™
SmarT ire Trailer-Link
Tire Pressure Monitoring System
TPMS
Operator’s Manual
This booklet contains important operational and safety
information that benets you and subsequent owners.
Sources of Additional Information about
your SmarTire
®
System by Bendix™ CVS
Consult the vehicle manufacturer’s documentation.
Visit www.bendix.com for free downloads of these
publications from the Literature Center at www.bendix.com.
BW2799 SmarTire Tire Pressure Monitoring System
(TPMS) Operator’s Manual
BW2809 SmarTire TPMS Hand Tool Manual
BW2820 SmarTire Low Frequency (LF) Tool Users Manual
BS2822 SmarTire TPMS Walk Around Card
or
Contact the Bendix Tech Team at
techteam@bendix.com or
1-800-AIR-BRAKE (1-800-247-2725, option 2).
Representatives are available
Mon. - Fri. 8:00 a.m. to 6:00 p.m. ET.
The trademarks used in this document, including Bendix™, are United States
trademarks owned by or licensed to Bendix Commercial Vehicle Systems LLC.
2
About the SmarTire
®
TPMS and SmarTire Trailer-Link™ TPMS 5
Section A - System Overview 7
1 0 System Overview 7
1 1 System Components 7
1 2 Maintenance Tool 7
INDEX
1 3 How Does The SmarTire Trailer-Link
™
TPMS System Work? 8
1 4 Fundamentally, Why Is Temperature Monitoring Important? 9
2 0 Tire Maintenance 12
Section B - System Installation – Tire Sensors 14
3 0 System Installation: Tire Sensors
14
3 1 Sensor Overview 14
3 2 Tools Required 14
3 3 Tire Sensor Installation 15
3 4 Re-mounting Tires After A Sensor Has Been Installed 16
3 5 Removing A Tire That Has A SmarTire
®
Sensor Installed 20
3.6 Tire Sensor Specications 22
Section C: System Installation – Components and Programming 23
4 0 Installing The SmarTire Trailer-Link System 23
4.1 Conguring & Customizing Your SmarTire Trailer-Link System 27
4 2 SmarTire Trailer-Link Axle CIP Adjustment Instructions 28
Section D: SmarTire Trailer-Link Display Options 34
5 0 Trailer Information Display Options 34
5 1 Tractor SmarTire Dash Display
34
5 2 Tractor SmarTire Dash Display Alerts 35
5 3 Trailer-Link To SmarTire Dash Display Link-Up Procedure 35
5 4 Trailer Lamp Blink Codes 35
Section E: Additional Component Details 37
6 0 Trailer-Link System Component Details 37
6.1 Trailer-Link Module Specications 37
Section F: Troubleshooting 41
7 0 Troubleshooting Guide 41
7.1 SmarTire Gauge Display And Trailer-Link Module Q&A 41
7.2 SmarTire System Q&A
46
7 3 Diagnosing A Defective, Missing, Or Misplaced Sensor 46
7 4 SmarTire Hand Tool Troubleshooting 47
Appendix 1: Replacement Parts 48
8 0 Replacement Parts 48
Appendix 2: System Scope Of Use & Alerts 49
9 0 System Scope Of Use And Alerts 49
9 1 System Installation And Usage 49
9 2 Use Of Chemicals 49
9 3 Reacting To Alerts
49
9 4 FCC Notice 50
3
GENERAL SAFETY GUIDELINES
brakes and always block the wheels. Always wear
WARNING! PLEASE READ AND
FOLLOW THESE INSTRUCTIONS
TO AVOID PERSONAL INJURY OR DEATH:
When working on or around a vehicle, the following
guidelines should be observed AT ALL TIMES:
▲ Park the vehicle on a level surface, apply the parking
personal protection equipment.
▲ Stop the engine and remove the ignition key when
working under or around the vehicle. When working
in the engine com par tment , the engine sho uld be shut
off and the ignition key should be removed. Where
circumstances require that the engine be in operation,
EXT R E ME CAU T I ON sh ou l d be us ed to pre ven t per son a l
injury resulting from contact with moving, rotating,
leaking, heated or electrically-charged components.
▲ Do not attempt to install, remove, disassemble or
assemble a component until you have read, and
thoroughly understand, the recommended procedures.
Use only the proper tools and observe all precautions
pertaining to use of those tools.
