Infiniti Q45. Manual — part 899
PREPARATION
WT-5
C
D
F
G
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A
B
WT
PREPARATION
PFP:00002
Special Service Tools
NES000CW
The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.
Commercial Service Tools
NES000CX
Tool number
(Kent-Moore No.)
Tool name
Description
—
(J-45295)
Transmitter activation tool
ID registration
SEIA0462E
Tool name
Description
Power tool
Removing wheel nuts
PBIC0190E
WT-6
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
PFP:00003
NVH Troubleshooting Chart
NES00070
Use the chart below to help you find the cause of the symptom. If necessary, repair or replace these parts.
×
: Applicable
Reference page
,
—
—
NVH i
n
PR s
e
c
tio
n
NVH i
n
RFD s
e
c
tio
n
NVH
in
F
AX a
n
d
FSU s
e
c
tio
n
s
NVH i
n
RAX a
n
d
RSU s
e
c
tio
n
s
Re
fe
r to
TIRES in
t
h
is
c
h
a
rt
Re
fe
r to
ROAD W
H
EEL
in
th
is
c
h
a
rt
NVH i
n
RAX s
e
c
tio
n
NVH i
n
BR s
e
c
tio
n
N
V
H
i
n
PS se
ct
io
n
Possible cause and SUSPECTED PARTS
Im
pr
ope
r i
n
st
al
la
ti
on,
l
o
o
s
ene
ss
O
u
t-
of
-r
oun
d
Im
ba
la
nce
In
c
o
rr
e
c
t ti
re
p
re
s
s
u
re
U
nev
en t
ir
e
w
e
a
r
D
e
fo
rm
at
ion or
da
m
a
ge
N
on-
uni
fo
rm
it
y
In
cor
rec
t t
ir
e
si
ze
PROPELLER SHAFT
DI
FF
ERENTI
AL
FRONT A
X
LE
AND FRONT
SUSPENSION
REAR A
X
LE
AND REAR
SUSPENSION
TIR
E
S
ROAD W
H
EEL
DRI
VE SHAFT
BRAKE
STEERING
Symptom
TIRES
Noise
×
×
×
×
×
×
×
×
×
×
×
×
×
×
×
Shake
×
×
×
×
×
×
×
×
×
×
×
×
×
×
Vibration
×
×
×
×
×
×
×
Shimmy
×
×
×
×
×
×
×
×
×
×
×
×
×
Judder
×
×
×
×
×
×
×
×
×
×
×
×
Poor quality ride
or handling
×
×
×
×
×
×
×
×
×
×
ROAD WHEEL
Noise
×
×
×
×
×
×
×
×
×
×
×
×
Shake
×
×
×
×
×
×
×
×
×
×
×
Shimmy, judder
×
×
×
×
×
×
×
×
×
Poor quality ride
or handling
×
×
×
×
×
×
×
LOW TIRE PRESSURE WARNING SYSTEM
WT-7
C
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WT
LOW TIRE PRESSURE WARNING SYSTEM
PFP:40300
System Description
NES00075
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 of this system
has pressure judgement and trouble diagnosis functions.
FUNCTION
When the low tire pressure warning system detects low inflation pressure or another unusual symptom, the
warning lamps on the instrument panel comes on. To start the self-diagnostic results mode, ground the self-
diagnostic (check) terminal. The malfunction location is indicated by the warning lamp flashing and the buzzer
sounds.
TRANSMITTER
A sensor-transmitter (1) integrated with a valve is installed on a
wheel (2), and transmits a detected air pressure signal in the form of
a radio wave.
ANTENNA
Receives the radio wave signal transmitted by the transmitter.
LOW TIRE PRESSURE WARNING CONTROL UNIT
Reads the radio wave signal received by the antenna, and controls
the low tire pressure warning lamp and the buzzer operations. It also
has a judgement function to detect a system malfunction.
:
Outer
SEIA0768E
SEIA0042E
1:
Low tire pressure warning control unit
SEIA0739E
WT-8
LOW TIRE PRESSURE WARNING SYSTEM
LOW TIRE PRESSURE WARNING LAMP AND BUZZER
●
Turns ON when there is a malfunction in low tire pressure warn-
ing system.
●
Turns ON when ignition switch is turned ON, for purpose of lamp
check. Turns OFF approximately for 1 second after the engine
starts if system is normal.
Low Tire Pressure Warning Lamp
*: Standard air pressure is for 230 kPa (2.3 kg/cm
2
, 33 psi) vehicle.
TIRE PRESSURE WARNING CHECK SWITCH
The following item can be checked by grounding the tire pressure
warning check switch (1) harness connector terminal.
●
The low tire pressure warning lamp in the combination meter will
flicker according to the self-diagnostic results.
VEHICLE INFORMATION DISPLAY
Displays the air pressure of each tire.
●
After the ignition switch is turned ON, the pressure values are
not be displayed until the data of all four wheels stabilizes.
SEIA0434E
Condition
Warning lamp
Buzzer
Less than 186 kPa (1.86 kg/cm
2
, 27 psi)*
ON
Sounds for 10 sec.
System malfunction
ON
OFF
SEIA0740E
SEIA0044E
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