Infiniti QX56 (Z62). Manual - part 1378

TIRE INFLATION INDICATOR DOES NOT ACTIVATE

WT-59

< SYMPTOM DIAGNOSIS >

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TIRE INFLATION INDICATOR DOES NOT ACTIVATE

Description

INFOID:0000000006225540

The tire inflation indicator does not function while inflating a tire when the A/T shift selector position is in P-
range with the ignition switch ON or with the engine started.
NOTE:
• After starting to inflate the tire, it takes a few seconds for the tire inflation indicator to function.
• If there is no response for approximately 15 seconds or more after inflating the tires, cancel the use of the

tire inflation indicator function or move the vehicle approximately 1 m (3.2 ft) backward or forward to try
again. The air filler pressure may be weak or out of service area.

• For tire inflation indicator, Refer to 

WT-10, "Tire Inflation Indicator Function"

.

Diagnosis Procedure

INFOID:0000000006225541

1.

 LOCATION CHANGE 

Move the vehicle to other area and repeat the procedure of the tire inflation indicator function. Refer to 

WT-10,

"Tire Inflation Indicator Function"

.

Is the function normal?

YES

>> Normal (the tire inflation indicator may not operate, depending on reception condition.)

NO

>> GO TO 2.

2.

PERFORM LOW TIRE PRESSURE WARNING CONTROL UNIT SELF-DIAGNOSIS

With CONSULT-III

1.

Drive for 10 minutes at a speed of 40 km/h (25 MPH) or more.

2.

Stop the vehicle.

3.

Perform self-diagnosis for “AIR PRESSURE MONITOR”.

Is any DTC detected?

YES

>> Perform trouble diagnosis for detected DTC. Refer to 

WT-18, "DTC Index"

.

NO

>> GO TO 3.

3.

CHECK HAZARD WARNING LAMP OPERATION

Check hazard warning lamp operation with hazard switch.

Does the hazard warning lamp blink?

YES

>> GO TO 4.

NO

>> Perform trouble diagnosis for the hazard warning lamp. Refer to 

EXL-113, "Symptom Table"

.

4.

PERFORM TCM SELF-DIAGNOSIS

With CONSULT-III

Perform self-diagnosis for “TRANSMISSION”.
Is any DTC detected?

YES

>> Check malfunctioning circuit. Refer to 

TM-78, "DTC Index"

.

NO

>> GO TO 5.

5.

CHECK HORN OPERATION

Check horn operation. Refer to 

SEC-143, "Component Function Check"

.

Is the operation normal?

YES

>> GO TO 6.

NO

>> Repair or replace error-detected parts.

6.

PERFORM BCM SELF-DIAGNOSIS

With CONSULT-III

Perform self-diagnosis for “BCM”.

Is any DTC detected?

YES

>> Check malfunctioning circuit. Refer to 

BCS-57, "DTC Index"

.

NO

>> Replace low tire pressure warning control unit. Refer to 

WT-65, "Removal and Installation"

. 

WT-60

< SYMPTOM DIAGNOSIS >

ID REGISTRATION CANNOT BE COMPLETED

ID REGISTRATION CANNOT BE COMPLETED

Description

INFOID:0000000006225542

The ID of the transmitter installed in each wheel cannot be registered in the tire pressure monitoring system.
Inspect the transmitter or the tire pressure monitoring system circuit.

Diagnosis Procedure

INFOID:0000000006225543

1.

TRANSMITTER WAKE-UP

Perform the transmitter wake-up. Refer to 

WT-28, "Work Procedure"

.

Is the transmitter wake-up completed?

YES

>> GO TO 3.

NO

>> GO TO 2.

2.

CHECK TRANSMITTER ACTIVATION TOOL

Check transmitter activation tool.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Replace battery for transmitter activation tool, or repair or replace transmitter activation tool.

3.

TRANSMITTER ID REGISTRATION

Perform transmitter ID registration. Refer to 

WT-29, "Work Procedure"

.

Is transmitter ID registration completed?

YES

>> GO TO 4.

NO

>> Change the work location and perform ID registration again.

4.

CHECK TIRE PRESSURE SIGNAL

With CONSULT-III

1.

Drive for 3 minutes at a speed of 40 km/h (25 MPH) or more, then drive normally for 10 minutes.

2.

Stop the vehicle.

3.

Select “DATA MONITOR” for “AIR PRESSURE MONITOR” with CONSULT-III.

4.

Within 5 minutes after vehicle stopped, check that the tire pressures match the standard value.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Change the work location, then GO TO 3.