▲ If th e wor k is be i ng pe r f o rme d on th e veh i cle ’s ai r br a ke
sy ste m , or an y aux i lia r y pres s uri zed ai r sy ste m s , ma k e
certain to drain the air pressure from all reservoirs
before beginning ANY wor k on th e veh icl e . If th e ve hic l e
is equipped with a Bendix
®
Bendix
DRM™ dryer reservoir module, or a Bendix
®
AD-IS® air dryer system, a
AD-9si® air dryer, be sure to drain the purge reser voir.
▲
Following the vehicle manufacturer’s recommended
procedures, deactivate the electrical system in a manner
that safely removes all electrical power from the vehicle
▲ Never exceed manufacturer’s recommended pressures.
▲ Never connect or disconnect a hose or lin e cont aining
pressure; it may whip. Never remove a component or
plug unless you are certain all system pressure has
been depleted.
▲ Use only genuine Bendix
®
brand replacement parts,
components and kits. Replacement hardware, tubing,
hose, t tings, etc. must be of equivalent size, type
and strength as original equipment and be designed
speci cally for such applications and systems.
▲ Components with stripped threads or damaged par ts
should be replaced rather than repaired. Do not
attempt repairs requiring machining or welding unless
speci cally stated and approved by the vehicle and
component manufacturer.
▲ Pr i or to ret u r nin g the vehi c le to ser vic e, ma ke ce r t ai n all
componen ts and systems are restore d t o their proper
operating condition.
▲ For vehicles with Automatic Traction Control (ATC),
the ATC function must be disabled (ATC indicator
lamp should be ON) prior to per forming any vehicle
ma int e na n ce wh ere one or mor e whe e ls on a dri ve ax l e
are lifted off the ground and moving.
▲ The power MUST be temporarily disconnected
from the radar sensor whenever any tests USING A
DYNAMOMETER are conducted on a Bendix
Advanced
™
-equipped vehicle.
▲ You should consult the vehicle manufacturer's
operating and service manuals, and any related
literature, in conjunction with the Guidelines above.
4
®
Wingman
®
.
®
About the SmarTire® Tire Pressure Monitoring
System (TPMS) and SmarTire Trailer-Link™ TPMS
Full SmarTire® TPMS System Overview
Thank you for purchasing the Smar Tire T railer-Link™ Tire Pressure Monitoring
System (TPMS) by Bendix CVS. With SmarTire Trailer -Link TPMS onboard,
your vehicle is equipped w ith a wireless commun ication networ k allowing
seamless integration of wireless tire pressure sensing technology.
The SmarTire Trailer-Link TPMS system is an advanced tire pressure
monitoring system specically designed for commercial vehicle trailers. The
system monitors the pres sure and temperature of eac h trailer tire in or der
to provide real-t ime, tire status i nformat ion and to war n the dri ver of a tire related problem before it becomes dangerous.
Bendix SmarTire System Advantages
● Extends tire life;
● Reduces maintenance costs and time;
● Helps ma xi m ize fuel economy by ensuring that tir e s ar e pr oper ly inated;
● Reduces trailer downtime; and
● Reduces accident risk caused by a tire blowout or tire re.
System Features
● Tempe rature co mpensated al er ts: Know w hen your tires a re at risk no
matter how long you’ve been driving;
● Real-time tra iler tire information displayed on the d ash whenever the
tractor is equipped with the SmarTire TPMS system by Bendix CVS;
● Tire alert s provide instant visual warning of a tire proble m using the
tractor’s dash display or a trailer lamp;
● There are three t ypes of tire aler ts: Pressure Deviati on Aler t, Critic al
Low Pressure Alert, and High Temperature Alert;
● The SmarTire Trailer-Link system data can be sent through the tractor’s
J1939 communication network via the tractor-mounted SmarTire TPMS
for seamless vehicle integration; and
● The trailer tire data can be broadcast on the J1939 communication
network and accessed by telematics devices for back-ofce reporting
of tire data.
5
IMPORTANT NOTICE: PLEASE READ
To prevent sensor dam age, when mounting and dismounting tires th at
have SmarTire
®
TPMS tire sensors, be sure that the maintenance facility
is aware that a tire pressure monitoring system is installed.
If any rims are reloc ated or replaced, be sur e to follow the SmarTire by
Bendix system guidelines to permit the system to re-learn the tire sensor
positions.
