ignition NISSAN 350Z 2007 Z33 Supplemental Restraint System Workshop Manual

PRECAUTIONS
SRS-3
C
D
E
F
G
I
J
K
L
MA
B
SRS
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.

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
SRS-5
C
D
E
F
G
I
J
K
L
MA
B
SRS
Revision: 2006 November2007 350Z
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)PFP:28556
SRS ConfigurationNHS0000D
The air bag deploys if the diagnosis sensor unit activates while the ignition switch is in the ON or START posi-
tion.
The collision modes for which supplemental restraint systems are activated are different among the SRS sys-
tems. For example, the driver air bag module and front passenger air bag module are activated in a frontal col-
lision but not in a side collision.
SRS configurations which are activated for some collision modes are as follows;
*: For Coupe
PHIA1120E
SRS configuration Frontal collision Left side collision Right side collision
Driver air bag module×——
Front passenger air bag module×——
Front LH seat belt pre-tensioner×——
Front RH seat belt pre-tensioner×——
Front LH side air bag module —×—
Front RH side air bag module — —×
LH side curtain air bag module* —×—
RH side curtain air bag module* — —×

SRS-26
TROUBLE DIAGNOSIS
Revision: 2006 November2007 350Z
HOW TO ERASE SELF-DIAGNOSTIC RESULTS

“SELF-DIAG [CURRENT]”
A current self-diagnostic result is displayed on the CONSULT-lll screen in real time.
After the malfunction is repaired completely, no malfunction is detected on “SELF-DIAG [CURRENT]”.

“SELF-DIAG [PAST]”
Return to the “SELF-DIAG [CURRENT]” CONSULT-lll screen by touching “BACK” key of CONSULT-lll and
select “SELF-DIAG [CURRENT]” in SELECT DIAG MODE. Touch “ERASE” in “SELF-DIAG [CURRENT]”
mode.
NOTE:
If the memory of the malfunction in “SELF-DIAG [PAST]” is not erased, the User mode shows the system
malfunction by the operation of the warning lamp even if the malfunction is repaired completely.

“TROUBLE DIAG RECORD”
The memory of “TROUBLE DIAG RECORD” cannot be erased.
Self-Diagnosis Function (Without CONSULT-lll)NHS0000N

The reading of these results is accomplished “User mode” and “Diagnosis mode”.

After a malfunction is repaired, turn ignition switch ON. Diagnosis mode returns to the User mode. At that
time, the self-diagnostic result is cleared.
HOW TO CHANGE SELF-DIAGNOSTIC MODE WITHOUT CONSULT-LLL
HOW TO ERASE SELF-DIAGNOSTIC RESULTS
After a malfunction is repaired, turn the ignition switch OFF for at least one second, then back ON. Diagnosis
mode returns to the User mode. At that time, the self-diagnostic results are cleared.
PHIA0709E

TROUBLE DIAGNOSIS
SRS-27
C
D
E
F
G
I
J
K
L
MA
B
SRS
Revision: 2006 November2007 350Z
SRS Operation Check (USER MODE) NHS0000O
DIAGNOSTIC PROCEDURE
Checking Air Bag Operation by Using “AIR BAG” Warning Lamp—User Mode
1. Turn ignition switch from OFF to ON, and make sure that the air bag warning lamp blinks.
2. Compare the SRS air bag warning lamp blinking pattern with the
examples.
BF-1845D

TROUBLE DIAGNOSIS
SRS-33
C
D
E
F
G
I
J
K
L
MA
B
SRS
Revision: 2006 November2007 350Z
Trouble Diagnosis without CONSULT-IlINHS0000Q
DIAGNOSTIC PROCEDURE
Inspecting SRS Malfunctioning Parts by Using “AIR BAG” Warning Lamp — Diagnosis Mode
NOTE:
SRS will not enter Diagnosis mode if no malfunction is detected in User mode.
1. Turn ignition switch ON.
2. After “AIR BAG” warning lamp lights for 7 seconds, turn ignition switch OFF within 1 second.
3. Wait more than 3 seconds.
4. Repeat the steps 1 to 3 two times.
5. Turn ignition switch ON.
SRS is now in Diagnosis mode.
“AIR BAG” warning lamp operates in Diagnosis mode as follows:
WARNING LAMP FLASH CODE CHART
PHIA0532E
PHIA1233E
SHIA0028E

TROUBLE DIAGNOSIS
SRS-37
C
D
E
F
G
I
J
K
L
MA
B
SRS
Revision: 2006 November2007 350Z
Trouble Diagnosis: “AIR BAG” Warning Lamp Does Not Turn OFFNHS0000R
DIAGNOSTIC PROCEDURE
1. CHECK THE DEPLOYMENT OF AIR BAG MODULE
Is air bag module deployed?
YES or NO
YES >> Refer to SRS-53, "COLLISION DIAGNOSIS" .
NO >> GO TO 2.
2. CHECK THE AIR BAG FUSE
Check 10A fuse [No.13, located in fuse block (J/B)].
Refer to PG-15, "
Fuse" .
OK or NG
OK >> GO TO 4.
NG >> GO TO 3.
3. CHECK AIR BAG FUSE AGAIN
Replace “AIR BAG” fuse and turn ignition switch ON.
Does the
“AIR BAG” fuse blow again?
YES >> Repair or replace main harness.
NO >>INSPECTION END
4. CHECK DIAGNOSIS SENSOR UNIT
With CONSULT-IlI
Is “AIR BAG” displayed on CONSULT-IlI?
YES or NO
YES >> GO TO 5.
NO >> Visually check the wiring harness connection of diagnosis sensor unit. If the harness connection
check result is OK, replace diagnosis sensor unit.
5. CHECK HARNESS CONNECTION
Is harness connection between warning lamp and diagnosis sensor unit OK?
OK or NG
OK >> Replace diagnosis sensor unit.
NG >> Connect “AIR BAG” warning lamp and diagnosis sensor unit connector properly. If “AIR BAG”
warning lamp still does not go off, replace harness.

SRS-38
TROUBLE DIAGNOSIS
Revision: 2006 November2007 350Z
Trouble Diagnosis: “AIR BAG” Warning Lamp Does Not Turn ONNHS0000S
DIAGNOSTIC PROCEDURE
1. CHECK “METER” FUSE
Check 10A fuse [No.14, located in fuse block (J/B)].
Refer to PG-15, "
Fuse" .
OK or NG
OK >> GO TO 3.
NG >> GO TO 2.
2. CHECK “METER” FUSE AGAIN
Replace 10A fuse [No.14, located in fuse block (J/B)] and turn ignition switch ON.
Does the meter fuse blow again?
YES >> Repair or replace the related harness.
NO >>INSPECTION END
3. CHECK HARNESS CONNECTION BETWEEN DIAGNOSIS SENSOR UNIT AND COMBINATION
METER
Disconnect diagnosis sensor unit connector and turn ignition switch ON.
Does “AIR BAG” warning lamp turn ON?
YES or NO
YES >> Replace diagnosis sensor unit.
NO >> Replace combination meter assembly.

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