2007 NISSAN LATIO Service Repair Manual

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Page 2777 of 2896

NISSAN LATIO 2007 Service Repair Manual CRASH ZONE SENSOR
SRS-49
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SRS
Revision: June 20062007 Versa
CRASH ZONE SENSORPFP:98531
Removal and InstallationEHS001UH
REMOVAL
CAUTION:
Before servicing the SRS, turn ignition

Page 2778 of 2896

NISSAN LATIO 2007 Service Repair Manual SRS-50
SIDE AIR BAG (SATELLITE) SENSOR
Revision: June 20062007 Versa
SIDE AIR BAG (SATELLITE) SENSORPFP:98830
Removal and InstallationEHS001UI
REMOVAL
WAR NIN G:
Do not reuse center pillar upper garni

Page 2779 of 2896

NISSAN LATIO 2007 Service Repair Manual FRONT SEAT BELT PRE-TENSIONER
SRS-51
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SRS
Revision: June 20062007 Versa
FRONT SEAT BELT PRE-TENSIONERPFP:86884
Removal and InstallationEHS001UJ
For removal and installation proce

Page 2780 of 2896

NISSAN LATIO 2007 Service Repair Manual SRS-52
DIAGNOSIS SENSOR UNIT
Revision: June 20062007 Versa
DIAGNOSIS SENSOR UNITPFP:28556
Removal and InstallationEHS001UK
REMOVAL
WAR NIN G:
Before disconnecting diagnosis sensor unit harness connect

SRS-52
DIAGNOSIS SENSOR UNIT
Revision: June 20062007 Versa
DIAGNOSIS SENSOR UNITPFP:28556
Removal and InstallationEHS001UK
REMOVAL
WAR NIN G:
Before disconnecting diagnosis sensor unit harness connector(s), be sure to disconnect harness con-
nectors from air bag modules and front seat belt pre-tensioner to prevent deployment by static elec-
tricity.
CAUTION:
Before servicing the SRS, turn the ignition switch OFF, disconnect both battery cables and wait at
least 3 minutes.
Do not disassemble diagnosis sensor unit.
Do not use old bolts; replace with new bolts.
Replace the diagnosis sensor unit if it has been dropped or sustained an impact.
Check diagnosis sensor unit bracket to make sure it is free of deformities, dents, cracks or rust. If
it shows any visible signs of damage, replace with new one.
The diagnosis sensor unit must always be installed with the arrow mark "⇐" pointing toward the
front of the vehicle for proper operation.
1. Disconnect the negative and positive battery cables, then wait at least 3 minutes.
2. Disconnect the harness connectors for each air bag module and seat belt pre-tensioner. Refer to SRS-41,
"DRIVER AIR BAG MODULE" , SRS-46, "FRONT PASSENGER AIR BAG MODULE" , SRS-47, "SIDE
CURTAIN AIR BAG MODULE" , SRS-51, "FRONT SEAT BELT PRE-TENSIONER" .
3. Remove center console assembly. Refer to IP-10, "
INSTRUMENT PANEL ASSEMBLY" .
4. Disconnect diagnosis sensor unit connectors.
5. Remove the bolts and the ground bolt, then remove the diagnosis sensor unit.
INSTALLATION
Installation is in the reverse order of removal.
The diagnosis sensor unit must always be installed with the arrow mark "⇐" pointing toward the front of
the vehicle.
Follow the tightening sequence 1,2,3,4 as shown.
After the work is completed, perform self-diagnosis to check that no malfunction is detected. Refer to
SRS-21, "
SRS Operation Check" .
ECU DISCRIMINATED NO.
After replacing the diagnosis sensor unit, confirm that the diagnosis sensor unit identification is correct for the
vehicle as equipped. Refer to SRS-19, "
CONSULT-II Function (AIR BAG)" .
1. Diagnosis sensor unit connectors 2. Ground Bolt 3. Bolt
4. Diagnosis sensor unit⇐Vehicle front
WHIA0323E

