ignition switch INFINITI FX35 2008 Service Manual

WT-1
SUSPENSION
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SECTION WT
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O PCONTENTS
ROAD WHEELS & TIRES
SERVICE INFORMATION .. ..........................2
INDEX FOR DTC ............................................ .....2
DTC No. Index .................................................... ......2
PRECAUTIONS ...................................................3
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ......
3
Precaution .................................................................3
Service Notice or Precaution .....................................4
PREPARATION ...................................................5
Special Service Tool ........................................... ......5
Commercial Service Tool ..........................................5
NOISE, VIBRATION AND HARSHNESS
(NVH) TROUBLESHOOTING .............................
6
NVH Troubleshooting Chart ................................ ......6
ROAD WHEEL ....................................................7
Inspection ............................................................ ......7
ROAD WHEEL TIRE ASSEMBLY ......................8
Balancing Wheels (Bonding Weight Type) .......... ......8
Tire Rotation ..............................................................9
TIRE PRESSURE MONITORING SYSTEM .......10
System Component ............................................. ....10
System Description .................................................10
CAN COMMUNICATION ....................................13
System Description ............................................. ....13
TROUBLE DIAGNOSES ....................................14
Schematic ........................................................... ....14
Wiring Diagram- T/WARN - .....................................15
Control Unit Input/Output Signal Standard ..............17
ID Registration Procedure ................................... ....19
Transmitter Wake Up Operation ..............................20
Self-Diagnosis .........................................................20
CONSULT-III Function (BCM) .................................22
How to Perform Trouble Diagnosis for Quick and
Accurate Repair .......................................................
24
Preliminary Check ...................................................25
Malfunction Code/Symptom Chart ...........................26
TROUBLE DIAGNOSIS FOR SELF-DIAG-
NOSTIC ITEMS .................................................
28
Transmitter or Control Unit (BCM) ...........................28
Transmitter - 1 .........................................................28
Transmitter - 2 .........................................................29
Vehicle Speed Signal ..............................................29
TROUBLE DIAGNOSIS FOR SYMPTOMS ......30
Low Tire Pressure Warning Lamp Does Not Come
On When Ignition Switch Is Turned On ...................
30
Low Tire Pressure Warning Lamp Stays On When
Ignition Switch Is Turned On ............................... ....
30
Low Tire Pressure Warning Lamp Blinks When Ig-
nition Switch Is Turned On ......................................
31
Run-Flat Tire Warning Lamp Stays On When Igni-
tion Switch Is Turned On .........................................
32
Turn Signal Lamp Blinks When Ignition Switch Is
Turned On ...............................................................
32
ID Registration Cannot Be Completed ....................32
REMOVAL AND INSTALLATION .....................33
Transmitter ..............................................................33
SERVICE DATA AND SPECIFICATIONS
(SDS) .................................................................
35
Road Wheel .............................................................35
Tire ..........................................................................35
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PRECAUTIONSWT-3
< SERVICE INFORMATION >
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PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000001612926
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 whether 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 inoper ative, 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 NISSAN/INFINITI dealer.
 Improper maintenance, including in correct removal and installation of the SRS, can lead to personal
injury caused by unintentional act ivation of the system. For removal of Spiral Cable and Air Bag
Module, see the “SUPPLEMEN TAL RESTRAINT SYSTEM”.
 Do not use electrical test equipm ent 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:0000000001327568
 Before connecting or disco nnecting the BCM harness con-
nector, turn ignition switch “OFF” and disconnect the battery
cable from the negative terminal. Battery voltage is applied to
BCM even if ignition sw itch is turned “OFF”.
 When connecting or disconnect ing pin connectors into or
from BCM, take care not to damage pin terminals (bend or
break).
When connecting pin connectors make sure that there are not
any bends or breaks on BCM pin terminals.
