battery NISSAN 350Z 2007 Z33 Supplemental Restraint System Workshop Manual

SRS-1
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
H RESTRAINTS
CONTENTS
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SECTION SRS
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SRS
Revision: 2006 November2007 350Z
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
PRECAUTIONS .......................................................... 3
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” .................................................................. 3
Precautions for SRS “AIR BAG” and “SEAT BELT
PRE-TENSIONER” Service ..................................... 3
Precautions for Battery Service ................................ 3
Occupant Classification System Precaution ............ 3
PREPARATION ........................................................... 4
Commercial Service Tools ........................................ 4
SUPPLEMENTAL RESTRAINT SYSTEM (SRS) ....... 5
SRS Configuration ................................................... 5
Front Seat Belt Pre-tensioner with Load Limiter ...... 6
Front Side Air Bag .................................................... 6
Side Curtain Air Bag/for Coupe ................................ 6
Warning Lamp .......................................................... 6
Occupant Classification System (OCS) ................... 7
Passenger Air Bag Status Condition ........................ 7
Component Parts of Occupant Classification Sys-
tem ........................................................................... 7
Passenger Seat belt Warning System ...................... 8
TROUBLE DIAGNOSIS .............................................. 9
Trouble Diagnosis Introduction ................................. 9
DIAGNOSIS FUNCTION ....................................... 9
HOW TO PERFORM TROUBLE DIAGNOSES
FOR QUICK AND ACCURATE REPAIR ............... 9
WORK FLOW ...................................................... 10
Component Parts Location ...................................... 11
Schematic .............................................................. 12
Wiring Diagram — SRS —/For Coupe ................... 13
Wiring Diagram — SRS —/For Roadster ............... 19
CONSULT-lll Function ............................................ 25
DIAGNOSIS MODE FOR CONSULT-LLL ........... 25
HOW TO CHANGE SELF-DIAGNOSIS MODE
WITH CONSULT-LII ............................................ 25
HOW TO ERASE SELF-DIAGNOSTIC
RESULTS ............................................................ 26
Self-Diagnosis Function (Without CONSULT-lll) .... 26
HOW TO CHANGE SELF-DIAGNOSTIC MODE WITHOUT CONSULT-LLL ................................... 26
HOW TO ERASE SELF-DIAGNOSTIC
RESULTS ............................................................ 26
SRS Operation Check (USER MODE) ................... 27
DIAGNOSTIC PROCEDURE .............................. 27
Trouble Diagnosis with CONSULT-IlI ...................... 29
DIAGNOSTIC PROCEDURE .............................. 29
Trouble Diagnosis without CONSULT-IlI ................. 33
DIAGNOSTIC PROCEDURE .............................. 33
WARNING LAMP FLASH CODE CHART ........... 33
Trouble Diagnosis: “AIR BAG” Warning Lamp Does
Not Turn OFF ......................................................... 37
DIAGNOSTIC PROCEDURE .............................. 37
Trouble Diagnosis: “AIR BAG” Warning Lamp Does
Not Turn ON ........................................................... 38
DIAGNOSTIC PROCEDURE .............................. 38
Trouble Diagnosis: Passenger Seat belt Warning
System .................................................................... 39
DRIVER AIR BAG MODULE .................................... 40
Removal and Installation ........................................ 40
REMOVAL ........................................................... 40
INSTALLATION ................................................... 41
SPIRAL CABLE ........................................................ 42
Removal and Installation ........................................ 42
REMOVAL ........................................................... 42
INSTALLATION ................................................... 43
FRONT PASSENGER AIR BAG MODULE .............. 44
Removal and Installation ........................................ 44
REMOVAL ........................................................... 44
INSTALLATION ................................................... 45
SIDE CURTAIN AIR BAG MODULE (FOR COUPE) ... 46
Removal and Installation ........................................ 46
REMOVAL ........................................................... 46
INSTALLATION ................................................... 47
CRASH ZONE SENSOR ........................................... 48
Removal and Installation ........................................ 48
REMOVAL ........................................................... 48
INSTALLATION ................................................... 48

PRECAUTIONS
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Revision: 2006 November2007 350Z
PRECAUTIONSPFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
NHS00008
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 per-
formed by an authorized NISSAN/INFINITI dealer.

Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal 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
harness connectors.
Precautions for SRS “AIR BAG” and “SEAT BELT PRE-TENSIONER” ServiceNHS00009

Do not use electrical test equipment to check SRS circuits unless instructed in this Service Manual.

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

Diagnosis sensor unit must always be installed with their arrow marks “⇐” pointing towards the front of the
vehicle for proper operation. Also check diagnosis sensor unit for cracks, deformations or rust before
installation and replace if required.

The spiral cable must be set to the neutral position since its rotations are limited. Do not attempt to turn
steering wheel or column, if steering gear was disconnected from the column shaft.

Handle air bag module carefully. Always put a driver air bag module with the pad side facing upward.

Conduct self-diagnosis to check entire SRS for proper function after replacing any components.

After an air bag deploymented, the front instrument panel assembly should be replaced if damaged.

Always replace instrument panel pad following front passenger air bag deployment.
Precautions for Battery ServiceNHS0000A
Before disconnecting the battery, lower both the driver and passenger windows. This will prevent any interfer-
ence between the window edge and the vehicle when the door is opened/closed. During normal operation, the
window slightly raises and lowers automatically to prevent any window to vehicle interference. The automatic
window function will not work with the battery disconnected.
Occupant Classification System PrecautionNHS000A0
Replace occupant classification system control unit and passenger front seat cushion as an assembly.

TROUBLE DIAGNOSIS
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Revision: 2006 November2007 350Z
TROUBLE DIAGNOSISPFP:00004
Trouble Diagnosis IntroductionNHS0000H
CAUTION:

Do not use electrical test equipment on any circuit related to the SRS unless instructed in this Ser-
vice Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or har-
ness connectors.

Do not repair, splice or modify the SRS wiring harness. If the harness is damaged, replace it with a
new one.

Keep ground portion clean.
DIAGNOSIS FUNCTION
The SRS self-diagnostic results can be read by using “AIR BAG” warning lamp and/or CONSULT-lll.
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-IlI 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
Make sure that the following parts are in good order.

Battery (Refer to SC-4, "How to Handle Battery" .)

Fuse (Refer to SRS-13, "Wiring Diagram — SRS —/For Coupe" or SRS-19, "Wiring Diagram — SRS —/
For Roadster" .)

System component-to-harness connections
User mode Diagnosis mode Display type
“AIR BAG” warning lamp X X ON-OFF operation
CONSULT-lII — X Monitoring

TROUBLE DIAGNOSIS
SRS-29
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Revision: 2006 November2007 350Z
Trouble Diagnosis with CONSULT-IlINHS0000P
DIAGNOSTIC PROCEDURE
DTC No. Index (“SELF-DIAG [CURRENT]” “SELF-DIAG [PAST]” or TROUBLE DIAG RECORD )
Diagnositic mode Description
SELF-DIAG RESULTThe self-diagnosis result is displayed. (SELF-DIAG [CURRENT], [PAST], [RECORRD]).
Refer to SRS-29, "
DTC No. Index (“SELF-DIAG [CURRENT]” “SELF-DIAG [PAST]” or
TROUBLE DIAG RECORD )" .
ECU DISCRIMINATED No. The parts number of diagnosis sensor unit is displayed.
Diagnostic item ExplanationRepair order
“Recheck SRS at each replacement”
NO DTC IS DETECTED. When malfunction is
indicated by the “AIR
BAG” warning lamp in
User mode.

Low battery voltage (Less than 9V) —

Self-diagnostic results “SELF-DIAG
[PAST]” (previously stored in the
memory) might not be erased after
repair.

Intermittent malfunction has been
detected in the past.

Go to SRS-25, "DIAGNOSIS MODE
FOR CONSULT-lll" .

