belt INFINITI FX35 2008 Service Manual

TROUBLE DIAGNOSISSRS-27
< SERVICE INFORMATION >
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PRE-TEN FRONT LH
[OPEN]
[B1086]  Front LH pre-tensioner circuit is open. 1. Visually check the wiring harness
connections.
2. Replace the harness if it has visi- ble damage.
3. Replace the front LH seat belt.
4. Replace the diagnosis sensor unit.
5. Replace the related harness.
PRE-TEN FRONT LH
[VB-SHORT]
[B1087]
 Front LH pre-tensioner circuit is shorted to a power supply cir-
cuit.
PRE-TEN FRONT LH
[GND-SHORT]
[B1088]  Front LH pre-tensioner circuit is shorted to ground.
PRE-TEN FRONT LH
[SHORT]
[B1089]  Front LH pre-tensioner circuit is shorted between lines.
DIAGNOSIS SENSOR
UNIT (CONTROL UNIT)
[ B 11 0 6 - B 1111 ]  Diagnosis sensor is out of order.  Replace diagnosis sensor unit
(ACU).
SATELLITE SENS RH
[UNIT FAIL]
[ B 111 3 ] [ B 111 4 ]
SATELLITE SENS RH
[COMM FAIL]
[ B 111 5 ]  RH side air bag (Satellite) sensor 1. Visually check the wiring harness
connection.
2. Replace the harness if it has visi-
ble damage.
3. Replace RH side air bag (Satel- lite) sensor.
4. Replace diagnosis sensor unit (ACU).
SATELLITE SENS LH
[UNIT FAIL]
[ B 111 8 ] [ B 111 9 ]
SATELLITE SENS LH
[COMM FAIL]
[B1120]  LH side air bag (Satellite) sensor 1. Visually check the wiring harness
connection.
2. Replace the harness if it has visi- ble damage.
3. Replace LH side air bag (Satel-
lite) sensor.
4. Replace diagnosis sensor unit (ACU).
DIAGNOSIS SENSOR
UNIT (CONTROL UNIT)
[ B 11 2 2 - B 11 2 7 ]  Diagnosis sensor is out of order.  Replace diagnosis sensor unit
(ACU).
SIDE MODULE RH
[OPEN]
[B1129]  Front RH side air bag module circuit is open. 1. Visually check the wiring harness
connection.
2. Replace the harness if it has visi- ble damage.
3. Replace front RH side air bag module.
4. Replace diagnosis sensor unit (ACU).
SIDE MODULE RH
[VB-SHORT]
[B1130]
 Front RH side air bag module circuit is shorted to a power supply
circuit.
SIDE MODULE RH
[GND-SHORT]
[B1131]  Front RH side air bag module circuit is shorted to ground.
SIDE MODULE RH
[SHORT]
[B1132]  Front RH side air bag module circuit is shorted between lines.
Diagnostic item Explanation
Repair order
“Recheck SRS at each replacement”
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SRS-28
< SERVICE INFORMATION >
TROUBLE DIAGNOSIS
NOTE:
Follow the procedures in numerical order when repairing malfunctioning parts. Confirm whether malfunction is
eliminated using air bag warning lamp or CONSULT-III eac h time repair is finished. If malfunction is still
observed, proceed to the next step. When malfunction is eliminated, further repair work is not required.
Trouble Diagnosis without CONSULT-IIIINFOID:0000000001524169
DIAGNOSTIC PROCEDURE
SIDE MODULE LH
[OPEN]
[B1134] Front LH side air bag module circuit is open. 1. Visually check the wiring harness
connection.
2. Replace the harness if it has visi- ble damage.
3. Replace front LH side air bag module.
4. Replace diagnosis sensor unit
(ACU).
SIDE MODULE LH
[VB-SHORT]
[B1135]
 Front LH side air bag module circuit is shorted to a power supply
circuit.
SIDE MODULE LH
[GND-SHORT]
[B1136]  Front LH side air bag module circuit is shorted to ground.
SIDE MODULE LH
[SHORT]
[B1137]  Front LH side air bag module circuit is shorted between lines.
DIAGNOSIS SENSOR
UNIT (CONTROL UNIT)
[ B 11 3 8 - B 11 4 3 ]  Diagnosis sensor is out of order.  Replace diagnosis sensor unit
(ACU).
