Bridgestone B421 User Manual

Tire-Pressure Monitoring System

Sensor
Operation Guide

For truck and bus
For use only in Europe (model:B422) or
U.S.A. (model:B421)

What is a Tire-Pressure Monitoring System

Ti re -p re ss ur e mo ni to ri ng s ys te m is a n ad va nc ed s ys te m th at
measures the tire pressure and temperature with sensors mounted
inside the tire and enables vehicle management using the measured
data.

Notice to user

・

Th is product is d es ig ne d exclusively f or t ru ck s and buses.

Supported rim size is from 16 to 22.5 inches.

・

This product has two design for use within Europe and USA. It

cannot be used other country du e t o difference in radio wav e
regulations. Attention for product model number.

For Europe ...... model B422

For USA .......... model B421

・

Techn ica l knowle dge is nece ssa ry for sens or installa tion and

removal. Contact shops employing tire mechanic for installation
and removal.

・

Be sure to read and understand the content of the operation guide

before installing or removing.

・

Keep this guide in a safe place and refer to it as necessary.

?

Introduction

Tire-Pressure Monitoring System

For truck and bus
For use only in Europe (model:B4

22) or

U.S.A. (model:B4

21)

Sensor
Operation Guide

Notice to user

What is a Tire-Pressure Monitoring System?

Tire-pressu re m onit orin g sy stem is an a dvan ced syst em t hat
measures the tire pressure and temperature with senso rs mounted
inside the tire and enables vehicle management using the measured
data.

・

This pr oduc t i s de sign ed e xclu sive ly f or truc ks a nd b uses .

Supported rim size is from 16 to 22.5 inches.

・

This product h as two de sign for use wit hin Europ e and US A. It

cannot be used ot her cou ntry d ue to differ ence in radio wave
regulations. Attention for product model number.

For Europe......model B4

22

For USA..........model B4

21

・

Technical knowl edge i s nec essary for sensor insta llati on and

removal. Contact shops employi ng tire mec hanic for i nstallation
and removal.

・

Be sure to read and understand the content of the operation guide

before installing or removing.

・

Keep this guide in a safe place and refer to it as necessary.

This guide describes how to use the tire pressure monitoring system sensor (referred hereafter as "this product" or
"sensor") designed exclusively for trucks and buses. Please read and understand the content before using.

NOTE

Installation of this product requires knowledge of vehicle safety and tires. Installation should be performed by a
person with such experience.

About This Product

• By installing this product inside the tire (rim), it can measure the pressure and internal temperature and send the data
by radio wave.

• A separate hand reader is necessar y to read the data after installing this product. Hand reader can be purchased
separately from your dealer.

Package Content

Check that the following items are included in the package.

Items included in the sensor package

Mark color for location

For Europe: Model No.B422
Color: green

Sensor x 6 to 12

(depend on the number of tires)

For USA: Model No.B421
Color: blue

Valve mark x 6 to 12

(depend on the number of tires)

SAFETY PRECAUTIONSSENSOR INSTALLATIONMOUNTING TIRE ON RIMREMOVE THE SENSOR

TRANSPORTATION,

STORAGE & DISPOSAL

TROUBLESHOOTINGSERVICE & REPAIRSPECIFICATIONINDEXSENSOR WARRANTY INTRODUCTION

Mounting band

Mounting band (specified rim size) x 6 to 12

(depend on the number of tires)

Operation Guide

* Number of packages depend on the part number.

* Six mounting bands are contained in one box. The

remainder are packaged separately.

* The operation guide can be obtained separately from

your dealer. It is not included with the product.

1

About Tire-Pressure Monitoring System

Receiver

Sensor

Example of installing

4 receivers and 10 sensors

Receiver
Cable

Vehicle power supply

▪BAT
▪IGN
▪GND

ECU

Display

Warning lamp

Warning lamp

Display

ECU

Receiver

Sensor

Install on dashboard

Install inside cabi

n

Install on vehicle or fram

e

Install inside tire (rim

)

The tire-pressure monitoring system (hereafter referred to as "system" or "this system") is a system that monitors the tire
pressure and temperature using
This system is available as "Hand Reader Type" and "On-Board Type". Purchase the product that is appropriate for your

intended use.