To moni to r your trailer tires with your exist in g S m a rTire by Bendix tractor
ECU, you must ensure that the SmarTire Trailer-Link
™
enable function
is set to ON in the SmarTire TPMS system tractor-mounted ECU (par t
number 200.0216).
Additionally, for tractors equipped with ECU part number 200.0184, in order
for the ECU to be able to communicate with the SmarTire T railer-Link ECU,
the ECU rmware MUST BE updated to new rmware. For instructions
on performing this update, please contact your Bendix account manager
or call 1-800 AIR-BRAKE (1-800-247-2725), option 2.
6
Section A - System Overview
1.0 System Overview
1.1 System Components
Maintenance
Hand tool
Tire Sensors
and Cradles
Harnesses
Stainless Steel
Tire Straps
Figure 1 - System Components and Hand Tool
ECU. The Electronic C ontrol Uni t (ECU) of the SmarTire Trailer-Link™ Tire
Pressure Monitoring System receives data transmissions from individual tire
sensors mounted on each trailer wheel. The information received is compared
to user-dened settings. An alert is triggered if the system detects that a tire
is under-inated and/or above expected temperatures.
Where the tractor is equipped with Bendix
and alert s are communicated to a dash displ ay along with the tractor tire
information. A lter nately, where the tractor i s not equipp ed wit h a SmarTire
TPMS system, the Trailer-Link system alerts the dr iver using an optional
trailer-mounted lamp.
Sensors. De signed for the h arsh environment of a c ommercial t ruck tire,
each tire sensor is mounted in a break-away cradle for extra protection.
The tire sensor measur es internal tire pres sure and temperature ever y 12
(twelve) seconds and transmits data every three to ve minutes. If the system
detects a pressure c hange of 3 PSI (0.20 6 bar) or greater, it does not wait
until the next transmission, but will transmit the data immediately.
Sensor Straps. Sensors are mounted to th e surface of the rim usin g a
stainless steel strap, a reliable and universal method of sensor installation.
Harness. Designed to not require a sepa rate power supply, the harness
supplies trailer ABS system power to the SmarTire T railer-Link Tire Pressure
Monitoring System ECU.
1.2 Maintenance Tool
Maintaining tires in the yard is just as important as real-time tire information
for the driver, but many TPMS systems don’t include functi onality to help
yard maintenance personnel. The SmarTire universal hand tool acts like an
“electronic billy- club” allowing maintenance personnel to wirelessly ‘ping’
each tire to measure its pressure and temperature. The SmarTire hand tool
reduces diagnost ic time and helps keep every tir e rolling safely and costeffectively. (For the Maintenance Tool manual, see BW2809.)
7
Trailer-Link ECU
™
SmarTire® TPMS, the data
1.3 How Does The SmarTire TrailerLink™ TPMS System Work?
Full SmarTire® TPMS System Overview
1. The SmarTire Trailer-Link™ ECU creates a wireless bubble around the
trailer, allowing it to sense and transfer trailer tire data to a SmarTire®equipped tractor.
2. Tire sensors mounted on each trailer wheel measure tire pressure and
temperature every twelve (12) seconds and wirelessly transmit tire data
every three to ve minutes.
3. Industrially-designed for the rugged requirements of a commercial trailer
chassis, the SmarTire T railer-Link ECU can monitor up to eight (8) wheel
positions when linked with a tractor with SmarTire TPMS, and more
when applied as a stand alone trailer TPMS. The total number of tires
monitored on both the tractor and trailer cannot exceed twenty.
4. When the tractor connects up to the trailer, the wireless transmissions of
the SmarTire Trailer-Link ECU will link up to the SmarTire tractor ECU.
Once the link up is achieved, the tractor SmarTire display will restart and
add the additional trailer axles to the tractor display . The new axles will
be indicated as trailer axles by showing a “T” in front of the axle number,
e.g. T1, T2, etc.
5. Real-time tire pressure and temperature information is available to the
driver on demand via the SmarTire TPMS tractor display, if equipped.
An easy-to-read and simple-to-use interactive gauge that provides realtime tire status information, the SmarTire display will alert the driver to a
low pressure or high temperature trailer tire condition before it becomes
dangerous.
6. Trailer tires can also be monitored using the system as a stand-alone
application connected to an optional trailer-mounted alert lamp.