CURTAIN MODULE RH
[OPEN]
[B1145]  RH side curtain air bag module circuit is open. 1. Visually check the wiring harness
connection.
2. Replace the harness if it has visi-
ble damage.
3. Replace RH side curtain air bag module.
4. Replace diagnosis sensor unit (ACU).
CURTAIN MODULE RH
[VB-SHORT]
[B1146]
 RH side curtain air bag module circuit is shorted to a power sup-
ply circuit.
CURTAIN MODULE RH
[GND-SHORT]
[B1147]  RH side curtain air bag module circuit is shorted to ground.
CURTAIN MODULE RH
[SHORT]
[B1148]  RH side curtain air bag module circuit is shorted between lines.
CURTAIN MODULE LH
[OPEN]
[B1150]  LH side curtain air bag module circuit is open. 1. Visually check the wiring harness
connection.
2. Replace the harness if it has visi- ble damage.
3. Replace LH side curtain air bag module.
4. Replace diagnosis sensor unit
(ACU).
CURTAIN MODULE LH
[VB-SHORT]
[B1151]
 LH side curtain air bag module circuit is shorted to a power sup-
ply circuit.
CURTAIN MODULE LH
[GND-SHORT]
[B1152]  LH side curtain air bag module circuit is shorted to ground.
CURTAIN MODULE LH
[SHORT]
[B1153]  LH side curtain air bag module circuit is shorted between lines.
DIAGNOSIS SENSOR
UNIT (CONTROL UNIT)
[B1202-B1207]  Diagnosis sensor is out of order.  Replace diagnosis sensor unit.
FRONTAL COLLISION-
DETECTION
[B1209]  Seat belt pre-tensioner and front air bag are deployed.  Go to
SRS-47, "
For Frontal Colli-
sion".
SIDE COLLISION DE-
TECTION
[B1210]  Side and curtain air bag is deployed.  Go to
SRS-48, "
For Side Collision".
Diagnostic item Explanation
Repair order
“Recheck SRS at each replacement”
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TROUBLE DIAGNOSISSRS-33
< SERVICE INFORMATION >
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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 DIAGNO SIS SENSOR UNIT AND COMBINATION METER
Disconnect diagnosis sensor unit connec tor and turn ignition switch ON.
Does AIR BAG warning lamp turn ON?
YES >> Replace diagnosis sensor unit.
NO >> Replace combination meter assembly.
Passenger Seatbelt Warning System (Seatbelt reminder).
1.CHECK THE SYSTEM 1
Check seatbelt warning lamp function.
Seatbelt warning lamp turns ON in the following conditions.
 Driver seatbelt is fastened.
 Occupant is on passenger seat.
 Passenger seatbelt is not fasten.
OK or NG
OK >> GO TO 2.
NG >> Check the followings.  Harness between air bag diagnosis sensor unit and combination meter.
 Seatbelt buckle switch (passenger side) circuit.
 Seatbelt buckle switch (passenger side).If these are OK, replace air bag diagnosis sensor unit.
2.CHECK THE SYSTEM 2
Check seatbelt warning lamp function.
Seatbelt warning lamp turns OFF in the following conditions.
 Driver seatbelt is fastened.
 Occupant is on passenger seat.
 Passenger seatbelt is fastened.
OK or NG
OK >> System is OK.
NG >> Check the followings.  Seatbelt buckle switch (passenger side) circuit.
 Seatbelt buckle switch (passenger side).
If these are OK, replace air bag diagnosis sensor unit.
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SIDE AIR BAG (SATELLITE) SENSOR
SRS-43
< SERVICE INFORMATION >
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SIDE AIR BAG (S ATELLITE) SENSOR
Removal and InstallationINFOID:0000000001327769
WARNING:
 Before servicing SRS, turn igniti on switch OFF, disconnect both ba ttery cables and wait at least 3
minutes.
 Do not use air tools or el ectric tools for servicing.
REMOVAL
1. Remove seat belt pre-tensioner. Refer to SB-3, "Removal and Installation of Front Seat Belt".
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) senso r to ensure it is free of deformities, dents, cracks or rust. If it
shows any visible signs of da mage, replace it with new one.
 Do not disassemble side ai r bag (Satellite) sensor.
 Replace side air bag (Satellite) sensor if it has been dropped or sustained an impact.
 Replace the satellite sensor of de ployed SRS front side air bag and deployed SRS side curtain air
bag.
INSTALLATION
Install in the reverse order of removal.