Page 2781 of 2896

NISSAN LATIO 2007 Service Repair Manual OCCUPANT CLASSIFICATION SYSTEM CONTROL UNIT
SRS-53
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SRS
Revision: June 20062007 Versa
OCCUPANT CLASSIFICATION SYSTEM CONTROL UNITPFP:98852
Removal and InstallationEHS0 01 VA
The

Page 2782 of 2896

NISSAN LATIO 2007 Service Repair Manual SRS-54
COLLISION DIAGNOSIS
Revision: June 20062007 Versa
COLLISION DIAGNOSISPFP:00015
For Frontal CollisionEHS001VB
Check the SRS components using the following table.
After the work is completed, pe

SRS-54
COLLISION DIAGNOSIS
Revision: June 20062007 Versa
COLLISION DIAGNOSISPFP:00015
For Frontal CollisionEHS001VB
Check the SRS components using the following table.
After the work is completed, perform self-diagnosis to check that no malfunction is detected. Refer to
SRS-21, "
SRS Operation Check" .
SRS INSPECTION (FOR FRONTAL COLLISION)
Part SRS is activated SRS is NOT activated
Driver air bag module If the driver air bag
has deployed:
REPLACE
Install with new fas-
teners.If the driver air bag has NOT been activated:
1. Remove driver air bag module. Check harness cover and connectors for damage,
terminals for deformities, and harness for binding.
2. Install driver air bag module into the steering wheel to check fit and alignment with
the wheel.
3. If no damage is found, reinstall with new fasteners.
4. If damaged—REPLACE. Install driver air bag modules with new fasteners.
Front passenger air
bag moduleIf the front passenger
air bag has deployed:
REPLACE
Install with new fas-
teners.If the front passenger air bag has NOT been activated:
1. Remove front passenger air bag module. Check harness cover and connectors for
damage, terminals for deformities, and harness for binding.
2. Install front passenger air bag module into the instrument panel to check fit with the
instrument panel.
3. If no damage is found, reinstall with new fasteners.
4. If damaged—REPLACE. Install front passenger air bag modules with new fasten-
ers.
Crash zone sensor If any of the front air
bags or seat belt pre-
tensioners* have
been activated:
REPLACE the crash
zone sensor and
bracket with new fas-
teners.
*: Confirm seat belt
pre-tensioner activa-
tion using CONSULT-
II only.If the front air bags or seat belt pre-tensioners have NOT been activated:
1. Remove the crash zone sensor. Check harness connectors for damage, terminals
for deformities, and harness for binding.
2. Check for visible signs of damage (dents, cracks, deformation) of the crash zone
sensor and bracket.
3. Install the crash zone sensor to check fit.
4. If no damage is found, reinstall with new fasteners.
5. If damaged—REPLACE the crash zone sensor and bracket with new fasteners.
Seat belt pre-ten-
sioner assemblies
(All applicable loca-
tions: buckle, reel, lap
outer)If either the driver or
passenger seat belt
pre-tensioner* has
been activated:
REPLACE all seat
belt pre-tensioner
assemblies with new
fasteners.
*: Confirm seat belt
pre-tensioner activa-
tion using CONSULT-
II only.If the pre-tensioners have NOT been activated:
1. Remove seat belt pre-tensioners.
Check harness cover and connectors for damage, terminals for deformities, and
harness for binding.
2. Check belts for damage and anchors for loose mounting.
3. Check retractor for smooth operation.
4. Check seat belt adjuster for damage.
5. Check for deformities of the center pillar inner.
6. If the center pillar inner has no damage, REPLACE the seat belt pre-tensioner
assembly.
7. If no damage is found, reinstall seat belt pre-tensioner assembly.
8. If damaged—REPLACE. Install the seat belt pre-tensioners with new fasteners.
Diagnosis sensor unit If any of the SRS
components have
been activated:
REPLACE the diag-
nosis sensor unit.
Install with new fas-
teners.If none of the SRS components have been activated:
1. Check case for dents, cracks or deformities.
2. Check connectors for damage, and terminals for deformities.
3. If no damage is found, reinstall with new fasteners.
4. If damaged—REPLACE. Install diagnosis sensor unit with new fasteners.