No malfunction is detected. —
DRIVER AIRBAG MOD-
ULE
[OPEN]
[B1054]

Driver air bag module circuit is open (including the spiral
cable).1. Visually check the wiring harness
connection.
2. Replace the harness if it has visible
damage.
3. Replace driver air bag module.
4. Replace the spiral cable.
5. Replace the diagnosis sensor unit. DRIVER AIRBAG MOD-
ULE
[VB-SHORT]
[B1055]

Driver air bag module circuit is shorted to a power supply cir-
cuit (including the spiral cable).
DRIVER AIRBAG MOD-
ULE
[GND-SHORT]
[B1056]

Driver air bag module circuit is shorted to ground (including the
spiral cable).
DRIVER AIRBAG MOD-
ULE
[SHORT]
[B1057]

Driver air bag module circuit is shorted between lines.
ASSIST A/B MODULE
[VB-SHORT]
[B1070]

Front passenger air bag module circuit is shorted to a power
supply circuit.1. Visually check the wiring harness
connection.
2. Replace the harness if it has visible
damage.
3. Replace front passenger air bag
module.
4. Replace the diagnosis sensor unit. ASSIST A/B MODULE
[OPEN]
[B1071]

Front passenger air bag module circuit is open.
ASSIST A/B MODULE
[GND-SHORT]
[B1072]

Front passenger air bag module circuit is shorted to ground.
ASSIST A/B MODULE
[SHORT]
[B1073]

Front passenger air bag module circuit is shorted between
lines.
CRASH ZONE SEN
[UNIT FAIL]
[B1033]
[B1034]
CRASH ZONE SEN
[COMM FAIL]
[B1035]
CRASH ZONE SEN
[UNMATCH]
[B1036]

Crash zone sensor 1. Visually check the wiring harness
connection.
2. Replace the harness if it has visible
damage.
3. Replace the crash zone sensor.
4. Replace the diagnosis sensor unit.

SRS-40
DRIVER AIR BAG MODULE
Revision: 2006 November2007 350Z
DRIVER AIR BAG MODULEPFP:K8510
Removal and InstallationNHS0000T
REMOVAL
CAUTION:

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

Always work from the side of driver air bag module.

Do not use air tools or electric tools for servicing.
1. Remove the side lids (RH/LH).
2. Using Tamper resistant TORX bit (T30), remove the TORX bolts
(T30) at right and left.
3. Disconnect the steering wheel switch sub-harness connector.
4. Disconnect the air bag harness connector, and remove the
driver air bag module.
CAUTION:

For installing / removing driver air bag module connector,
insert thin screwdriver wrapped in tape into notch, lift
lock and remove connector.

Install connector with lock raised, and push lock into
connector.

After installing the connector, make sure that the lock is
pushed securely into it.
PHIA0715E
1. Driver air bag module 2. Side lid (RH/LH) 3. Steering wheel
4. TORX bolt (T30)
PHIA0714E
PHIA0308E

SRS-42
SPIRAL CABLE
Revision: 2006 November2007 350Z
SPIRAL CABLEPFP:25554
Removal and InstallationNHS0000U
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. Remove driver air bag module. Refer to SRS-40, "
Removal and Installation" .
2. Disconnect horn switch connector.
3. Set the steering wheel in the neutral position.
4. Remove steering wheel. Refer to PS-7, "
STEERING WHEEL" .
5. Remove combination meter assembly. Refer to DI-24, "
Removal and Installation for Combination Meter" .
6. Loosen the spiral cable fixing screws, and then remove the spiral cable.
CAUTION:

Do not disassemble spiral cable.

Do not apply lubricant to the spiral cable.
7. Remove the horn switch connector and then remove spiral cable
connector.
CAUTION:
Also, with the steering linkage disconnected the cable may
snap by turning the steering wheel beyond the limited num-
ber of turns.
1. Steering wheel 2. Driver air bag module connector 3. Spiral cable
4. Screw (Do not remove) 5. Wiper and washer switch 6. Screw
7. Sreering column assembly 8. Combination meter 9. Lighting and turn signal switch
PHIA1255E
SHIA0193E

SRS-44
FRONT PASSENGER AIR BAG MODULE
Revision: 2006 November2007 350Z
FRONT PASSENGER AIR BAG MODULEPFP:K8515
Removal and InstallationNHS0000V
REMOVAL
CAUTION:

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

Always work from the side of or under front passenger air bag module.