CAUTION:
 Be careful not to damage the satellite 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 ba g warning lamp, reset by the self-diagnosis function
and delete the memory by CONSULT −III.
 In case that malfunction is still detected after th e above operation, perform self-diagnosis to repair
malfunctions. Refer to SRS-23, "
SRS Operation Check".
PHIA0314E
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SRS-44
< SERVICE INFORMATION >
DIAGNOSIS SENSOR UNIT
DIAGNOSIS SENSOR UNIT
Removal and InstallationINFOID:0000000001327771
WARNING:
 Before servicing SRS, turn ignition switch OFF, disconnect both ba ttery cables and wait at least 3
minutes.
 Do not use air tools or el ectric tools for servicing.
REMOVAL
1. Disconnect each harness connector for the ai r 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 TORX bolts from the diagnosis sensor unit.
CAUTION:
 Do not use old TORX 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-ten-
sioner.
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 ba g warning lamp, reset by the self-diagnosis function
and delete the memory by CONSULT −III.
 In case that malfunction is still de tected after the above operation, perform self-diagnosis to repair
malfunctions. Refer to SRS-23, "
SRS Operation Check".
ECU DISCRIMINATED NO.
After replacing the diagnosis sensor unit, confirm that t he 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
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FRONT SEAT BELT PRE-TENSIONERSRS-45
< SERVICE INFORMATION >
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FRONT SEAT BELT PRE-TENSIONER
Removal and InstallationINFOID:0000000001327770
For removal and installation procedures, refer to SB-3, "Removal and Installation of Front Seat Belt".
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COLLISION DIAGNOSISSRS-47
< SERVICE INFORMATION >
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COLLISION DIAGNOSIS
For Frontal CollisionINFOID:0000000001327773
To repair the SRS, perform the following steps.
When SRS (except the front side air bag and sidecurt ain 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 modulesand side curtain air bag modules),
crash zone sensor assembly, bracket andseat 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. Conduct self-diagnosis using CONSULT-III or “AIR BAG”warning lamp. Refer to SRS-23, "
SRS Operation
Check" for details. Ensure entire SRS operates properly.
When SRS is not acti vated 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. Conduct self-diagnosis using CONSULT-III or “AIR BAG” warning lamp. Refer to SRS-23, "
SRS Operation
Check" for details. Ensure entire SRS operates properly.
When only one front air bag modu le 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. Conduct self-diagnosis using CONSULT-III or “AIR BAG” warning lamp. Refer to SRS-23, "
SRS Operation
Check" for details. Ensure entire SRS operates properly.
Only one front air bag may inflate a crash, depending on t he 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
module If 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 module If 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
sensor If 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 assemblies If the driver or passenger Seat belt pre-tension-
er 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
unit If 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]
Steering wheel [same text as in current manual]
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COLLISION DIAGNOSISSRS-49
< SERVICE INFORMATION >
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LH or RH side air bag
(Satellite) sensor REPLACE the side air
bag (Satellite) sensor
on the collision side
with new nuts.
(Repair the center pil-
lar inner, etc. before
installing new one if
damaged.)1. Remove the LH or RH side air bag (Satellite) sensor on the collision side. Check
harness connectors for damage, terminals for deformities, and harness for bind-
ing.
2. Check for visible signs of damage (dents, cracks, deformation) of the LH or RH side air bag (Satellite) sensor.
3. Install the LH or RH side air bag (Satellite) sensor to check fit.
4. If no damage is found, reinstall the LH or RH side sir bag (Satellite) sensor with
new nuts.
5. If damaged—REPLACE the LH or RH 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 withnew bolts and
ground bolt.
4. If damaged—REPLACE the diagnosis sensor unit with new boltsand ground bolt.
Seat belt pre-tension-
er assembly 1. 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 beltpre-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 assemblywith new bolts.
Seat with front side air
bag REPLACE all parts of
front seatback (includ-
ing front seatback
frame)1. Visually check the seat on the collision side.
2. Remove the seat on the collision side and check the followingfor damage and de-
formities.
- Harness, connectors and terminals
- Frame and recliner (for front and rear seat), and also adjusterand 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.
Part
Front side air bag and
side curtain air bag
are activated Front side air bag and side curtain air bag are NOT activated
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TF-1
DRIVELINE/AXLE
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CONTENTS
TRANSFER
SERVICE INFORMATION .. ..........................3
DTC INDEX ..................................................... .....3
C1201-C1210, U1000 ......................................... ......3
PRECAUTIONS ...................................................4
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ......
