NISSAN 350Z 2007 Z33 Supplemental Restraint System Repair Manual

DIAGNOSIS SENSOR UNIT
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SRS
Revision: 2006 November2007 350Z
DIAGNOSIS SENSOR UNITPFP:28556
Removal and InstallationNHS00010
REMOVAL
CAUTION:

Before servicing SRS, turn the ignition switch off, disconnect both battery cables and wait at least
3 minutes.

Do not use air tools or electric tools for servicing.
1. Disconnect each harness connector for the air bag module and seat belt pre-tensioner.
2. Remove center console. Refer to IP-11, "
Removal and Installation" .
3. Disconnect diagnosis sensor unit connector.
4. Remove fixing bolts from the diagnosis sensor unit.
CAUTION:

Do not use old bolts. Replace with new ones.

Check diagnosis sensor unit bracket to ensure it is free of deformities, dents, cracks or rust. If it
shows any visible signs of damage, replace with new one.

Replace diagnosis sensor unit if it has been dropped or sustained an impact.
INSTALLATION
Install in the reverse order of removal.
CAUTION:

Check the diagnosis sensor unit for proper installation.

After replacement of diagnosis sensor unit, perform self-diagnosis to make sure that no malfunc-
tion is detected. Refer to SRS-27, "
SRS Operation Check (USER MODE)" .
ECU DISCRIMINATED NO.
After replacing the diagnosis sensor unit, make sure that the diagnosis sensor unit identification is correct for
the vehicle as equipped.Hex bolt: 24.5 N·m (2.5 kg-m, 18 ft-lb)
Ground bolt: 6.9 N·m (0.7 kg-m, 61 in-lb)
PHIA0463E
Model Specification ECU DISCRIMINATED No.
CoupeModels with driver and passenger air bags and seat belt pre-tensioner FAE6
Models with driver and passenger air bags, seat belt pre-tensioner, side air bags and curtain
air bagsFAE4
RoadsterModels with driver and passenger air bags and seat belt pre-tensioner FAE7
Models with driver and passenger air bags, seat belt pre-tensioner and side air bags FAE5

SRS-52
OCCUPANT CLASSIFICATION SYSTEM CONTROL UNIT
Revision: 2006 November2007 350Z
OCCUPANT CLASSIFICATION SYSTEM CONTROL UNITPFP:98852
Removal and InstallationNHS000A7
The occupant classification system control unit, seat pressure sensor, and bladder are an integral part of the
front passenger seat cushion and are replaced as an assembly. Refer to SE-67, "
Removal and Installation" .

COLLISION DIAGNOSIS
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SRS
Revision: 2006 November2007 350Z
COLLISION DIAGNOSISPFP:00015
For Frontal CollisionNHS00011
To repair the SRS, perform the following steps.
When SRS (except the front side air bag and side curtain air bag modules) is activated in a collision:
1. Replace the diagnosis sensor unit.
2. Remove the air bag modules (except the front side air bag modules and side curtain air bag modules),
crash zone sensor assembly, bracket and seat belt pre-tensioner assemblies.
3. Check the SRS components using the table below:
–Replace any SRS components showing visible signs of damage (dents, cracks and deformation).
4. Install new air bag modules (except the front side air bag modules and side curtain air bag modules) crash
zone sensor assembly, bracket and seat belt pre-tensioner assemblies.
5. Perform self-diagnosis using CONSULT-IlI or “AIR BAG” warning lamp. Refer to SRS-27, "
SRS Operation
Check (USER MODE)" for details. Ensure entire SRS operates properly.
When SRS is not activated in a collision:
1. Check the SRS components using the table below:
–Replace any SRS components showing visible signs of damage (dents, cracks and deformation).
2. Perform self-diagnosis using CONSULT-IlI or “AIR BAG” warning lamp. Refer to SRS-27, "
SRS Operation
Check (USER MODE)" for details. Ensure entire SRS operates properly.
When only one front air bag module is activated in a collision:
1. Replace the following components:
–Diagnosis sensor unit
–Crash zone sensor
–Activated front air bag and seat belt pre-tensioner.
2. Check the other SRS components using the table below. (Refer to “SRS is NOT activated”.)
–Replace any SRS components showing visible signs of damage (dents, cracks and deformation).
3. Perform self-diagnosis using CONSULT-IlI or “AIR BAG” warning lamp. Refer to SRS-27, "
SRS Operation
Check (USER MODE)" for details. Ensure entire SRS operates properly.
Only one front air bag may inflate a crash, depending on the crash severity and whether the front occupants
are belted or unbelted. This does not indicate improper performance of the system. Perform self-diagnosis to
make sure the entire SRS operates properly.
SRS INSPECTION (FOR FRONTAL COLLISION)
Part SRS is activated SRS is NOT activated
Driver airbag
moduleIf the Driver airbag has deployed:
REPLACE.
Install with new fasteners.If the Driver air bag has NOT been activated:
[same text as in current manual]
Passenger front
airbag moduleIf the Passenger front airbag has deployed:
REPLACE.
Install with new fasteners.If the Passenger front air bag has NOT been activated:
[same text as in current manual]
Crash zone
sensorIf any of the front airbags or seat belt pre-
tensionsers have been activated:
REPLACE the crash zone sensor and bracket
with new fasteners. If the front airbags or seat belt pre-tensionsers have NOT
been activated:
[same text as in current manual]
Seat belt pre-ten-
sioner assembliesIf the driver or passenger Seat belt pre-ten-
sioner has been activated:
REPLACE the seat belt pre-tensioner
assemblies with new fasteners. If the pre-tensioners have NOT been activated:
[same text as in current manual]
Diagnosis sensor
unitIf any of the SRS components have been
activated:
REPLACE the Diagnosis sensor unit.
Install with new fasteners.If none of the SRS components have been activated:
[same text as in current manual]