Do not use air tools or electric tools for servicing.
1. Remove cluster lid C. Refer to IP-14, "
(Q) Cluster Lid C" .
2. Remove instrument passenger panel lower and knee protector (RH). Refer to IP-13, "
(L) Instrument Pas-
senger Panel Lower" .
3. Disconnect passenger air bag module connector.
4. Remove hexagon bolt, and then remove instrument passenger
panel upper assembly.
5. Remove fixing nuts, and then remove front passenger air bag
module.
CAUTION:

Always place front passenger air bag module with caution label side facing upward.

Do not insert any foreign objects (screwdriver, etc.) into front passenger air bag module.

Do not disassemble front passenger air bag module.

Do not use old bolts after removal; replace with new bolts.

Replace front passenger air bag module if it has been
dropped or sustained an impact.

Do not expose the front passenger air bag module to tem-
peratures exceeding 90°C (194°F).

Do not allow oil, grease or water to come in contact with the
front passenger air bag module.

After front passenger air bag module inflates, the instru-
ment panel assembly should be replaced.Passenger air bag module connector : (1)
PHIA1247E
PHIA1248E
SBF814E

SRS-46
SIDE CURTAIN AIR BAG MODULE (FOR COUPE)
Revision: 2006 November2007 350Z
SIDE CURTAIN AIR BAG MODULE (FOR COUPE)PFP:985P0
Removal and InstallationNHS0000W
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. Remove headlining. Refer to EI-44, "
Removal and Installation (for Coupe Models)" .
2. Disconnect side curtain air bag connector.
3. Remove side curtain air bag module fixing bolts and clip.
4. Remove the side curtain air bag module.
CAUTION:

Always place the side curtain air bag module with the
warning label facing upward.

Do not disassemble side curtain air bag module.

Do not insert any foreign objects (screwdriver, etc.) into
air bag module connector.

Replace side curtain air bag module if it has been
dropped or sustained an impact.

Do not expose the air bag module to temperatures
exceeding 90°C (194°F).

Do not allow oil, grease or water to come in contact with
the side curtain air bag module.
PHIA0660E
1. Side curtain air bag module 2. Clip 3. Bolt
PHIA0171E
SBF814E

SRS-48
CRASH ZONE SENSOR
Revision: 2006 November2007 350Z
CRASH ZONE SENSORPFP:98531
Removal and InstallationNHS0000X
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. Remove crash zone sensor connector.
2. Remove crash zone sensor fixing nuts.
CAUTION:

Replace crash zone sensor if it has been dropped or sustained an impact.

Do not disassemble crash zone sensor.
INSTALLATION
Install in the reverse order of removal.
CAUTION:

Check crash zone sensor for proper installation.

After the work is complete, perform self-diagnosis to make sure that no malfunction is detected.
Refer to SRS-27, "
SRS Operation Check (USER MODE)" .
PHIA0172E

SIDE AIR BAG (SATELLITE) SENSOR
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Revision: 2006 November2007 350Z
SIDE AIR BAG (SATELLITE) SENSORPFP:98830
Removal and InstallationNHS0000Y
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. Remove seat belt pre-tensioner. Refer to SB-4, "
Removal and Installation of Seat Belt (Coupe)" or SB-6,
"Removal and Installation of Seat Belt (Roadster)" .
2. Remove side air bag (Satellite) sensor fixing nuts.
3. Remove the side air bag (Satellite) sensor connector.
CAUTION:

Do not use old nuts; replace with new ones.

Check side air bag (Satellite) sensor to ensure it is free of deformities, dents, cracks or rust. If it
shows any visible signs of damage, replace it with new one.

Do not attempt to disassemble side air bag (Satellite) sensor.

Replace side air bag (Satellite) sensor if it has been dropped or sustained an impact.
INSTALLATION
Install in the reverse order of removal.
CAUTION:

Check side air bag (Satellite) sensor for proper installation.

After replacement of side air bag (Satellite) sensor, perform self-diagnosis to make sure that no
malfunction is detected. Refer to SRS-27, "
SRS Operation Check (USER MODE)" .
PHIA0176E