplied
• to front combination lamp LH and RH terminals 5
• through grounds E15 and E24,
• to rear combination lamp LH terminal 1
• through grounds B7 and B19,
• to rear combination lamp RH terminal 1
• through grounds B117, B132 (all models) and D402 (with hatchback).
The BCM also supplies input to combination meter via the CAN communication lines. This input is processed
by the unified meter control unit in combination meter, which in turn supplies ground to the left and right turn
signal indicator lamps.
With power and ground supplied, BCM controls flashing of hazard warning lamps when keyfob is used to acti-
vate remote keyless entry system.
COMBINATION SWITCH READING FUNCTION
Refer to BCS-3, "System Description" .
CAN Communication System DescriptionINFOID:0000000001704414
Refer to LAN-6, "System Description" .

TURN SIGNAL AND HAZARD WARNING LAMPS
LT-51
< SERVICE INFORMATION >
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SchematicINFOID:0000000001704415
WKWA4974E