Hand reader type

This system receives the radio wave from the sensor with a portable hand reader.
The radio wave from the sensor is received with the vehicle stopped. It cannot be used when moving.

<Equipment Configuration>

sensors mounted inside tires (rim).

Sensor Hand reader



On-board type

This system measure and monitors the radio wave from the sensor with a display and warning lamp mounted on the
dashboard.
When there is a tire problem, the display and warning lamps on the dashboard emit alarms to notify the driver. The tire
status can be monitored while moving.

<Equipment Configuration>

2

Operation Guide Combination

The following operation guides must be obtained depending on whether your system is a Hand reader type or On-board
type. Read the guide appropriate for your system.

Guide

Tire-Pressure Monitoring System

Sensor Operation Guide
(this document)

Tire-Pressure Monitoring System

On-Board Type Operation Guide

Tire-Pressure Monitoring System

Display Operation Guide

Tire-Pressure Monitoring System

Hand Reader Type Operation Guide

• This operation guide uses photographs to describe the installation procedure, but the supported rims and installation
method are not limited to those in the photograph.

• Unauthorized duplication or reprint of any part of this operation guide or in its entirety is prohibited.

• If this operation guide becomes smudged and unreadable, obtain a new one from your dealer.

• Contact your dealer if there is any misprint or missing page and for questions about its content.

Hand reader

type

 



On-board

type





Content

Describes sensor installation, rim installation
and removal, and precautions

Describes the installation, wiring, system setup,
and precautions of receiver, display, warning
lamp, and ECU

Describes the display operation method and
precautions

Describes the hand reader operation method
and precautions

Warranty and Disclaimer



Warranty

SAFETY PRECAUTIONSSENSOR INSTALLATIONMOUNTING TIRE ON RIMREMOVE THE SENSOR

TRANSPORTATION,

STORAGE & DISPOSAL

• This is a system that measures the tire pressure and temperature using sensors mounted inside tires (rim).
Bridgestone shall not be liable for any damage resulting from use of this product for other purposes or in combination
with other manufacturer's product.

• Do not disassemble or modify this product. Bridgestone shall not be liable for any damage resulting from disassembly
or modification of this product.

• Read the operation guide carefully and understand its content before using this system. Bridgestone shall not be liable
for any damage resulting from misuse of this product.

• Warranty period is 1 year from the date of purchase. Refer to the "Sensor Warranty Policy" (page 27) for the details of
the warranty.



Product specification limitations

• This product have two design for use within Europe and USA. It cannot be used other country due to difference in
radio wave regulations. Attention for product model number.

For Europe : model B422
For USA : model B421

• This system has no function to maintain the status of the tire itself in good condition.

• When using the On-Board Type, the radio wave from the sensor may be temporarily interrupted depending on whether
the vehicle is stopped, presence of radio frequency interference, or position of the tires. In such case, the display and
warning lamps may be temporarily disabled.

• Be sure to measure the tire pressure with a normal pressure gauge during periodic maintenance and when
refueling. Compare those results with the tire pressure displayed by this system and check that the system is
functioning properly.

TROUBLESHOOTINGSERVICE & REPAIRSPECIFICATIONINDEXSENSOR WARRANTY INTRODUCTION

3

Contents

Introduction .................................................................... 1

About This Product ..................................................

Package Content .....................................................

About Tire-Pressure Monitoring System .................

Operation Guide Combination ................................ 3

Warranty and Disclaimer .........................................

1
1
2

3

Safety Precautions ..................................................