Page 2783 of 2896

NISSAN LATIO 2007 Service Repair Manual COLLISION DIAGNOSIS
SRS-55
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SRS
Revision: June 20062007 Versa
For Side and Rollover CollisionEHS001VC
Check the SRS components using the following table.
After the work is compl

COLLISION DIAGNOSIS
SRS-55
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SRS
Revision: June 20062007 Versa
For Side and Rollover CollisionEHS001VC
Check the SRS components using the following table.
After the work is completed, perform self-diagnosis to check that no malfunction is detected. Refer to
SRS-21, "
SRS Operation Check" .
WHEN SRS IS ACTIVATED IN THE SIDE OR ROLLOVER COLLISION
1. Replace the following components:
–Front seat back assembly (on the side on which side air bag is activated)
–Diagnosis sensor unit
–(LH or RH) side air bag (satellite) sensor (on the side on which side air bag is activated)
2. Check the SRS components and the related parts using the following table.
–Replace any SRS components and the related parts showing visible signs of damage (dents, cracks,
deformation).
3. Conduct self-diagnosis using CONSULT-II and “AIR BAG” warning lamp. Refer to SRS-21, "
SRS Opera-
tion Check" for details. Ensure entire SRS operates properly.
WHEN SRS IS NOT ACTIVATED IN THE SIDE OR ROLLOVER COLLISION
1. Check the SRS components and the related parts using the following table.
–If the front seat back assembly is damaged, the front seat back assembly must be replaced.
2. Conduct self-diagnosis using CONSULT-II and “AIR BAG” warning lamp. Refer to SRS-21, "
SRS Opera-
tion Check" for details. Ensure entire SRS operates properly.
Steering wheel 1. Visually check steering wheel for deformities.
2. Check harness (built into steering wheel) and connectors for damage, and terminals for deformities.
3. Install driver air bag module into the steering wheel to check fit and alignment with the wheel.
4. Check steering wheel for excessive free play.
5. If no damage is found, reinstall.
6. If damaged—REPLACE.
Spiral cable If the driver front air
bag has deployed:
REPLACE the spiral
cable.If the driver front air bag has not deployed:
1. Visually check spiral cable and combination switch for damage.
2. Check connectors and protective tape for damage.
3. Check steering wheel for noise, binding or heavy operation.
4. If no damage is found, reinstall.
5. If damaged—REPLACE.
Occupant classifica-
tion system (Passen-
ger seat)1. Remove passenger seat.
2. Check control unit case for dents, cracks of deformities.
3. Check connectors and pressure sensor tube for damage, and terminals for deformities.
4. Check seat frame and cushion pan for dents or deformities.
5. If no damage is found, reinstall seat with new fasteners.
6. If damaged — REPLACE seat cushion assembly with new fasteners.
Harness and connec-
tors1. Check connectors for poor connection, damage, and terminals for deformities.
2. Check harness for binding, chafing, cuts, or deformities.
3. If no damage is found, reinstall the harness and connectors.
4. If damaged—REPLACE the damaged harness. Do not attempt to repair, splice or modify any SRS harness.
Instrument panel If the passenger front
air bag has deployed:
REPLACE the instru-
ment panel assembly.If the passenger front air bag has NOT deployed:
1. Visually check instrument panel for damage.
2. If no damage is found, reinstall the instrument panel.
3. If damaged—REPLACE the instrument panel. Part SRS is activated SRS is NOT activated

