2009 NISSAN LATIO service

REAR SEAT
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5. Remove the kicking plate rear inner. Refer to
EI-40, " Removal and Installation " .
6. Remove the bolt under the seatback side.
7. Pull seatback side up, and then remove seatback side.
8. Remove the bolts, and then remove rear seatback center bracket.
9. Remove the bolt, and then remove rear seatback side bracket from the vehicle.
10. Remove the rear seatback finisher. Refer to EI-53, " Removal and Installation " .
11. Remove the bolts, and then remove the rear seat striker.
Installation Installation is in the reverse order of removal. Be careful of the following point.
• When installing the rear seatback side bracket perform the following procedure.
1. Install the rear seatback side bracket in the vehicle.
2. Temporarily tighten the seatback asse mbly and rear seatback side bracket.
3. Lift to fold up seatback assembly. Be sure to lock seatback assembly to rear seat striker.
4. Tighten the bolt. PIIB2482J
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REAR SEAT
NOTE:
Confirm that side hinge bracket location pin is set to the hole on the seatback backside.
Disassembly and Assembly INFOID:0000000004306516
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 is in the reverse order of disassembly. WIIA1384E
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REAR SEAT
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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 in the reverse order of disassembly.
• Before installing headrest holder, check its orientation (front/rear and right/left). PIIB2486J
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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 in the reverse order of disassembly.
Removal and Installation INFOID:0000000004306517
CAUTION:
When removing and in stalling, 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 (1).
3. Remove the lower seatback bolts (A) and lift seatback to disen- gage from upper seatback bracket.
Installation
Installation is in the reverse order of removal.
Disassembly and Assembly INFOID:0000000004306518
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 in the reverse order of disassembly. PIIB4085J
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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
Precaution Necessary fo r Steering Wheel Rota-
tion After Battery Disconnect ............................... ......
2
Occupant Classification System Precaution ....... ......3
SYMPTOM DIAGNOSIS ..... ..........................4
SUPPLEMENTAL RESTRAINT SYSTEM
(SRS) .............................................................. .....
4
SRS Configuration .............................................. ......4
Driver Air Bag Module ......................................... ......5
Front Passenger Air Bag Module ..............................5
Front Side Air Bag ............................................... ......5
Side Curtain Air Bag ............................................ ......5
Front Seat Belt Pre-tensioner with Load Limiter . ......6
Occupant Classification System (OCS) .............. ......6
Direct-connect SRS Component Connectors ...... ......7
TROUBLE DIAGNOSIS ................................. .....8
Trouble Diagnosis Introduction ........................... ......8
SRS Component Parts Location ......................... ....10
Schematic ........................................................... ....11
Wiring Diagram - SRS- ........................................ ....12
CONSULT-III Function (AIR BAG) ...................... ....17
Self-Diagnosis Function (Without CONSULT-III) .... 18
SRS Operation Check ......................................... ....19
Trouble Diagnosis with CONSULT-III ................. ....20
Trouble Diagnosis without CONSULT-III ............ ....28
Trouble Diagnosis: "AIR BAG" Warning Lamp
Does Not Turn Off ............................................... ....
31 Trouble Diagnosis: "AIR BAG" Warning Lamp
Does Not Turn On ............................................... ....
32
ON-VEHICLE REPAIR ..... ............................34
DRIVER AIR BAG MODULE ............................ 34
Removal and Installation ..................................... ....34
SPIRAL CABLE ................................................ 37
Removal and Installation ..................................... ....37
FRONT PASSENGER AIR BAG MODULE ...... 39
Removal and Installation ..................................... ....39
SIDE CURTAIN AIR BAG MODULE ................ 40
Component .......................................................... ....40
Removal and Installation ..................................... ....40
CRASH ZONE SEN SOR ................................... 42
Removal and Installation ..................................... ....42
SIDE AIR BAG (SATELLITE) SENSOR ........... 43
Removal and Installation ..................................... ....43
FRONT SEAT BELT PRE-TENSIONER ........... 44
Removal and Installation ..................................... ....44
DIAGNOSIS SENSOR UNIT ............................. 45
Removal and Installation ..................................... ....45
OCCUPANT CLASSIFICATION SYSTEM
CONTROL UNIT ................................................ 46
Removal and Installation ..................................... ....46
COLLISION DIAGNOSIS .................................. 47
For Frontal Collision ............................................ ....47
For Side and Rollover Colli sion ...............................48