1. Sensor Installation .......................................................

1-1

Marks and label .......................................... 8

1-2

Installation flow .......................................... 8

1-3

Required tools ........................................... 9

1-4

Mark the sensor usage start date .............. 9

1-5

Attach mounting band to rim .................... 10

1-6

Install the sensor ..................................... 10

1-7

Attach the valve mark ............................... 12

1-8

Enter in check sheet ................................. 12

1-9

For super single tire ................................. 12

2. Mounting tire on rim and Operation Verification ....... 13

2-1 Required tools ......................................... 13

2-2 Mounting tire on rim ............................... 13

2-3 Install the tire on the axle ......................... 15

3. Remove the Sensor ..................................................

3-1 Sensor removal flow ................................ 16

3-2 Required tools .......................................... 16

3-3 Remove the rim ........................................ 16

3-4 Remove the sensor from the rim ............. 18

4. Sensor Transportation, Storage, and Disposal .......... 19

4-1 Precaution during transportation .............. 19

4-2 Precaution during storage ........................ 19

4-3 Precaution during disposal ....................... 19

16

5

8

5. Troubleshooting .........................................................

5-1 No response from the sensor ................. 20

5-2 When the sensor is damaged .................. 20

6. Service and Repair ....................................................

6-1 Requesting repair ..................................... 21

6-2 Periodic Maintenance ............................... 22

6-3 Disposal of the product ............................ 22

6-4 Contact ..................................................... 22

7. Specification ..............................................................

Index .............................................................................

Sensor Warranty ...........................................................

20

21

23

24

25

4

Safety Precautions



Warning symbols

This guide uses the following symbols to describe items that you must observe in order to use the hand reader safely.
Read and observe these items carefully.

WARNING

CAUTION

NOTE



Pictograms

Indicates item that must be observed.

Indicates action that is prohibited.

Indicates danger of bodily harm.

Failure to observe this item may result in death or severe injury.

Failure to observe this item may result in minor injury or property damage.

Failure to observe this item may result in damage to the product.
This also describes items that you should keep in mind.

1. Sensor handling

WARNING

Failure to observe the following warning items may result in serious traffic accident due to tire damage or erroneous
air pressure detection.

• This product is designed exclusively for trucks and buses.
Supported rim size is from 16 to 22.5 inches.
Do not use it on other vehicles or for other purpose.

• This product have two design for use within Europe and USA. It cannot be used other country due to difference in
radio wave regulations. Attention for product model number.

For Europe : model H212
For USA : model H211

• Do not disassemble, modify, or repair the sensor.

This can cause sensor dropout, battery heating or ignition.
Note that the sensor battery is not replaceable. When the battery life has expired, assume that the life of the entire

product including electrical component has expired.

• Do not leave sensor with expired battery inside the tire for an extended period.

• Be sure to measure the tire pressure with a normal pressure gauge during periodic maintenance. Compare those
results with the tire pressure displayed by this system and check that the system is functioning properly.

SENSOR INSTALLATIONMOUNTING TIRE ON RIMREMOVE THE SENSOR

TRANSPORTATION,

STORAGE & DISPOSAL

TROUBLESHOOTINGSERVICE & REPAIRSPECIFICATIONINDEXSENSOR WARRANTY INTRODUCTIONSAFETY PRECAUTIONS

5

2. About general sensor installation and removal

WARNING

Failure to observe the following warning items may result in serious traffic accident due to tire damage or detection
of erroneous

• Install or uninstall the sensor at a tire shop.

• Refer to the instructions in the operation guide when installing or uninstalling the sensor.

• Use genuine mounting band to secure the sensor. Using unauthorized band can cause the band to break during
vehicle movement resulting in rim or tire damage.

• Be sure to use new mounting band matching the wheel diameter and rim size. Using mounting band that is too
long, too short, or previously used can cause the sensor or band to drop out during vehicle movement resulting in
rim or tire damage.

• If the width of the well at the center of the rim is extremely narrow causing the sensor to touch the wall of the well
or if the well is extremely shallow causing the sensor to protrude from the well, contact your authorized dealer or
Bridgestone customer service and check that the sensor can be installed beforehand.

• Be sure to attach a white plastic "valve mark" on the valve of the tire with sensor installed.

• Be careful not to damage the sensor or the mounting band when replacing the tire. The mounting band can become
loose and drop out during motion when it comes in contact with tire lever or tire changer. Tires with white plastic
"valve mark" on the valve are tires with sensor installed near the valve. Be careful with their handling.

• Normal "mounting tire on rim" and "removing tire from rim" involves equipment such as tire changer and can cause
tire damage. Observe the general precautions for "mounting tire on rim" and "de-mounting tire on rim" described in
the equipment manual.

• If the tire is improperly rimmed, the tire can burst and fly apart when inflating. Be sure to inflate the tire inside a
safety enclosure.

