Infiniti M45 (Y34). Manual - part 799

WT-1

ROAD WHEELS & TIRES

E  SUSPENSION

CONTENTS

C

D

F

G

H

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J

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SECTION 

WT

A

B

WT

ROAD WHEELS & TIRES

PREPARATION ........................................................... 2

Special Service Tools  ............................................... 2
Commercial Service Tools ........................................ 2

NOISE, VIBRATION AND HARSHNESS (NVH) 
TROUBLESHOOTING ................................................ 3

NVH Troubleshooting Chart  ..................................... 3

ROAD WHEEL ............................................................ 4

Inspection ................................................................. 4

ALUMINUM WHEEL  ............................................. 4
STEEL WHEEL  ..................................................... 4

ROAD WHEEL TIRE ASSEMBLY  .............................. 5

Balancing Wheels (Bonding Weight Type)  ............... 5

REMOVAL ............................................................. 5
WHEEL BALANCE ADJUSTMENT  ...................... 5

Rotation .................................................................... 6

LOW TIRE PRESSURE WARNING SYSTEM ............ 7

System Components  ................................................ 7
System Description  .................................................. 7

TRANSMITTER ..................................................... 7
ANTENNA ............................................................. 7
TIRE PRESSURE WARNING CONTROL UNIT 

..... 8

DISPLAY ............................................................... 8

TROUBLE DIAGNOSES  ............................................ 9

Schematic ................................................................ 9
Wiring Diagram  ...................................................... 10
Control Unit Input/Output Signal Standard  ............. 13
ID Registration Procedure  ...................................... 14

ID REGISTRATION WITH TRANSMITTER 
ACTIVATION TOOL  ............................................ 14
ID REGISTRATION WITHOUT TRANSMITTER 
ACTIVATION TOOL  ............................................ 15

Transmitter Wake Up Operation ............................. 15

WITH TRANSMITTER ACTIVATION TOOL ........ 15

Self-Diagnosis ........................................................ 16

DESCRIPTION .................................................... 16
FUNCTION .......................................................... 16
CONSULT-II ........................................................ 16

How to Perform Trouble Diagnosis for Quick and 

Accurate Repair ...................................................... 17

INTRODUCTION ................................................. 17
WORK FLOW  ...................................................... 18

Preliminary Check  .................................................. 19
Malfunction Code/Symptom Chart .......................... 20

TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC 
ITEMS ........................................................................ 21

Inspection 1: Transmitter or Low Tire Pressure 
Warning Control Unit  .............................................. 21

MALFUNCTION CODE NO. 21, 22, 23 OR 24 ... 21

Inspection 2: Transmitter - 1  ................................... 21

MALFUNCTION CODE NO. 31, 32, 33, 34, 41, 
42, 43, 44, 45, 46, 47 OR 48  ............................... 21

Inspection 3: Transmitter - 2  ................................... 22

MALFUNCTION CODE NO. 35, 36, 37 OR 38 ... 22

Inspection 4:Low Tire Pressure Warning Control 
Unit ......................................................................... 22

MALFUNCTION CODE NO. 51 ........................... 22

TROUBLE DIAGNOSIS FOR SYMPTOMS  .............. 23

Inspection 1: Warning Lamp does not Come On 
When Ignition Switch is Turned on  ......................... 23
Inspection 2: Warning Lamp Stays on When Ignition 
Switch is Turned on  ................................................ 23
Inspection 3: Warning Lamp Blinks When Ignition 
Switch is Turned on  ................................................ 25
Inspection 4: Hazard Warning Lamp Blinks When 
Ignition Switch is Turned on  ................................... 26
Inspection 5: “TIRE PRESSURE” Information in 
Display does not Exist  ............................................ 26
Inspection 6: ID Registration can not be Completed 

... 27

REMOVAL AND INSTALLATION  ............................. 28

Transmitter ............................................................. 28

REMOVAL ........................................................... 28
INSTALLATION ................................................... 28

SERVICE DATA  ........................................................ 30

Road Wheel ............................................................ 30
Tire ......................................................................... 30

WT-2

PREPARATION

PREPARATION

PFP:00002

Special Service Tools

AES0003U

The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.

Commercial Service Tools

AES0003V

Tool number 
(Kent-Moore No.)
Tool name

Description

(J45295)
Transmitter activation tool

ID registration

SEIA0462E

Tool name

Description

Power tool

Removing wheel nuts

PBIC0190E

NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING

WT-3

C

D

F

G

H

I

J

K

L

M

A

B

WT

NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING

PFP:00003

NVH Troubleshooting Chart

AES0003W

Use the chart below to help you find the cause of the symptom. If necessary, repair or replace these parts.

×

: Applicable

Reference page

WT

-4

—

—

—

—

—

—

N

V

H in

 PR s

e

c

ti

o

n

.

N

V

H in

 RFD s

e

c

ti

o

n

.

N

V

H 

in

 F

AX a

n

d

 FSU s

e

c

tio

n

s

.

N

V

H in

 RAX a

n

d

 RSU s

e

c

ti

o

n

s

.

Re

fe

r to

 T

IR

E

S

 in

 t

h

is

 c

h

a

rt.

Re

fe

r to

 ROAD W

H

EEL

 i

n

 th

is

 c

h

a

rt

.

N

V

H in

 RAX s

e

c

ti

o

n

.

N

V

H in

 BR s

e

c

ti

o

n

.

N

V

H in

 PS s

e

c

tio

n

.

Possible cause and SUSPECTED PARTS

Ou

t-

o

f-r

o

u

n

d

Im

bal

ance

In

c

o

rr

e

c

t tir

e

 p

re

s

s

u

re

U

n

e

v

en t

ir

e

 w

ear

D

e

fo

rm

a

ti

on or

 d

a

m

age

N

o

n

-un

if

or

m

it

y

In

c

o

rr

e

c

t tir

e

 s

iz

e

PROPELL

E

R SHAF

T

DIFFERENTIAL

FRONT AXLE AND 

F

R

O

N

T

 SUSPENSION

REAR AXLE AND 

RE

AR 

SUSPENSION

TIRES

ROAD W

H

EEL

D

R

IV

E

 SH

AF

T

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

×

×

×

×

×

×

WT-4

ROAD WHEEL

ROAD WHEEL

PFP:40300

Inspection

AES0003X

ALUMINUM WHEEL

1.

Check tires for wear and improper inflation.

2.

Check wheels for deformation, cracks and other damage. If
deformed, remove wheel and check wheel runout.

a.

Remove tire from aluminum wheel and mount on a tire balance
machine.

b.

Set dial indicator as shown in the illustration.

STEEL WHEEL

1.

Check tires for wear and improper inflation.

2.

Check wheels for deformation, cracks and other damage. If
deformed, remove wheel and check wheel runout.

a.

Remove tire from steel wheel and mount wheel on a tire balance
machine.

b.

Set two dial indicators as shown in the illustration.

c.

Set each dial indicator to 0.

d.

Rotate wheel and check dial indicators at several points around
the circumference of the wheel.

e.

Calculate runout at each point as shown below.

f.

Select maximum positive runout value and the maximum nega-
tive value.
Add the two values to determine total runout.
In case a positive or negative value is not available, use the
maximum value (negative or positive) for total runout.
If the total runout value exceeds the limit, replace steel wheel.

Wheel runout (Dial indicator value):

Refer to 

WT-30, "SERVICE DATA"

SFA975B

Radial runout = (A+B)/2

Lateral runout = (C+D)/2

Wheel runout:

Refer to 

WT-30, "SERVICE DATA"

SFA981B