ECU NISSAN 350Z 2007 Z33 Supplemental Restraint System Workshop Manual

SRS-2Revision: 2006 November2007 350Z SIDE AIR BAG (SATELLITE) SENSOR ................... 49
Removal and Installation ........................................ 49
REMOVAL ........................................................... 49
INSTALLATION .................................................... 49
FRONT SEAT BELT PRE-TENSIONER ................... 50
Removal and Installation ........................................ 50
DIAGNOSIS SENSOR UNIT ..................................... 51
Removal and Installation ........................................ 51
REMOVAL ........................................................... 51
INSTALLATION .................................................... 51
ECU DISCRIMINATED NO. ................................. 51
OCCUPANT CLASSIFICATION SYSTEM CON-TROL UNIT ................................................................ 52
Removal and Installation ......................................... 52
COLLISION DIAGNOSIS .......................................... 53
For Frontal Collision ................................................ 53
SRS INSPECTION (FOR FRONTAL COLLI-
SION) ................................................................... 53
For Side Collision .................................................... 55
WHEN THE SIDE AIR BAG IS ACTIVATED IN
THE SIDE COLLISION: ....................................... 55
WHEN SRS IS NOT ACTIVATED IN THE SIDE
COLLISION: ......................................................... 55
SRS INSPECTION (FOR SIDE COLLISION) ...... 55

SRS-6
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
Revision: 2006 November2007 350Z
Front Seat Belt Pre-tensioner with Load LimiterNHS0000E
The seat belt pre-tensioner system with load limiter is installed for
both the driver's seat and the front passenger seat. It operates simul-
taneously with the SRS air bag system in the event of a frontal colli-
sion with an impact exceeding a specified level.
When the frontal collision with an impact exceeding a specified level
occurs, seat belt slack resulting from clothing or other factors is
immediately taken up by the pre-tensioner. Vehicle passengers are
securely restrained.
When passengers in a vehicle are thrown forward in a collision and
the restraining force of the seat belt exceeds a specified level, the
load limiter permits the specified extension of the seat belt by the
twisting of the ELR shaft, and a relaxation of the chest-area seat belt
web tension while maintaining force.
Front Side Air BagNHS0000F
Front side air bag is built-in type.
The front seatbacks with built-in type side air bag have the labels as
shown.
Side Curtain Air Bag/for CoupeNHS0000G
The side curtain air bags have the labels as shown.
Warning Lamp NHS000A6
SRS444
PHIA0158E
PHIA0159E
Air bag warning lamp : (1)
Seat belt warning lamp: (2)
PHIA1358E

TROUBLE DIAGNOSIS
SRS-25
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SRS
Revision: 2006 November2007 350Z
CONSULT-lll FunctionNHS0000M
DIAGNOSIS MODE FOR CONSULT-LLL

“SELF-DIAG [CURRENT]”
A current self-diagnostic results (also indicated by the number of warning lamp flashes in the Diagnosis
mode) is displayed on the CONSULT-lll screen in real time. This refers to a malfunctioning part requiring
repairs.

“SELF-DIAG [PAST]”
Self-diagnostic results previously stored in the memory are displayed on the CONSULT-lll screen. The
stored results are not erased until memory erasing is performed.

“TROUBLE DIAG RECORD”
With TROUBLE DIAG RECORD, diagnostic results previously erased by a reset operation can be dis-
played on the CONSULT-lll screen.

“ECU DISCRIMINATED NO.”
The diagnosis sensor unit for each vehicle model is assigned with its own, individual classification num-
ber. This number will be displayed on the CONSULT-lll screen, as shown. When replacing the diagnosis
sensor unit, refer to the part number for the compatibility. After installation, replacement with a correct unit
can be checked by confirming this classification number on the CONSULT-lll screen.
After repair, make sure the discriminated number of diagnosis sensor unit installed to vehicle are same.
Refer to SRS-51, "
ECU DISCRIMINATED NO." .
HOW TO CHANGE SELF-DIAGNOSIS MODE WITH CONSULT-LII
From User Mode to Diagnosis Mode
After selecting “AIR BAG” on the “SELECT SYSTEM” screen, User mode automatically changes to Diagnosis
mode.
From Diagnosis Mode to User Mode
To return to User mode from Diagnosis mode, touch “BACK” key of CONSULT-lll until “SELECT SYSTEM”
appears, then diagnosis mode automatically changes to User mode.

TROUBLE DIAGNOSIS
SRS-29
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SRS
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

SPIRAL CABLE
SRS-43
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Revision: 2006 November2007 350Z
INSTALLATION
Install in the reverse order of removal.
CAUTION:

The spiral cable may snap by steering operation if the cable
is installed in an improper position.

The neutral position is set as follows.
Turn quietly the spiral cable clockwise to the end position.
Then turn it counterclockwise (about 2 and harf turns) and
stop turning at the point on which the stopper insertion
holes are in the same position.
The service part is installed in the neutral position by the
stopper and can be set without adjusting after the stopper
is removed.

Do not turn the spiral cable rashly and also beyond the limit
number of turns. (These will cause cable snap.)

Adjust the spiral cable locating pin (showed as A inthe fig-
ure) to the steering wheel locating pin hole (showed as C in
the figuer).

Secure the air bag harness with the harness fixing hook.

After the work is completed, make sure no system malfunc-
tion is detected by air bag warning lamp.

In case that malfunction is detected by the air bag warning
lamp, reset by the self-diagnosis function and delete the
memory by CONSULT−IlI.

In case that malfunction is still detected after the above
operation, perform self-diagnosis to repair malfunctions.
Refer to Refer to SRS-27, "
SRS Operation Check (USER MODE)" .
PHIA0887J

DIAGNOSIS SENSOR UNIT
SRS-51
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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