2008 NISSAN LATIO service

REAR SEAT
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< SERVICE INFORMATION >
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NOTE:
Confirm that side hinge bracket location pin is set to the hole on the seatback backside.
Disassembly and AssemblyINFOID:0000000001704271
60:40 SPLIT FOLD DOWN SEAT - SEDAN
Disassembly of Armrest
1. Fold down the armrest and remove the armrest bolt cover (A).
2. Remove the armrest bolt (A).
3. Push the armrest toward left side while pulling backward to
remove.
4. Remove the rear seat bushing, and then remove the armrest
hinge cover by pulling it backward.
Assembly of Armrest
Assembly in the reverse order of disassembly.
WIIA1384E
WIIA1385E
PIIB2915J
PIIB6507E

SE-24
< SERVICE INFORMATION >
REAR SEAT
Disassembly of Seatback Trim and Pad
1. Remove the headrest.
2. Remove the retainer under the back of seatback.
3. Remove the clips, and then remove the striker cover.
4. Remove the headrest holder.
5. To remove armrest, refer to "Disassembly of Armrest " .
6. Remove the seatback trim.
7. Remove the bolts, and then remove the rear seat lock assembly.
8. Remove the seatback pad from the seatback frame.
9. Remove the seatback center bracket bolt and then remove the seatback frame.
Assembly of Seatback Trim and Pad
Assembly is the reverse order of disassembly. Be careful of the following one point.
• Before installing headrest holder, check its orientation (front/rear and right/left).
PIIB2486J
PIIB2485J
PIIB4084J
PIIB2487J

REAR SEAT
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< SERVICE INFORMATION >
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P Disassembly of Seat Cushion Trim and Pad
Remove the rings to separate the trim and pad.
Assembly of Seat Cushion Trim and Pad
Assembly is the reverse order of disassembly.
Removal and InstallationINFOID:0000000001704272
CAUTION:
When removing and installing, use shop cloths to protect parts from damage.
FIXED BACK SEAT
Removal
1. Pull seat cushion up, and then remove the seat cushion from the
seat cushion hook. Slide the seat cushion forward.
2. Remove the center seatbelt anchor bolt (A) from under the seat
and slide the seatbelt through the seat cushion trim cover.
3. Remove the lower seatback bolts and lift seatback to disengage
from upper seatback bracket.
Installation
Installation is the reverse order of removal.
Disassembly and AssemblyINFOID:0000000001704273
FIXED BACK SEAT
Disassembly of SeatbackTrim and Pad
Remove the rings to separate the trim and pad.
Assembly of Seatback Trim and Pad
Assembly is the reverse order of disassembly. Be careful of the following one point.
PIIB4085J
WIIA1380E
WIIA1381E

SE-26
< SERVICE INFORMATION >
REAR SEAT
Disassembly of Seat Cushion Trim and Pad
Remove the rings to separate the trim and pad.
Assembly of Seat Cushion Trim and Pad
Assembly is the reverse order of disassembly.

SRS-1
RESTRAINTS
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SECTION SRS
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SRS
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CONTENTS
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
PRECAUTION ...............................................2
PRECAUTIONS ...................................................2
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ...................................................................
2
Precaution for SRS "AIR BAG" and "SEAT BELT
PRE-TENSIONER" Service ......................................
2
Occupant Classification System Precaution .............2
SYMPTOM DIAGNOSIS ...............................3
SUPPLEMENTAL RESTRAINT SYSTEM
(SRS) ...................................................................
3
SRS Configuration ....................................................3
Driver Air Bag Module ...............................................4
Front Passenger Air Bag Module ..............................4
Front Side Air Bag .....................................................4
Side Curtain Air Bag ..................................................4
Front Seat Belt Pre-tensioner with Load Limiter .......5
Occupant Classification System (OCS) ....................5
Direct-connect SRS Component Connectors ............6
TROUBLE DIAGNOSIS ......................................7
Trouble Diagnosis Introduction .................................7
SRS Component Parts Location ...............................9
Schematic ...............................................................10
Wiring Diagram - SRS- ............................................11
CONSULT-III Function (AIR BAG) ..........................16
Self-Diagnosis Function (Without CONSULT-III) ....17
SRS Operation Check .............................................18
Trouble Diagnosis with CONSULT-III .....................19
Trouble Diagnosis without CONSULT-III ................27
Trouble Diagnosis: "AIR BAG" Warning Lamp
Does Not Turn Off ...................................................
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Trouble Diagnosis: "AIR BAG" Warning Lamp
Does Not Turn On ...................................................
31
ON-VEHICLE REPAIR .................................33
DRIVER AIR BAG MODULE ............................33
Removal and Installation .........................................33
SPIRAL CABLE ................................................36
Removal and Installation .........................................36
FRONT PASSENGER AIR BAG MODULE ......38
Removal and Installation .........................................38
SIDE CURTAIN AIR BAG MODULE ................39
Component ..............................................................39
Removal and Installation .........................................39
CRASH ZONE SENSOR ...................................41
Removal and Installation .........................................41
SIDE AIR BAG (SATELLITE) SENSOR ...........42
Removal and Installation .........................................42
FRONT SEAT BELT PRE-TENSIONER ...........43
Removal and Installation .........................................43
DIAGNOSIS SENSOR UNIT .............................44
Removal and Installation .........................................44
OCCUPANT CLASSIFICATION SYSTEM
CONTROL UNIT ................................................
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Removal and Installation .........................................45
COLLISION DIAGNOSIS ..................................46
For Frontal Collision ................................................46
For Side and Rollover Collision ...............................47