Monitor item

Displayed value

AIR PRESS FL

Approximately equal to the indication on tire gauge value for front LH tire

AIR PRESS FR

Approximately equal to the indication on tire gauge value for front RH tire

AIR PRESS RR

Approximately equal to the indication on tire gauge value for rear RH tire

AIR PRESS RL

Approximately equal to the indication on tire gauge value for rear LH tire

NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING

WT-61

< SYMPTOM DIAGNOSIS >

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NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING

NVH Troubleshooting Chart

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

×

: Applicable

Reference

WT

-64, "

Ex

pl

od

ed

 V

iew

"

WT

-64, "

In

sp

ecti

on

"

WT

-62, "

Adj

u

stment

"

WT

-69,

 "

T

ire Air Pressure

"

WT

-64, "

In

sp

ecti

on

"

—

—

WT

-69,

 "

T

ire Air Pressure

"

NVH in DLN

 section.

NVH in DLN

 section.

NVH in F

AX and FSU sections.

NVH in RAX 

and RSU sections.

Ref

e

r to

 TI

RES in

 th

is cha

rt.

Ref

e

r to

 ROAD WHE

EL i

n

 t

h

is cha

rt.

NVH in F

AX, RAX

 section.

NVH in BR section.

NVH in ST section.

Possible cause and SUSPECTED PARTS

Imp

rop

er i

ns

ta

lla

ti

o

n,

 lo

os

en

es

s

Out

-of-ro

un

d

Un

ba

la

nc

e

Incorrect t

ire 

pressure

Uneven tire 

wear

Def

o

rm

ati

o

n

 o

r da

ma

ge

No

n-u

n

if

ormi

ty

In

co

rrec

t t

ire 

si

ze

PROPELLER SHAFT

DIFF

ERENTIAL

FRONT A

X

LE 

AND FRONT SUSP

ENSION

REAR A

X

LE 

AND REAR SUSP

ENSION

TI

RE

S

ROAD WHEE

LS

DRIVE SHAFT

BRAKE

STE

E

RING

Symptom

TIRES

Noise

×

×

×

×

×

×

×

×

×

×

×

×

×

×

×

Shake

×

×

×

×

×

×

×

×

×

×

×

×

×

×

Vibration

×

×

×

×

×

×

×

Shimmy

×

×

×

×

×

×

×

×

×

×

×

×

×

Judder

×

×

×

×

×

×

×

×

×

×

×

×

Poor quality ride or 
handling

×

×

×

×

×

×

×

×

×

×

ROAD 
WHEEL

Noise

×

×

×

×

×

×

×

×

×

×

×

×

Shake

×

×

×

×

×

×

×

×

×

×

×

Shimmy, Judder

×

×

×

×

×

×

×

×

×

Poor quality ride or 
handling

×

×

×

×

×

×

×

WT-62

< PERIODIC MAINTENANCE >

ROAD WHEEL

PERIODIC MAINTENANCE

ROAD WHEEL

Adjustment

INFOID:0000000006225545

BALANCING WHEELS (BONDING WEIGHT TYPE)

Preparation Before Adjustment

Using releasing agent, remove double-faced adhesive tape from the road wheel.

CAUTION:

• Be careful not to scratch the road wheel during removal.
• After removing double-faced adhesive tape, wipe clean traces of releasing agent from the road

wheel.

Wheel Balance Adjustment

If a tire balance machine has adhesion balance weight mode settings and drive-in weight mode setting, select
and adjust a drive-in weight mode suitable for road wheels.

1.

Set road wheel on tire balance machine using the center hole as a guide. Start the tire balance machine.

2.

When inner and outer unbalance values are shown on the tire balance machine indicator, multiply outer
unbalance value by 5/3 to determine balance weight that should be used. Select the outer balance weight
with a value closest to the calculated value above and install to the designated outer position of, or at the
designated angle in relation to the road wheel.

CAUTION:

• Never install the inner balance weight before installing the outer balance weight.
• Before installing the balance weight, always to clean the mating surface of the road wheel.

a.

Indicated unbalance value 

×

 5/3 = balance weight to be installed

Calculation example:
23 g (0.81 oz) 

×

 5/3 = 38.33 g (1.35 oz) 

⇒

 37.5 g (1.32 oz) bal-

ance weight (closer to calculated balance weight value)
NOTE:
Note that balance weight value must be closer to the calculated
balance weight value.
Example:
36.2 

⇒

 35 g (1.23 oz)

36.3 

⇒

 37.5 g (1.32 oz)

b.

Installed balance weight in the position.

SMA054D