• This guide describes the precautions during installation of this product, but it is not possible to assume and
describe all hazards. Be very careful when performing these tasks.

air pressure.

6

Notices for using in USA

This device complies with Part 15 of the FCC Rules and IC RSS-Gen. Operation is subject to the following two conditions:
(1) This device may not cause harmful interference, and (2) this device must accept any interference received, including
interference that may cause undesired operation.
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of
the FCC Rules and IC RSS-Gen.
These limits are designed to provide reasonable protection against harmful interference in a residential installation. This
equipment generates use and can radiate radio frequency energy and, if not installed and used in accordance with
instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference
will not occur in a particular installation. If this equipment does cause harmful interference to radio or television
reception, which can be determined by turning the equipment off and on, the user is encouraged to correct the
interference by one or more of the following measures:

- Reorient or relocate the receiving antenna.

- Increase the separation between the equipment and receiver.

- Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.

- Consult the dealer or an experienced radio/TV technician for help.

WARNING

Changes or modifications not expressly approved by the manufacturer for compliance could void the user’s
authority to operate the equipment.

WARNING for using in Europe

INTRODUCTIONSENSOR INSTALLATIONMOUNTING TIRE ON RIMREMOVE THE SENSOR

We, the manufacturer (BRIDGESTONE CORPORATION) hereby declare that this equipment (TPMS), model B422 is in
compliance with the essential equirements and other relevant provisions of Directive 1999/5/EC.

0891

BRIDGESTONE CORPORATION
Model No.: B422

TCAM agreed that it is sufficient to add the following statement as part of the user information:

English

Finnish

Dutch

French

Swedish

Danish

Hereby,
essential requirements and other relevant provisions of Directive 1999/5/EC.

(BRIDGESTONE CORPORATION) vakuuttaa täten että (SENSOR:B422) tyyppinen laite on direktiivin
1999/5/EY oleellisten vaatimusten ja sitä koskevien direktiivin muiden ehtojen mukainen.

Hierbij verklaart (BRIDGESTONE CORPORATION) dat het toestel (SENSOR:B422) in overeenstemming
is met de essentiële eisen en de andere relevante bepalingen van richtlijn 1999/5/EG

Bij deze verklaart (BRIDGESTONE CORPORATION) dat deze (SENSOR:B422) voldoet aan de
essentiële eisen en aan de overige relevante bepalingen van Richtlijn 1999/5/EC.

Par la présente (BRIDGESTONE CORPORATION) déclare que (SENSOR:B422) est conforme aux
exigences essentielles et aux autres dispositions pertinentes de la directive 1999/5/CE

Par la présente, (BRIDGESTONE CORPORATION) déclare que ce (SENSOR:B422) est conforme aux
exigences essentielles et aux autres dispositions de la directive 1999/5/CE qui lui sont applicables

Härmed intygar (BRIDGESTONE CORPORATION) att denna (SENSOR:B422) står I överensstämmelse
med de väsentliga egenskapskrav och övriga relevanta bestämmelser som framgår av direktiv 1999/5/
EG.

Undertegnede (BRIDGESTONE CORPORATION) erklærer herved, at følgende udstyr (SENSOR:B422)
overholder de væsentlige krav og øvrige relevante krav i direktiv 1999/5/EF

(BRIDGESTONE CORPORATION), declares that this (SENSOR:B422) is in compliance with the

TRANSPORTATION,

STORAGE & DISPOSAL

TROUBLESHOOTINGSERVICE & REPAIRSPECIFICATIONINDEXSENSOR WARRANTY SAFETY PRECAUTIONS

7

German

Greek

Italian

Spanish

Portuguese

Czech

Estonia

Latvia

Lithuania

Hungary

Malta

Poland

Slovenia

Slovakia

Bulgaria

Romania

Turkey

Hiermit erklärt (BRIDGESTONE CORPORATION), dass sich dieser/diese/dieses (SENSOR:B422) in
Übereinstimmung mit den grundlegenden Anforderungen und den anderen relevanten Vorschriften der
Richtlinie 1999/5/EG befindet”. (BMWi)