7. The SmarTire maintenance hand tool is used to check trailer tire
pressures and temperatures during maintenance inspections. It can
also be connected directly to the SmarTire Trailer-Link ECU to set the
trailer axle Cold Ination Parameters (CIPs) and to congure trailer tire
sensor IDs. The SmarTire maintenance hand tool improves ination
accuracy and reduces diagnostic time in order to keep every tire rolling
cost-effectively. Please refer to Section 3.2 of this manual or BW2809
for detailed information on programming the SmarTire T railer-Link ECU
with the maintenance hand tool.
8
1.4 Fundamentally, Why Is Temperature
Monitoring Important?
The Pressure/Temperature Relationship
Tire manufacturers specify that tire pressures should be checked and adjusted
when a tire is “col d”, but most people may not know why, or even what a
“cold tire” is. The temperature of a tire actually has a signicant impact on
its ination pressure.
According to tire manufacturers, a tire is c onsidered to be “cold” when
its temperature is 65°F (18°C). The ination values provided by vehicle
manufacturers, eet maintenance personnel, or industry-published load
ination tables are called ‘Cold Ination Pressures’ (CIP) because they
represent the correct amount of pressure a tire should be inated to when
it is “cold”. The reason that tires have cold ination pressures set at
specic temperatures is because a tire’s pressure will change relative to its
temperature.
Air naturally expands when h eated and contracts when c ooled. Inside a
contained vesse l such as a tire, this expansion and c ontraction causes a
change in contained air pressure. As a tire heats up, its pressure will naturally
increase and as it cools down, its pressure will naturally decrease.
For example, a tire inated to a CIP of 105 PSI at 65°F will increase in pressure
to 125 PSI at 1 52°F and decrease in pressure to 97 PSI at 32°F. The Smar Tire
Trailer-Link
and pressure as part of normal operation and adapts accordingly to provide
more accurate information while helping to prevent false alerts.
™
tire monitoring system considers these changes in temperature
Tire manufacturers never recommend inating a tire to less than the specied
cold ination pressure. In extreme cases, the beads of a commercial tire
can unseat if its pressure gets too low resulting in a catastrophic tire failure.
Always refer to the vehicle manuf acturer’s recomme ndations for minimum
cold ination pressures.
9
The charts below illustrate the equivalent ination values for a series of Cold
Ination Pressures (CIPs) at various temperatures. The temperature values
represent the temperature of the air contained inside the tire. This temperature
can be estimated for a cold tire using the outside, ambient temperature.
Chart 1
Chart 2
The c h a r ts above are to be u s e d as a gu i d e on l y. Al ways refer to th e
tire and/or vehicle manufacturer’s recommendations for minimum CIPs.
10
Thermal Equilibrium
As a vehicle moves, its tire s naturally heat up due to f rict ion fro m the road
and the exing of its side-walls. Weight, vehicle speed and a tire’s starting
ination pressure all have an impact on how much, and how quickly, heat
is generated.
As the tire generate s heat, its pressure incre ases, causing a reducti on in
side-wall exing. Less side-wall exing and road resistance, combined with
air rushing past the t ire as the vehicle moves, effectively c ounteract the
conditions that cause the tire to heat up. As a result, the temperature increase
tapers off until the tire reaches a point of balance called “thermal equilibrium.”
Tire thermal equilibrium is the point where the heat being generated is
equal to the heat being dis sipated. Tires are design ed with the pr inciples
of temperature and pressu re in mind in order for them to ac hieve thermal
equilibrium. Once a properly inated tire reaches thermal equilibrium, it will
operate at its peak; providi ng the best per forman ce, handling, tire life and
fuel economy.
SmarTire Trailer-Link
™
TPMS Temperature Compensation
Since a tire’s contained air pressure naturally increases as a vehicle moves,
it can be difcult to tell if a hot tire is under-inated. Without some form of
temperature compensation, a hot tire that is under-inated might appear to
be ne because its contained air pressure is at, or above, its Cold Ination
Pressure (CIP).
For example, a tire correctly inated to a CIP of 105 PSI at 65°F will reach
thermal equilibrium when its temperature increases to 152°F and its pressure
increases to 125 PSI. A tire starting at 95 PSI at 65°F (10 PSI under inated)
would have to reach 202°F for it to reach thermal equilibrium (12 5 PSI). The
tire will then be running 50°F hotter than it should be, causing more tire wear
and the potential for a catastrophic failure or tire re.