SEF289H
SEF291H
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WT-12
< SERVICE INFORMATION >
TIRE PRESSURE MONITORING SYSTEM
Note 1: Standard air pressure is for 220 kpa (2.2 kg/cm2, 32 psi) vehicles.
DISPLAY UNIT
Displays the air pressure of each tire.
 After the ignition switch is turned ON, the pressure values are notdisplayed until the data of each wheel stabilizes.
Condition Warning lamp
Less than 86 kPa (0.88 kg/cm
2, 12.5 psi) [Note 1] ON
JPEIC0024GB
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WT-18
< SERVICE INFORMATION >
TROUBLE DIAGNOSES
Te r m i n a lItem Condition Voltage (V)
Approx. value
+ (wire color) –
15 (G)
Ground Tire pressure
warning check
connector Always 5V
18 (B) Remote keyless entry receiver
(Ground) —0V
19 (R) Remote keyless entry receiver
(Power supply) Stand-by
Press any of the keyfob switch-
es
20 (Y) Remote keyless entry receiver
(Signal) Stand-by
Press any of the keyfob switch-
es
38 (W/L) Ignition switch Ignition switch ON or START Battery voltage (12V) 39 (L) CAN-H — —
40 (P) CAN-L — —
42 (L/R) Battery power supply (Fuse) Always Battery voltage (12V)
45 (G/W) Turn signal (left)  Ignition switch ON
 Combination switch is turn
signal (left)
OCC3879D
OCC3882D
OCC3881D
OCC3880D
SKIA3009J
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TROUBLE DIAGNOSESWT-19
< SERVICE INFORMATION >
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ID Registration ProcedureINFOID:0000000001327582
ID REGISTRATION WITH ACTIVATION TOOL
This procedure must be done after replacemen t of a transmitter, BCM or rotating wheels.
1. Touch “WORK SUPPORT” on “SELECT DIAG MODE” screen, and select “ID REGIST”.
2. With the transmitter activati on tool (J-45295) pushed against the
front-left transmitter position of the air valve, press and hold the
button 5 seconds.
3. Register the IDs in order from FR LH, FR RH, RR RH to RR LH. When ID registration of each wheel has been completed, turn
signal lamp blinks.
4. After completing all ID registrations, press “END” to complete the procedure.
NOTE:
Be sure to register the IDs in order from FR LH, FR RH, RR RH, to RR LH, or the self-diagnostic results dis-
play will not function properly.
ID Registration without Tr ansmitter Activation Tool
CAUTION:
This procedure must be done after replacement of a transmitter, BCM, or rotating wheels.
1. Touch “WORK SUPPORT” on “SELECT DIAG MODE” screen, and select “ID REGIST”.
2. Adjust the tire pressure to the values shown in t he table below for ID registration, and drive the vehicle at
40 km/h (25 MPH) or more for several minutes.
NOTE:
If ID registration is unable, buzzer beeps.
3. After completing all ID registrations, press “END” to complete the procedure.
46 (BR/W) GroundTurn signal (right)
 Ignition switch ON
 Combination switch is turn
signal (right)
49 (B) Ground — 0V
52 (B)
55 (G) Battery power supply (F /L) Always Battery voltage (12V)
Te r m i n a l
Item Condition Voltage (V)
Approx. value
+ (wire color) –
SKIA3009J
Activation tire position Turn signal lamp CONSULT-IIII
1 Front LH
2 times flashing “Red”
↓
“Green”
2Front RH
3Rear RH
4 Rear LH
SEIA0460E
Tire position
Tire pressure kPa (kg/cm2 , psi)
Front LH 240 (2.4, 34)
Front RH 220 (2.2, 31) Rear RH 200 (2.0, 29)
Rear RH 180 (1.8, 26)
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WT-20
< SERVICE INFORMATION >
TROUBLE DIAGNOSES
4. Inflate all tires to proper pressure. Refer to WT-35, "Tire".
Transmitter Wake Up OperationINFOID:0000000001327583
W I T H A C T I VAT I O N T O O L
1. With the transmitter activation tool (J-45295) pushed against the
front-left transmitter, press the button for 5 seconds.