Hiermit erklärt (BRIDGESTONE CORPORATION) die Übereinstimmung des Gerätes (SENSOR:B422)
mit den grundlegenden Anforderungen und den anderen relevanten Festlegungen der Richtlinie 1999/5/
EG. (Wien)

ΜΕ ΤΗΝ ΠΑΡΟΥΣΑ (BRIDGESTONE CORPORATION) ΔΗΛΩΝΕΙ ΟΤΙ (SENSOR:B422)
ΣΥΜΜΟΡΦΩΝΕΤΑΙ
ΟΔΗΓΙΑΣ

1999/5/ΕΚ

ΠΡΟΣ ΤΙΣ ΟΥΣΙΩΔΕΙΣ ΑΠΑΙΤΗΣΕΙΣ ΚΑΙ ΤΙΣ ΛΟΙΠΕΣ ΣΧΕΤΙΚΕΣ ΔΙΑΤΑΞΕΙΣ ΤΗΣ

Con la presente (BRIDGESTONE CORPORATION) dichiara che questo (SENSOR:B422) è conforme ai
requisiti essenziali ed alle altre disposizioni pertinenti stabilite dalla direttiva 1999/5/CE.

Por medio de la presente (BRIDGESTONE CORPORATION) declara que el (SENSOR:B422) cumple
con los requisitos esenciales y cualesquiera otras disposiciones aplicables o exigibles de la Directiva
1999/5/CE

(BRIDGESTONE CORPORATION) declara que este (SENSOR:B422) está conforme com os requisitos
essenciais e outras disposições da Directiva 1999/5/CE.

Společnost (BRIDGESTONE CORPORATION) tímto prohlašuje, že (SENSOR:B422) splňuje základní
požadavky a další příslušné ustanovení Direktivy 1999/5/EC.

Sellega kinnitab (BRIDGESTONE CORPORATION), et see (SENSOR

:B422) vastab direktiivi 1999/5/EC

põhilistele nõudmistele ja muudele asjakohastele määrustele.
Ar šo, (BRIDGESTONE CORPORATION), apstiprina, ka (SENSOR:B422) atbilst Direktīvas 1999/5/EK

galvenajām prasībām un citiem tās nosacījumiem.
Šiuo, (BRIDGESTONE CORPORATION), pareiškia, kad šis (SENSOR

:B422) atitinka pagrindinius

Direktyvos 1999/5/EB reikalavimus ir kitas svarbias nuostatas.
Alulírott, (BRIDGESTONE CORPORATION), kijelenti, hogy a jelen (SENSOR:B422) megfelel az 1999/5/

EC irányelvben meghatározott alapvető követelményeknek és egyéb vonatkozó előírásoknak.
Hawnhekk, (BRIDGESTONE CORPORATION), tiddikjara li (SENSOR

:B422) josserva l-ħtiġijiet essenzjali

u dispożizzjonijiet relevanti oħra tad-Direttiva 1995/5/KE.
(BRIDGESTONE CORPORATION) niniejszym oświadcza, że (SENSOR:B422) spełnia zasadnicze

wymogi oraz inne istotne postanowienia dyrektywy 1999/5/EC.
S tem (BRIDGESTONE CORPORATION) izjavlja, da je ta (SENSOR

:B422) v skladu z osnovnimi

zahtevami in ostalimi ustreznimi predpisi Direktive 1999/5/EC.
Spoločnosť (BRIDGESTONE CORPORATION) týmto vyhlasuje, že (SENSOR:B422) spĺňa základné

požiadavky a ďalšie príslušné ustanovenia Direktívy 1999/5/EC.
С настоящия документ (BRIDGESTONE CORPORATION)

декларира, че (SENSOR:B422) е в

съгласие с основните изисквания и съответните постановления на Директива 1999/5/ЕС.
Prin prezenta, (BRIDGESTONE CORPORATION) declară că acest (SENSOR:B422) este conform cu

cerinţele principale şi cu celelalte prevederi relevante ale Directivei 1999/5/EC.
İşbu belge ile (BRIDGESTONE CORPORATION), bu (SENSOR:B422)’in 1995/5/EC Yönetmeliği esas

gereksinimlerine ve diğer şartlarına uygun olduğunu beyan eder.

8