2007 INFINITI FX35 ECU

SRS-2Revision: 2006 July 2007 FX35/FX45
SIDE AIR BAG (SATELLITE) SENSOR ................
... 51
Removal and Installation ..................................... ... 51
REMOVAL ........................................................ ... 51
INSTALLATION ................................................. ... 51
FRONT SEAT BELT PRE-TENSIONER ................ ... 52
Removal and Installation ..................................... ... 52
DIAGNOSIS SENSOR UNIT .................................. ... 53
Removal and Installation ..................................... ... 53
REMOVAL ........................................................ ... 53
INSTALLATION ................................................. ... 53
ECU DISCRIMINATED NO. .............................. ... 53
OCCUPANT CLASSIFICATION SYSTEM CON- TROL UNIT .............................................................
... 54
Removal and Installation ...................................... ... 54
COLLISION DIAGNOSIS ....................................... ... 55
For Frontal Collision ............................................. ... 55
SRS INSPECTION (FOR FRONTAL COLLI-
SION) ................................................................ ... 55
For Side Collision ................................................. ... 57
WHEN THE SIDE AIR BAG IS ACTIVATED IN
THE SIDE COLLISION: .................................... ... 57
WHEN SRS IS NOT ACTIVATED IN THE SIDE
COLLISION: ...................................................... ... 57
SRS INSPECTION (FOR SIDE COLLISION) ... ... 57

SRS-6
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
Revision: 2006 July 2007 FX35/FX45
Front Seat Belt Pre-Tensioner with Load LimiterNHS00077
The seat belt pre-tensioner system with load limiter is installed for
both the driver's seat and the front passenger's seat. It operates
simultaneously with the SRS air bag system in the event of a frontal
collision 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 BagNHS00078
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 BagNHS00079
The side curtain air bags have the labels as shown.
SRS444
SHIA0170E
BF-2006D

SRS-18
TROUBLE DIAGNOSIS
Revision: 2006 July 2007 FX35/FX45
CONSULT-II FunctionNHS0007E
DIAGNOSIS MODE FOR CONSULT-II

“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-II screen in real time. This refers to a malfunctioning part requiring
repairs.

“SELF-DIAG [PAST]”
Diagnosis results previously stored in the memory are displayed on the CONSULT-II screen. The stored
results are not erased until memory erasing is executed.

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

“ECU DISCRIMINATED NO.”
The diagnosis sensor unit for each vehicle model is assigned
with its own, individual classification number. This number will
be displayed on the CONSULT-II 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-II screen.
After repair, make sure the discriminated number of diagnosis
sensor unit installed to vehicle are same. Refer to SRS-53,
"ECU DISCRIMINATED NO." .
HOW TO CHANGE SELF-DIAGNOSIS MODE WITH CONSULT-II
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-II until “SELECT SYSTEM”
appears, then diagnosis mode automatically changes to User mode.
PHIA0218E
SRS803
SRS804

SRS-42
DRIVER AIR BAG MODULE
Revision: 2006 July 2007 FX35/FX45
DRIVER AIR BAG MODULEPFP:K8510
Removal and InstallationNHS0007L
REMOVAL
CAUTION:

Before servicing SRS, turn 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.
2. Remove the right and left side TORX bolts (T30).
3. Lift up the driver air bag module.
4. Disconnect the air bag harness connector, and remove the driver air bag module.
NOTE:

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 connec-
tor.

After installing the connector, make sure that the lock is
pushed securely into it.
PHIA0685E
1. Driver air bag module 2. Steering wheel 3. TORX bolt T30 (LH/RH)
4. Side lid (LH/RH)
PHIA0714E
PHIA0308E

DRIVER AIR BAG MODULE SRS-43
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SRS
Revision: 2006 July 2007 FX35/FX45
CAUTION:

Always place driver air bag module with pad side facing
upward.

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

Do not disassemble driver air bag module.

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

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

Replace driver air bag module if it has been dropped or sus-
tained an impact.

Do not allow oil, grease or water to come in contact with the
driver air bag module.
INSTALLATION
Install in the reverse order of removal.
CAUTION:

Fix the air bag module harness (shown as A in the figure) to
the harness fixing hook (shown as B in the figure).

Be careful not to damage the harness while installing.

Tighten the special bolts after exactly adjusting the centers of fixing holes on the air bag module
side and the steering wheel side. If the holes are misaligned, the bolt threads are damaged and the
module is not installed securely.

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

In case that malfunction is detected by the air bag warning lamp, reset by the self-diagnosis func-
tion and delete the memory by CONSOULT–II.

In case that malunction is still detected after the above operation, peform self-diagnosis to repair
malfunctions. Refer to Refer to SRS-20, "
SRS Operation Check" .
PHIA0320E
SBF814E
PHIA0885J

SPIRAL CABLE SRS-45
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SRS
Revision: 2006 July 2007 FX35/FX45
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 half 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 −II.

In case that malfunction is still detected after the above
operation, perform self-diagnosis to repair malfunctions.
Refer to SRS-20, "
SRS Operation Check" .
PHIA0887J

SRS-48
SIDE CURTAIN AIR BAG MODULE
Revision: 2006 July 2007 FX35/FX45
SIDE CURTAIN AIR BAG MODULEPFP:985P0
Removal and InstallationNHS0007O
REMOVAL
CAUTION:

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

Always work from the side of the side curtain air bag module.

Do not use air tools or electric tools for servicing.
1. Remove headlining. Refer to EI-43, "
Removal and Installation" .
2. Disconnect side curtain air bag connector. NOTE:

For installing / removing side curtain air bag module connec-
tor, insert thin screwdriver wrapped in tape into notch, lift lock
and remove connector.

Install connector with lock raised, and push lock into connec-
tor.

After installing the connector, make sure that the lock is
pushed securely into it.
3. Remove side curtain air bag module fixing bolts, and then remove the side curtain air bag module.
CAUTION:

Always place the side curtain air bag module with the warn-
ing label facing upward.

Do not disassemble side curtain air bag module.

Do not insert any foreign objects (screwdriver, etc.) into air
bag module connector.
1. Side curtain air bag Inflator 2. Side curtain air bag 3. Bolt
4. Assist grip bracket 5. Bolt (There is no torque control)
PHIA0656E
PHIA0953J
PHIA0317E

DIAGNOSIS SENSOR UNIT SRS-53
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SRS
Revision: 2006 July 2007 FX35/FX45
DIAGNOSIS SENSOR UNITPFP:28556
Removal and InstallationNHS0007S
REMOVAL
CAUTION:

Before servicing SRS, turn 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 special bolts (T50) 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
things of damage, replace with new one.

Replace diagnosis sensor unit if it has been dropped or
sustained an impact.

Replace the diagnosis sensor unit of deployed SRS air bag
and deployed SRS front seat belt pre-tensioner.
INSTALLATION
Install in the reverse order of removal.
CAUTION:

Be careful not to damage the diagnosis sensor harness.

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

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

In case that malfunction is still detected after the above operation, perform self-diagnosis to repair
malfunctions. Refer to SRS-20, "
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.
PHIA0315E
Specification ECU DISCRIMINATED No.
Models with driver and passenger air bags, seat belt pre-tensioner, side air bags and curtain air bags FB04