Infiniti Q45. Manual — part 898
WT-1
ROAD WHEELS & TIRES
E SUSPENSION
CONTENTS
C
D
F
G
H
I
J
K
L
M
SECTION
WT
A
B
WT
ROAD WHEELS & TIRES
PRECAUTIONS . . . . . . . . . . . . . . .. 3
PREPARATION . . . . . . . . . . . . . . ... 5
Special Service Tools . . . . . . . . . . . ... 5
Commercial Service Tools . . . . . . . . . . 5
NOISE, VIBRATION AND HARSHNESS (NVH)
TROUBLESHOOTING . . . . . . . . . . . . 6
NVH Troubleshooting Chart . . . . . . . . . . 6
LOW TIRE PRESSURE WARNING SYSTEM . . . 7
System Description . . . . . . . . . . . . .. 7
VEHICLE INFORMATION DISPLAY . . . . . . 8
System Diagram . . . . . . . . . . . . . ... 9
COMPONENTS FUNCTION DESCRIPTION . ... 9
TROUBLE DIAGNOSIS . . . . . . . . . . . 10
How to Perform Trouble Diagnosis . . . . . . 10
LOW TIRE PRESSURE WARNING CONTROL
UNIT INSPECTION TABLE . . . . . . . . . 17
CONSULT-II Function (AIR PRESSURE MONI-
TOR) . . . . . . . . . . . . . . . . . .. 19
Self-Diagnostic Procedure . . . . . . . . . .. 21
ID Registration Procedure . . . . . . . . . .. 24
Transmitter Wake Up Operation . . . . . . . . 25
WITH ACTIVATION TOOL . . . . . . . . .. 25
Inspections Before Trouble Diagnosis . . . . . 26
DIAGNOSTIC PROCEDURE . . . . . . . .. 26
TROUBLE DIAGNOSIS FOR SYSTEM . . . . . 29
Power Supply Circuit . . . . . . . . . . . .. 29
Transmitter (NO DATA) . . . . . . . . . . ... 31
Transmitter (CHECKSUM ERR, CODE ERR, BATT
VOLT LOW) . . . . . . . . . . . . . . . 33
WT-2
MONITOR MODE . . . . . . . . . . . . 35
DIAGNOSTIC PROCEDURE . . . . . . . .. 35
Vehicle Speed Signal . . . . . . . . . . . .. 36
Component Inspection . . . . . . . . . . . 39
COMBINATION FLASHER UNIT . . . . . . 39
TROUBLE DIAGNOSIS FOR SYMPTOMS . . . .. 40
DIAGNOSTIC PROCEDURE . . . . . . . .. 40
Low Tire Pressure Warning Lamp Stays ON When
Ignition Switch Is Turned ON . . . . . . . . .. 42
DIAGNOSTIC PROCEDURE . . . . . . . .. 42
Low Tire Pressure Warning Lamp Blinks When Igni-
tion Switch Is Turned ON . . . . . . . . . . 44
SYMPTOM: . . . . . . . . . . . . . . .. 44
DIAGNOSTIC PROCEDURE . . . . . . . .. 44
Hazard Warning Lamp Blinks When Ignition Switch
Is Turned ON . . . . . . . . . . . . . . .. 45
DIAGNOSTIC PROCEDURE . . . . . . . .. 45
“TIRE PRESSURE” Information In Display Does
Not Exist . . . . . . . . . . . . . . . . . 46
DIAGNOSTIC PROCEDURE . . . . . . . ...46
ID Registration Cannot Be Completed . . . . . 48
DIAGNOSTIC PROCEDURE . . . . . . . ...48
CONTROL UNIT . . . . . . . . . . . . . . 49
Removal and Installation . . . . . . . . . . .49
REMOVAL . . . . . . . . . . . . . . . 49
INSTALLATION . . . . . . . . . . . . . 49
COMBINATION FLASHER UNIT . . . . . . . ..50
Removal and Installation . . . . . . . . . . .50
REMOVAL . . . . . . . . . . . . . . . 50
INSTALLATION . . . . . . . . . . . . . 50
TRANSMITTER . . . . . . . . . . . . . . .51
Removal and Installation . . . . . . . . . . .51
REMOVAL . . . . . . . . . . . . . . . 51
INSTALLATION . . . . . . . . . . . . . 51
ROAD WHEEL . . . . . . . . . . . . . . ..53
Inspection . . . . . . . . . . . . . . . . 53
ALUMINUM WHEEL . . . . . . . . . . . 53
STEEL WHEEL (FOR EMERGENCY USE) . . 53
ROAD WHEEL TIRE ASSEMBLY . . . . . . . .54
Balancing Wheels (Bonding Weight Type) . . . ..54
REMOVAL . . . . . . . . . . . . . . . 54
WHEEL BALANCE ADJUSTMENT . . . . . .54
Tire Rotation . . . . . . . . . . . . . . . 55
PRECAUTIONS
WT-3
C
D
F
G
H
I
J
K
L
M
A
B
WT
PRECAUTIONS
PFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
NES000CS
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.
Precautions
NES000CU
●
Before connecting or disconnecting the low tire pressure
warning control unit harness connector, turn ignition
switch “OFF” and disconnect the battery cable from the
negative terminal. Battery voltage is applied to low tire
pressure warning control unit even if ignition switch is
turned “OFF”.
●
When connecting or disconnecting pin connectors into or
from low tire pressure warning control unit, 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 low tire pressure warning con-
trol unit pin terminals.
●
Before replacing low tire pressure warning control unit, per-
form low tire pressure warning control unit input/output
signal inspection and make sure whether low tire pressure
warning control unit functions properly or not. Refer to
17, "Low Tire Pressure Warning Control Unit Input/Output
Signal Reference Values"
SEF289H
SEF291H
SDIA1848E
WT-4
PRECAUTIONS
Service Notice
NES000CV
●
ID registration is required when replacing or rotating wheels, replacing transmitter or low tire pressure
warning control unit. Refer to
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