 When ignition switch ON, as the low tire pressure warninglamp blinks per the following diagram, the respective transmit-
ter then must be woken up.
2. Register the ID of wheel that low tire pressure warning lamp flashes. When wake up of registered wheel
has been completed, turn signal lamp flashes two times.
3. After completing wake up all transmitters, make sure low tire pressure warning lamp goes out.
Self-DiagnosisINFOID:0000000001327584
DESCRIPTION
During driving, the low tire pressure warning syste m receives the signal transmitted from the transmitter
installed in each wheel, and gives alarms when the tire pressure becomes low. The control unit (BCM) of this
system has pressure judgment and trouble diagnosis functions.
FUNCTION
When the low tire pressure warning system detects low inflation pressure or another unusual symptom, the
warning lamps in the combination meter comes on. To start the self-diagnostic results mode, ground terminal
of the tire pressure warning check connector. The malf unction location is indicated by the warning lamp flash-
ing and the buzzer sounds.
LOW TIRE PRESSURE WARNING LAMP DIAGNOSTIC CHART
Activation tire position CONSULT-III
Front LH “Red”↓
“Green”
Front RH
Rear RHRear LH
SEIA0460E
SEIA0794E
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TROUBLE DIAGNOSESWT-21
< SERVICE INFORMATION >
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Diagnosis Item Symptom
(Ignition switch ON) Low tire pressure wa
rning lamp Cause Action
Low tire pres-
sure warning
lamp Warning lamp comes
on immediately and
turns off after 1 sec-
ond
All wheel transmit-
ters are “activated”
(working).
None (system OK)
Warning lamp blinks
on for 2 seconds,
then turns off for 0.2
seconds-repeats All wheel transmit-
ters are not activat-
ed.
Activate all wheel transmit-
ters. Refer to WT-20, "
Trans-
mitter Wake Up Operation".
Warning lamp blinks
1 time Front LH wheel
transmitter is not acti-
vated.Activate front LH wheel
transmitter. Refer to WT-20,
"Transmitter Wake Up Oper-
ation".
Warning lamp blinks
2 times Front RH wheel
transmitter is not acti-
vated.Activate front RH wheel
transmitter. Refer to WT-20,
"Transmitter Wake Up Oper-
ation".
Warning lamp blinks
3 times Rear RH wheel
transmitter is not acti-
vated.Activate rear RH wheel
transmitter. Refer to WT-22,
"CONSULT-III Function
(BCM)".
SEIA0592E
SEIA0593E
PEIA0073E
SEIA0595E
SEIA0596E
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WT-22
< SERVICE INFORMATION >
TROUBLE DIAGNOSES
NOTE:
If more than one wheel transmitter is NOT activated, the warning lamp blinking patterns for those wheels will combine. (Example: one
blink/OFF/three blinks = Rear LH and Rear RH transmitters are not activated.)
RUN-FLAT TIRE WARNING LAMP DIAGNOSTIC CHART
CONSULT-III Function (BCM)INFOID:0000000001327585
FUNCTION
CONSULT-III can display each self-diagnostic item using the diagnostic test modes shown following.
Low tire pres-
sure warning
lampWarning lamp blinks
4 times
Rear LH wheel trans-
mitter is not activat-
ed.Activate rear LH wheel
transmitter. Refer to WT-20,
"Transmitter Wake Up Oper-
ation".
Warning lamp comes
on and does not turn
off The fuse for combi-
nation meter from
battery is pulled out.
Check the fuse for combina-
tion meter from battery. In-
stall or replace (if needed).
BCM connector
pulled out. Check BCM connector. Re-
connect if needed.
Low tire pressure or
tire pressure moni-
toring system mal-
function.  Perform CONSULT-III Self
Diagnosis. Refer to "Self-
Diagnosis".