When checked using a handheld gauge or a tire monitoring system that does
not measure operating temperature, this 10 PSI under-inated tire can appear
to be normal. When equi pped with tire s ensors that m ount inside the tire,
SmarTire Trailer-Link TPMS m easures both tire p ressure and temper ature
in order to provide “Temperature Compensated” pres sure deviation values
and alerts. By measuring the operating temperature of a tire and comparing
it to the CIP value programm ed into the system, the SmarTire Trailer-Link
system will know what a tire’s pressure is suppose d to be in relation to its
operating temperature.
The system is able to warn the driver of an under-inated tire even if t hat
tire’s actual contained air pressure is at — or above — its CIP.
11
The advantages of temperature compensation are even more dramatic when
a tire has a slow leak. A tire t hat is constantly l osing pressure wi ll not be
able to reach ther mal equilibr ium bec ause the c ontained ai r simply ca nnot
expand enough to generate the required pressure, regardless of how hot the
tire becomes. Since the leak is slow, the tire may appear over an extended
period of time to be properly inated when it is actually dangerously underinated and operating well above its temperature capacity.
As air leaks from the tire, increased side-wall exing and rolling resistance
cause the tire’s temperature and pressure to increase. The pressure increase
will soon plateau and beg in to slowly d ecre ase while t he tire’s temperature
continues to increase. Eventually , the tire will become so hot that its structure
will degrade, and then fail in the form of a blow-out and/or tire re.
2.0 Tire Maintenance
Proper tire maintenance is critically impor tant for keeping tires rolling
smoothly. When properly maintained and inated, tires will provide shorter
stopping distances, better vehicle handling in emergency situations, improved
fuel economy and increased tire life.
Maintenance Tips for Long Tire Life:
● Keep tires properly inated at all times.
● Visually inspect tires for injuries prior to each trip.
● Match dual tires for size and keep pressures within 5 PSI (0.344 bar).
● Re-tread tire before wear causes excessive belt damage or fatigue.
12
IMPO R TA NT
READ THESE INSTRUCTIONS PRIOR TO INSTALLATION
™
This SmartTire Trailer-Link
TPMS kit is pre-programmed and ready to use,
subject to your application:
● The sensors have been PRE-ASSIGNED TO WHEEL POSITIONS and
are identied on each unit with a position label (P1, P2, P3, etc.) – install
the sensors as shown in Figure 1.
● Default values have been assigned to each axle for the following
(depending on kit conguration):
◊ Cold Ination Pressure (CIP) – preset to 100 PSI
◊ First Alert Level (FAL) – preset to ±15% from expected (temperature
compensated)
◊ Second Alert Level (SAL) – preset to -20% from CIP
◊ High temperature alert – 185°F (85°C)
Figure 2
13
Section B - System Installation – Tire Sensors
3.0 System Installation: Tire Sensors
3.1 Sensor Overview
The SmarTire® TPMS sensor monitors tire pressure and temperature every
twelve (12) seconds and transmits tire data every three (3) to ve (5) minutes.
If a pressure change of 3 PSI is detected, the sensor will not wait for the next
regular transmission and will transmit tire data immediately. The sensor has
an estimated battery life of ve (5) years.
3.1.1 Break Away Cradle
If proper care is n ot taken when removing or inst alling a tire on a rim th at
has a tire sensor installed, damage can occur. Each SmarTire tire sensor is
conveniently mounted in a break-away cradle so that if damage accidentally
occurs, the inexpensive cradle is broken instead of the sensor.
IMPORTANT NOTICE: PLEASE READ
Please read this section carefully and follow each step precisely to
ensure that you do not damage a sensor and that the sensors are
installed in the correct, pre-programmed locations.
SmarTire tire sensors can be broken when mounting and dismounting
a tire unless specic instructions are followed. If tire work is done
by an unauthorized facility, please let them know that a tire pressure
monitoring system is installed on the vehicle before they remove a tire
from a wheel.
Exercise caution and take precautions when cutting the steel strap
(See Section 3.3 step 2.). Beware of potential sharp edges!
Figure 3
3.2 Tools Required
Installing the Sensors
1. 5/16" or 8 mm hexagon driver
2. Metal cutter
3. Torque wrench
14
4. Tire changing equipment
5. Tire balancing equipment
3.3 Tire Sensor Installation
1. Remove the wheel from the vehicle and then remove the tire.
2. Wrap the strap around the rim in the lowest point of the drop center well
and mark it 1” (2.5 cm) past the worm gear. Cut the strap at the mark.