STC
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CONTENTS
STEERING CONTROL SYSTEM
EPS
SERVICE INFORMATION .. ..........................
2
PRECAUTIONS .............................................. .....2
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ......
2
Precaution Necessary fo r Steering Wheel Rota-
tion After Battery Disconnect ............................... ......
2
Service Notice or Precau tion for EPS System ..........3
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/O utput 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 ................................ ....
23
Unbalance Steering Wheel Turning Force (Torque
Variation) ............................................................. ....
24

PRECAUTIONS
STC-3
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5. When the repair work is completed, return the ignition switch to the
″LOCK ″ position before connecting
the battery cables. (At this time, the steering lock mechanism will engage.)
6. Perform a self-diagnosis check of al l control units using CONSULT-III.
Service Notice or Precaution for EPS System INFOID:0000000004307286
CAUTION:
Check or confirm the following item wh en performing the trouble diagnosis.
• Check any possible causes by interviewing the symptom and it’s condition from the customer if any
malfunction, such as EPS warn ing lamp turns ON, occurs.
• Check if air pressure and size of tires are proper, the specified part is used for the steering wheel,
and control unit is genuine part.
• Check if the connection of steer ing column assembly and steering gear assembly is proper (there is
not looseness of mounting bolts, damage of rods, boots or sealants, and leakage of grease, etc).
• Check if the wheel alignmen t is adjusted properly.
• Check if there is any damage or modification to su spension or body resulting in increased weight or
altered ground clearance.
• Check if installation conditions of each link and suspension are proper.
• Check if the battery voltage is proper
• Check connection conditions of each connector are proper.
• Before connecting or disconnect ing the EPS control unit har-
ness connector, turn ignition switch “OFF” and disconnect
battery ground cable. Because battery voltage is applied to
EPS control unit even if igniti on switch is turned “OFF”.
• When connecting or disconnect ing pin connectors into or
from EPS control unit, take care not to damage pin terminals
(bend or break).
When connecting pin connectors, make sure that there are no
bends or breaks on EPS control unit pin terminal.
• Before replacing EPS control unit, perform EPS control unit input/output signal inspectio n and make sure whether EPS
control unit functions properly or not. Refer to STC-9, " EPS
Control Unit Input/Output Signal Reference Value " . SEF289H
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[EPS]
TROUBLE DIAGNOSIS
TROUBLE DIAGNOSIS
Fail-Safe Function INFOID:0000000004307290
• If any malfunction occurs in the system, and control unit detects the malfunction, EPS warning lamp on com-
bination meter turns ON to indicate system malfunction.
• When EPS warning lamp is ON, enters a manual steer ing state. (Control turning force steering wheel
becomes heavy.)
How to Perform Trouble Diagnosis INFOID:0000000004307291
BASIC CONCEPT
• To perform trouble diagnosis, it is a must to have an understanding about vehicle systems (control and mechanism) thoroughly.
• It is also important to clarify customer complaints before starting
the inspection.
First of all, reproduce the symptoms, and understand them fully.
Ask customer about his/her complaints carefully. In some cases, it
will be necessary to check symptoms by driving vehicle with cus-
tomer.
CAUTION:
Customers are not professionals. It is dangerous to make an
easy guess like “maybe the customer means that...” or
“maybe the customer mentions this symptom”.
• It is essential to check symptoms right from the beginning in order to repair malfunctions completely.
For intermittent malfunctions, reproduce symptoms based on inter-
view with customer and past examples. Do not perform inspection
on ad hoc basis. Most intermittent malfunctions are caused by
poor contacts. In this case, it will be effective to shake suspected
harness or connector by hand. When repairing without any symp-
tom diagnosis, you cannot judge if malfunctions has actually been
eliminated.
PRECAUTIONS FOR TROUBLE DIAGNOSIS
• Be sure to check the procedures of the trouble diagnosis in advance. Refer to "How to Perform Trouble Diagnosis" .
• Always erase memory after completing trouble diagnosis. Refer to STC-11, " CONSULT-III Function (EPS) " .
• Checking continuity and voltage between units, be sure to check connector terminals for disconnection,
looseness, bend, or collapse. Repair or replace app licable part if any non-standard condition is detected.
• Be careful not to forcibly extend any connector terminal if a circuit tester is used for the check.
• Always confirm the general precautions. Refer to GI-3, " General Precaution " .
INTERVIEW
• Complaints vary depending on the person. It is important to clarify the customer's actual remarks.
• Ask the customer about what sy mptoms occur under what condi-
tions. Use the information to reproduce the symptom of confirm by
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