Page 2784 of 2896

NISSAN LATIO 2007 Service Repair Manual SRS-56
COLLISION DIAGNOSIS
Revision: June 20062007 Versa
SRS INSPECTION (FOR SIDE AND ROLLOVER COLLISION)
Part SRS is activated SRS is NOT activated
LH side curtain air
bag moduleIf the LH side curta

SRS-56
COLLISION DIAGNOSIS
Revision: June 20062007 Versa
SRS INSPECTION (FOR SIDE AND ROLLOVER COLLISION)
Part SRS is activated SRS is NOT activated
LH side curtain air
bag moduleIf the LH side curtain
air bag has deployed:
REPLACE the LH
side curtain air bag
module. (Repair the
center pillar inner, etc.
before installing new
one if damaged.)If the LH side curtain air bag has NOT deployed:
1. Check for visible signs of damage (dents, tears, deformation) of the center pillar on
the collision side.
2. If damaged—Remove the LH side curtain air bag module.
3. Check for visible signs of damaged (tears etc.) of the LH side curtain air bag mod-
ule.
4. Check harness and connectors for damage, and terminals for deformities.
5. If no damage is found, reinstall the LH side curtain air bag module with new fasten-
ers.
6. If damaged—REPLACE the LH side curtain air bag module with new fasteners.
RH side curtain air
bag moduleIf the RH side curtain
air bag has deployed:
REPLACE the RH
side curtain air bag
module. (Repair the
center pillar inner, etc.
before installing new
one if damaged.)If the RH side curtain air bag has NOT deployed:
1. Check for visible signs of damage (dents, tears, deformation) of the center pillar on
the collision side.
2. If damaged—Remove the RH side curtain air bag module.
3. Check for visible signs of damaged (tears etc.) of the RH side curtain air bag mod-
ule.
4. Check harness and connectors for damage, and terminals for deformities.
5. If no damage is found, reinstall the RH side curtain air bag module with new fasten-
ers.
6. If damaged—REPLACE the RH side curtain air bag module with new fasteners.
Front LH side air bag
moduleIf the front LH side air
bag has deployed:
REPLACE front LH
seatback assembly.If the front LH side air bag has NOT deployed:
1. Check for visible signs of damage (dents, tears, deformation) of the seat back on
the collision side.
2. Check harness and connectors for damage, and terminals for deformities.
3. If damaged—REPLACE the front LH seatback assembly.
Front RH side air bag
moduleIf the front RH side air
bag has deployed:
REPLACE front RH
seatback assembly.If the front RH side air bag has NOT deployed:
1. Check for visible signs of damage (dents, tears, deformation) of the seat back on
the collision side.
2. Check harness and connectors for damage, and terminals for deformities.
3. If damaged—REPLACE the front RH seatback assembly.
(LH or RH) side air
bag (satellite) sensor If any of the SRS
components have
deployed:
REPLACE the side
air bag (satellite) sen-
sor on the collision
side with new fasten-
ers. (Repair the cen-
ter pillar inner, etc.
before installing new
one if damaged.)If none of the SRS components have been activated:
1. Remove the side air bag (satellite) sensor on the collision side. Check harness
connectors for damage, terminals for deformities, and harness for binding.
2. Check for visible signs of damage (dents, cracks, deformation) of the side air bag
(satellite) sensor.
3. Install the side air bag (satellite) sensor to check fit.
4. If no damage is found, reinstall the side sir bag (satellite) sensor with new fasten-
ers.
5. If damaged—REPLACE the side air bag (satellite) sensor with new fasteners.
Diagnosis sensor unit If any of the SRS
components have
deployed:
REPLACE the diag-
nosis sensor unit with
new fasteners.If none of the SRS components have been activated:
1. Check case and bracket for dents, cracks or deformities.
2. Check connectors for damage, and terminals for deformities.
3. If no damage is found, reinstall the diagnosis sensor unit with new fasteners.
4. If damaged—REPLACE the diagnosis sensor unit with new fasteners.

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