2007 INFINITI FX35 ignition

WT-2Revision: 2006 July 2007 FX35/FX45
Low Tire Pressure Warning Lamp Blinks When Igni-
tion Switch Is Turned On ..................................... ... 37
Run-Flat Tire Warning Lamp Stays On When Igni-
tion Switch is Turned On ...................................... ... 38
Turn Signal Lamp Blinks When Ignition Switch Is
Turned On ............................................................ ... 38
ID Registration Can Not Be Completed ............... ... 38 REMOVAL AND INSTALLATION ...........................
... 39
Transmitter ........................................................... ... 39
REMOVAL ......................................................... ... 39
INSTALLATION ................................................. ... 39
SERVICE DATA AND SPECIFICATIONS (SDS) ... ... 41
Road Wheel ......................................................... ... 41
Tire ....................................................................... ... 41

WT-4
PRECAUTIONS
Revision: 2006 July 2007 FX35/FX45
PRECAUTIONSPFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
NES000L3
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.
PrecautionsNES000L5

Before connecting or disconnecting the BCM harness con-
nector, turn ignition switch “OFF” and disconnect the bat-
tery cable from the negative terminal. Battery voltage is
applied to BCM even if ignition switch is turned “OFF”.

When connecting or disconnecting 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.

Before replacing BCM, perform control unit input/output
signal inspection and make sure whether BCM functions
properly or not. Refer to WT-19, "
Control Unit Input/Output
Signal Standard" .
SEF289H
SEF291H
SDIA1848E

TIRE PRESSURE MONITORING SYSTEM WT-13
C
D
F
G H
I
J
K L
M A
B
WT
Revision: 2006 July 2007 FX35/FX45
Run-Flat Tire Warning Lamp Indication
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
not displayed 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
SKIA5994E

TROUBLE DIAGNOSES WT-19
C
D
F
G H
I
J
K L
M A
B
WT
Revision: 2006 July 2007 FX35/FX45
Control Unit Input/Output Signal StandardNES000GU
Standards using a circuit tester and oscilloscope
Terminal
Item 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
switches
20 (Y) Remote keyless entry receiver
(Signal) Stand-by
Press any of the keyfob
switches
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

WT-20
TROUBLE DIAGNOSES
Revision: 2006 July 2007 FX35/FX45
ID Registration ProcedureNES000GV
ID REGISTRATION WITH ACTIVATION TOOL
This procedure must be done after replacement of a transmitter, BCM or rotating wheels.
1. Perform “CONSULT-II Start Procedure”. Refer to GI-38, "
CONSULT-II Start Procedure" .
2. Select “AIR PRESSURE MONITOR” on “SELECT WORK ITEM”
3. Touch “WORK SUPPORT” on “SELECT DIAG MODE” screen, and select “ID REGIST”.
4. With the transmitter activation tool (J-45295) pushed against the front-left transmitter position of the air valve, press and hold the
button 5 seconds.
5. 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.
6. 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.
46 (BR/W)
Ground Turn 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-II
1 Front LH
2 times flashing “YET”
↓
“DONE”
2 Front RH
3 Rear RH
4 Rear LH
SEIA0460E

WT-22
TROUBLE DIAGNOSES
Revision: 2006 July 2007 FX35/FX45
Transmitter Wake Up OperationNES000GW
WITH ACTIVATION TOOL
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 warning
lamp 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.
SEIA0460E
SEIA0794E

TROUBLE DIAGNOSES WT-23
C
D
F
G H
I
J
K L
M A
B
WT
Revision: 2006 July 2007 FX35/FX45
Self-DiagnosisNES000GX
DESCRIPTION
During driving, the low tire pressure warning system 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 malfunction location is indicated by the warning lamp flash-
ing and the buzzer sounds.
LOW TIRE PRESSURE WARNING LAMP DIAGNOSTIC CHART
Diagnosis
Item Symptom
(Ignition switch ON) Low tire pressure warning 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 acti-
vated. Activate all wheel transmit-
ters. Refer to WT-22,
"Transmitter Wake Up Oper-
ation" .
Warning lamp blinks
1 time Front LH wheel
transmitter is not
activated. Activate front LH wheel
transmitter. Refer to WT-22,
"Transmitter Wake Up Oper-
ation" .
Warning lamp blinks
2 times Front RH wheel
transmitter is not
activated. Activate front RH wheel
transmitter. Refer to WT-22,
"Transmitter Wake Up Oper-
ation" .
Warning lamp blinks
3 times Rear RH wheel
transmitter is not
activated. Activate rear RH wheel
transmitter. Refer to WT-22,
"Transmitter Wake Up Oper-
ation" .
SEIA0592E
SEIA0593E
PEIA0073E
SEIA0595E
SEIA0596E

WT-24
TROUBLE DIAGNOSES
Revision: 2006 July 2007 FX35/FX45
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
Low tire pres-
sure warning
lamp Warning lamp blinks
4 times Rear LH wheel
transmitter is not
activated. Activate rear LH wheel
transmitter. Refer to WT-22,
"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.
Install 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-II Self
Diagnosis. Refer to WT-
23, "Self-Diagnosis" .
–Perform ID Registration if
needed. Refer to WT-20,
"ID Registration Proce-
dure" .
Turn signal
lamp Turn signal lamp
does not flash 2
times or horn does
not sound after trans-
mitter activation. 1. Tool J-45295 (spe-
cial service tool)
battery low.
2. Ignition OFF dur- ing activation.
3. Tool J-45295 (spe- cial service tool)
not positioned cor-
rectly.
4. Transmitters already activated. 1. Install new battery.
2. Make sure ignition is ON during activation.
3. Position tool correctly dur- ing activation.
4. None
Diagnosis
Item Symptom
(Ignition switch ON) Low tire pressure warning 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-II Self Diagnosis. Refer to
WT-25, "
CONSULT-II
Function (BCM)"SEIA0793E