SRS-2
< PRECAUTION >
PRECAUTIONS
PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000001703904
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 SR 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 SR 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.
Precaution for SRS "AIR BAG" and "SEAT BELT PRE-TENSIONER" Service
INFOID:0000000001703905
• Do not use electrical test equipment to check SRS circuits unless instructed to in this Service Manual.
• Before servicing the SRS, turn ignition switch OFF, disconnect both battery cables and wait at least 3 min-
utes.
For approximately 3 minutes after the cables are removed, it is still possible for the air bag and seat belt pre-
tensioner to deploy. Therefore, do not work on any SRS connectors or wires until at least 3 minutes have
passed.
• The air bag diagnosis sensor unit must always be installed with the arrow mark “⇐” pointing toward the front
of the vehicle for proper operation. Also check air bag diagnosis sensor unit for cracks, deformities or rust
before installation and replace as required.
• The spiral cable must be aligned with the neutral position since its rotations are limited. Do not attempt to
turn steering wheel or column after removal of steering gear.
• Handle air bag module carefully. Always place driver and front passenger air bag modules with the pad side
facing upward and seat mounted front side air bag module standing with the stud bolt side facing down.
• Conduct self-diagnosis to check entire SRS for proper function after replacing any components.
• After air bag inflates, the front instrument panel assembly should be replaced if damaged.
• Do not reuse center pillar upper garnish if removed.
Occupant Classification System PrecautionINFOID:0000000001703906
Replace control unit and passenger front seat cushion as an assembly.

TROUBLE DIAGNOSIS
SRS-7
< SYMPTOM DIAGNOSIS >
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TROUBLE DIAGNOSIS
Trouble Diagnosis IntroductionINFOID:0000000001703915
CAUTION:
• Do not use electrical test equipment on any circuit related to the SRS unless instructed to do so in
this Service Manual.
• Do not attempt to repair, splice or modify SRS wiring harnesses. If a harness is damaged, replace it
with a new one.
• Keep ground connections clean.
DIAGNOSIS FUNCTION
The SRS self-diagnosis results can be read by using “AIR BAG” warning lamp and/or CONSULT-III.
The User mode is exclusively prepared for the customer (driver). This mode warns the driver of a system mal-
function through the operation of the “AIR BAG” warning lamp.
The Diagnosis mode allows the technician to locate and inspect the malfunctioning part.
The mode applications for the “AIR BAG” warning lamp and CONSULT-III are as follows:
HOW TO PERFORM TROUBLE DIAGNOSES FOR QUICK AND ACCURATE REPAIR
A good understanding of the malfunction conditions can make troubleshooting faster and more accurate.
In general, each customer feels differently about a malfunction. It is important to fully understand the symp-
toms or conditions for a customer complaint.
Information From Customer
WHAT - Vehicle model
WHEN - Date, Frequencies
WHERE - Road conditions
HOW - Operating conditions, Symptoms
Preliminary Check
Check that the following parts are in good order.
• Battery (Refer to SC-4, "
How to Handle Battery".)
• Fuses (Refer to SRS-10, "
Schematic".)
• System component-to-harness connections
WORK FLOW
User mode Diagnosis mode Display type
“AIR BAG” warning lamp X X ON-OFF operation
CONSULT-III — X Monitoring

STC-1
STEERING
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SECTION STC
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CONTENTS
STEERING CONTROL SYSTEM
EPS
SERVICE INFORMATION ............................
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PRECAUTIONS ...................................................2
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ...................................................................
2
Precaution Necessary for Steering Wheel Rota-
tion After Battery Disconnect .....................................
2
Service Notice or Precaution for EPS System ..........2
EPS SYSTEM ......................................................4
System Description ...................................................4
Schematic .................................................................5
CAN Communication .................................................5
TROUBLE DIAGNOSIS ......................................6
Fail-Safe Function .....................................................6
How to Perform Trouble Diagnosis ...........................6
Component Parts Location ........................................7
Wiring Diagram - EPS - .............................................8
EPS Control Unit Input/Output Signal Reference
Value .........................................................................
9
EPS Terminal and Reference Value ........................10
CONSULT-III Function (EPS) ..................................11
Symptom Chart ........................................................13
TROUBLE DIAGNOSIS FOR SYSTEM ............14
DTC C1601 BATTERY VOLT ..................................14
DTC C1604 TORQUE SENSOR .............................15
DTC C1606 EPS MOTOR .......................................16
DTC C1607 EEPROM .............................................17
DTC C1608 CONTROL UNIT ..................................17
DTC C1609 CAN VHCL SPEED .............................18
DTC C1610 CAN ENG RPM ...................................19
DTC U1000 CAN COMM CIRCUIT .........................19
Component Inspection .............................................19
TROUBLE DIAGNOSIS FOR SYMPTOMS ......21
EPS Warning Lamp Does Not Turn ON ..................21
EPS Warning Lamp Does Not Turn OFF ................21
Steering Wheel Turning Force Is Heavy or Light .....22
Unbalance Steering Wheel Turning Force and Re-
turn Between Right and Left ....................................
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Unbalance Steering Wheel Turning Force (Torque
Variation) .................................................................
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