4
Precaution .................................................................4
Service Notice or Precaution .....................................5
PREPARATION ...................................................6
Special Service Tool ........................................... ......6
Commercial Service Tool ..........................................7
NOISE, VIBRATION AND HARSHNESS
(NVH) TROUBLESHOOTING .............................
9
NVH Troubleshooting Chart ................................ ......9
TRANSFER FLUID .............................................10
Replacement ....................................................... ....10
Inspection ................................................................10
AWD SYSTEM ................................................ ....11
Power Transfer Diagram ..................................... ....11
System Description .................................................11
Schematic ...............................................................13
CAN Communication ...............................................13
TROUBLE DIAGNOSIS .....................................14
Fail-Safe Function ............................................... ....14
How to Perform Trouble Diagnosis .........................14
Location of Electrical Parts ......................................15
Circuit Diagram .......................................................16
Wiring Diagram - AWD - ..........................................17
Trouble Diagnosis Chart by Symptom ....................20
AWD Control Unit Input/Output Signal Reference
Value ................................................................... ....
20
CONSULT-III Function (ALL MODE AWD/4WD) ....21
TROUBLE DIAGNOSIS FOR SYSTEM .............24
DTC C1201 CONTROLLER FAILURE ................ ....24
DTC C1203 ABS SYSTEM ......................................24
DTC C1204 4WD SOLENOID ............................. ....25
DTC C1205 4WD ACTUATOR RLY ........................27
DTC C1210 ENGINE SIGNAL 1 ..............................28
DTC U1000 CAN COMM CIRCUIT .........................28
Power Supply Circuit for AWD Control Unit .............28
TROUBLE DIAGNOSIS FOR SYMPTOMS ......30
AWD Warning Lamp Does Not Turn ON When the
Ignition Switch Is Turned to ON ...............................
30
AWD Warning Lamp Does Not Turn OFF Several
Seconds after Engine Started ..................................
30
Heavy Tight-Corner Braking Symptom Occurs
When the Vehicle Is Driven and the Steering
Wheel Is Turned Fully to Either Side after the En-
gine Is Started .........................................................
32
Vehicle Does Not Enter AWD Mode Even Though
AWD Warning Lamp Turned to OFF .......................
33
While Driving, AWD Warning Lamp Flashes Rap-
idly (When Flashing in Approx. 1 Minute and Then
Turning OFF) ....................................................... ....
33
While Driving, AWD Warning Lamp Flashes Slow-
ly (When Continuing to Flash until Turning Ignition
Switch OFF) .............................................................
33
AWD CONTROL UNIT ......................................35
Removal and Installation .........................................35
FRONT OIL SEAL .............................................36
Removal and Installation .........................................36
REAR OIL SEAL ...............................................37
Removal and Installation .........................................37
AIR BREATHER HOSE ....................................39
Removal and Installation .........................................39
TRANSFER ASSEMBLY ..................................40
Removal and Installation .........................................40
Disassembly and Assembly .....................................40
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TF-4
< SERVICE INFORMATION >
PRECAUTIONS
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000001612930
The Supplemental Restraint System such as “A IR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severi ty 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 w hether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the “SUPPLEMENTAL RESTRAINT SYS-
TEM” and “SEAT BELTS” of this Service Manual.
WARNING:
• To avoid rendering the SRS inopera tive, 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 performed by
an authorized NISS AN/INFINITI dealer.
 Improper maintenance, including in correct removal and installation of the SRS, can lead to personal
injury caused by unintent ional activation of the system. For re moval of Spiral Cable and Air Bag
Module, see the “SUPPLEMEN TAL RESTRAINT SYSTEM”.
 Do not use electrical test equipmen t on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identi fied by yellow and/or orange harnesses or har-
ness connectors.
PrecautionINFOID:0000000001327424
 Before connecting or disconnect ing the AWD control unit har-
ness connector, turn ignition switch “OFF” and disconnect
battery ground cable. Because battery voltage is applied to
AWD control unit even if igni tion switch is turned “OFF”.
 When connecting or disconnect ing pin connectors into or
from AWD control unit, take care not to damage pin terminals
(bend or break).
When connecting pin connectors, make sure that there are no
bends or breaks on AWD control unit pin terminal.
SEF289H
SEF291H
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