SRS-54
COLLISION DIAGNOSIS
Revision: 2006 November2007 350Z
Steering wheel [same text as in current manual]
Spiral cable If the Driver airbag has deployed:
REPLACE the spiral cable.If the Driver airbag has not deployed:
[same text as in current manual]
Harness and con-
nectors1. 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 damaged section of harness. Do not repair, splice or modify any SRS harness.
Instrument panel 1. Visually check instrument panel for damage.
2. If no damage is found, reinstall the instrument panel.
3. If damaged—REPLACE the instrument panel with bolts. Part SRS is activated SRS is NOT activated

COLLISION DIAGNOSIS
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SRS
Revision: 2006 November2007 350Z
For Side CollisionNHS00012
WHEN THE SIDE AIR BAG IS ACTIVATED IN THE SIDE COLLISION:
1. Replace the following components:
–All parts of front seatback (including front seatback frame) with front side air bag module (on the side on
which front side air bag is activated)
–Curtain air bag module (on the side on which side curtain air bag is activated)
–Diagnosis sensor unit
–Satellite sensor (on the side on which side air bag and side curtain 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. Perform self-diagnosis using CONSULT-IlI or “AIR BAG” warning lamp. Refer to SRS-27, "
SRS Operation
Check (USER MODE)" . Ensure entire SRS operates properly.
WHEN SRS IS NOT ACTIVATED IN THE SIDE COLLISION:
1. 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).
2. Perform self-diagnosis using CONSULT-IlI or “AIR BAG” warning lamp. Refer to SRS-27, "
SRS Operation
Check (USER MODE)" . Ensure entire SRS operates properly.
SRS INSPECTION (FOR SIDE COLLISION)
PartFront side air bag and
side curtain air bag is
activatedFront side air bag and side curtain air bag is NOT activated
(LH or RH) side cur-
tain air bag module*REPLACE the side
curtain air bag mod-
ule.
(Repair the center pil-
lar inner, etc. before
installing new one if
damaged.)1. Check for visible signs of damage (dents, tears, deformation) of the center pillar on
the collision side.
2. If damaged— Remove the side curtain air bag module.
3. Check for visible signs of damaged (tears etc.) of the side curtain air bag module.
4. Check harness and connectors for damage, and terminals for deformities.
5. If no damage is found, reinstall the side curtain air bag module with new bolts.
6. If damaged—REPLACE the side curtain air bag module with new bolts.
Front (LH or RH) side
air bag moduleREPLACE all parts of
seatback with
deployed front side
air bag module.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 no damage is found, reinstall the front seatback assembly.
4. If damaged—REPLACE the front seatback assembly.
(LH or RH) side air
bag (Satellite) sensorREPLACE the side
air bag (Satellite) sen-
sor on the collision
side with new nuts.
(Repair the center pil-
lar inner, etc. before
installing new one if
damaged.)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 nuts.
5. If damaged—REPLACE the side air bag (Satellite) sensor with new nuts.
Diagnosis sensor unit REPLACE the diag-
nosis sensor unit with
the new bolts.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 bolts and ground
bolt.
4. If damaged—REPLACE the diagnosis sensor unit with new bolts and ground bolt.

SRS-56
COLLISION DIAGNOSIS
Revision: 2006 November2007 350Z
*: For coupeSeat belt pre-ten-
sioner assembly1. Check if the seat belt can be extended smoothly.
If the seat belt cannot be extended smoothly,
–Check for deformities of the center pillar inner.
–If the center pillar inner has no damage, REPLACE the seat belt pre-tensioner assembly.
2. Remove the seat belt pre-tensioner assembly on the collision side. Check harness cover and connectors
for damage, terminals for deformities, and harness for binding.
3. Check for visible signs of damage (dents, cracks, deformation) of the seat belt pre-tensioner assembly.
4. Check seat belt adjuster for damage.
5. If no damage is found, reinstall the seat belt pre-tensioner assembly.
6. If damaged—REPLACE the seat belt pre-tensioner assembly with new bolts.
Seat with front side
air bagREPLACE all parts of
front seatback
(including front seat-
back frame)1. Visually check the seat on the collision side.
2. Remove the seat on the collision side and check the following for damage and
deformities.
–Harness, connectors and terminals
–Frame and recliner (for front and rear seat), and also adjuster and slides (for front
seat)
3. If no damage is found, reinstall the seat.
4. If damaged—REPLACE the damaged seat parts using new bolts.
Center inner pillar 1. Check the center inner pillar on the collision side for damage (dents, cracks, deformation).
2. If damaged—REPAIR the center inner pillar.
Trim/headlining* 1. Check for visible signs of damage (dents, cracks, deformation) of the interior trim on the collision side.
2. If damaged—REPLACE the damaged trim parts. PartFront side air bag and
side curtain air bag is
activatedFront side air bag and side curtain air bag is NOT activated