- Perform ID Registration if needed. Refer to WT-19,
"ID Registration Proce-
dure".
Turn signal
lamp Turn signal lamp
does not flash 2 times
or horn does not
sound after transmit-
ter activation. 1. Tool J-45295
(special ser-
vice tool) bat-
tery low.
2. Ignition OFF
during activa-
tion.
3. Tool J-45295
(special ser-
vice tool) not
positioned cor-
rectly.
4. Transmitters al- ready activated. 1. Install new battery.
2. Make sure ignition is
ON during activation.
3. Position tool correctly during activation.
4. None
Diagnosis
Item Symptom
(Ignition switch ON) Low tire pressure wa
rning lamp Cause Action
SEIA0597E
SEIA0598E
Diagnosis
Item Symptom
(Ignition Switch ON) Run-flat tire warning lamp Cause Action
Run-flat tire
warning lamp Warning lamp comes
on and does not turn
off Tire pressure drop to
86 kPa (0.88 kg/cm
2,
12.5 psi) or less. 1. Check air pressure of
tire.
2. Repair or change the
tire (if needed)
3. Perform CONSULT-III Self Diagnosis. Refer
to WT-22, "
CONSULT-
III Function (BCM)".SEIA0793E
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WT-24
< SERVICE INFORMATION >
TROUBLE DIAGNOSES
NOTE:
Before performing the self-diagnosis, be sure to register the ID, or else the actual malfunction location may be different from that dis-
played on CONSULT-III.
ACTIVE TEST MODE
Test Item
 Flasher
Horn
 Warning lamp
 ID regist warning
 Flat tire warning
How to Perform Trouble Diagnosis for Quick and Accurate RepairINFOID:0000000001327586
INTRODUCTION
 Before troubleshooting, verify customer complaints.
 If a vehicle malfunction is difficult to reproduce, harnesses, harness connectors or terminals may be mal-
functioning. Hold and shake these parts to make sure they are securely connected.
 When using a circuit tester to measure voltage or re sistance of each circuit, be careful not to damage or
deform connector terminals.
WORK FLOW
MONITOR CONDITION SPECIFICATION
VEHICLE SPEED Drive vehicle. V ehicle speed (km/h or MPH)
AIR PRESS FL
AIR PRESS FR
AIR PRESS RR
AIR PRESS RL  Drive vehicle for a few minutes.
Tire pressure (kPa or Psi)
or
 Ignition switch ON and activation tool is transmitting activation signals.
ID REGST FL 1
ID REGST FR 1
ID REGST RR 1
ID REGST RL 1 Ignition switch ON Registration ID: DONE
No registration ID: YET
WARNING LAMP Low tire pressure
warning lamp on: ON
Low tire pressure wa rning lamp off: OFF
BUZZER Buzzer in combination meter on: ON
Buzzer in combination meter off: OFF
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TROUBLE DIAGNOSESWT-25
< SERVICE INFORMATION >
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Preliminary CheckINFOID:0000000001327587
BASIC INSPECTION
1.CHECK ALL TIRE PRESSURES
 Check all tire pressures. Refer to WT-35, "
Tire".
OK or NG
OK >> GO TO 2.
NG >> Adjust tire pressure to specified value.
2.CHECK LOW TIRE PRESSURE WARNING LAMP ACTIVATION
1. Check low tire pressure warning lamp activation.
2. Does low tire pressure warning lamp activate for 1 second when ignition switch is turned “ON”?
Does warning lamp activate?
YES >> GO TO 3.
NO >> Check fuse and combination meter.
3.CHECK CONNECTOR
1. Disconnect BCM harness connectors M3 and M4.
2. Check terminals for damage or loose connection.
Preliminary check: WT-25Self-diagnosis:WT-20Trouble diagnosis for symptoms: WT-30
SEIA0100E
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