Excess strap MUST be removed or it will break-off and damage the tire.
3. Slide on the sensor.
1"
Figure 4
4. With the strap and sensor positioned in
the lowest point of the center well, feed
the end of the strap into the worm gear
and pull it tight. Orient the sensor so that
it is positioned at the valve with the worm
gear 4" (10 cm) away from the edge of
the sensor. The sensor MUST always
be installed at the valve in order to know
its approximate location after the tire has
been mounted.
Figure 5
5. Tighten the strap using a 5/16" (8 mm) hexagon driver until the sensor
can not be moved. Reference torque: 35 in-lbs (4 Nm).
CAUTION: Do not over tighten the strap.
6. Indicate the location of the sensor by
applying the supplied rim label to a
clean and dry location on the rim.
Figure 6 - The actual
label design may vary
15
3.4 Re-mounting Tires After A Sensor Has Been Installed
Please read this section carefully and follow each step precisely to ensure you
do not damage the sensor when mounting the tire. If steps are not taken to
avoid the sensor located in the drop center well of the rim, it can be damaged
by tire beads as the tire is mounted.
3.4.1 Internal Tire Sensor Servicing
®
SmarTire
during the mounting or de-mounting process. Each sensor is mounted inside
a break-away cradle that is designed to absorb the impact of damage during
the tire mounting / de-mounting process. If damage occurs, the inexpensive
cradle will break instead of the tire sensor.
If a sensor cradle is da maged, it along with the mounting strap must be
replaced. Carefully remove the tire sensor from the damaged cradle, re-insert
it into a new cradle (Bendix par t number 26 4.00228 N), and then continue
the mounting process.
TPMS tire sensors are designed to be serviceable if damage occurs
16
3.4.2 Re-Mounting Tires Using Tire Irons
To avoid damagin g the sensor, simply mount the tire e nsuring t hat the last
part of the bead to slip over the ange happens directly at the sensor. Start
at one end of the tire and work towards the opposite end with the tire oriented
so that the beads are rst pushed under the rim ange directly opposite the
sensor (1) and then worked over the ange toward the sensor (2). The bead
will nally slip over the rim ange at the sensor without contacting it (3).
Repeat for the remaining bead.
1 2 3
Figure 7
17
3.4.3 Re-Mounting Commercial Tires
Using a Vertical Tire Machine
1. Place the rim on the machine so that the rim ange clamp is at the
12 o’clock position, the sensor is at the 2 o’clock position and the
mounting hook is at the 8 o’clock position.
Rim Flange Clamp
Sensor
Figure 8
2. Advance the wheel clockwise to pass both beads over the rim ange
simultaneously . The tire should mount onto the wheel without contacting
the sensor.
Mounting
Hook
Figure 9
3.4.4 Re-Mounting Commercial Vehicle Tires
Using A Center Post Tire Machine
1. Place the rim on the machine with the mounting shoe at the 9 o’clock
position and the sensor at the 5 o’clock position.
Mounting
Shoe
Figure 10
18
Sensor
2. Place the tire on the rim with the bottom bead under the ange at the
6 o’clock position with the mounting shoe at the 9 o’clock position.
3. Advance the mounting shoe clockwise to pass the lower bead over the
rim ange.
4. Return the mounting shoe to the 9 o’clock position, depress the upper
bead under the rim ange at the 6 o’clock position and advance the
mounting shoe clockwise until the second bead is completely mounted.
3.4.5 Dual Wheel Assemblies
In order to accommodate SmarTire® TPMS system programming, dual wheels
MUST always be mounted on the vehicle with the valve stems 180° apart or
as close as possible to opposite each other.
Inboard TireOutboard Tire
Sensor
Valve Stem
Valve Stem
Sensor
Figure 11
3.4.6 Re-Mounting Light Truck Tires Using a Tire Machine
1. Place the rim on the turn-table of a tire mounting machine with the sensor
at the 7 o’clock position and the mount head at the 12 o’clock position.
2. Starting from the mount head, manually depress the bottom bead of the
lubricated tire on the rim and into the drop center well until its pinch point
is approximately 3” (7.5 cm) before the sensor.
(Note: The pinch point, also known as a “traction point” is the position
on the rim where the tire bead encounters resistance when trying to slip
over the rim ange.)
Figure 12
19
3. Advance the turn-table clockwise using the mount head to guide the rest
of the bottom bead over the ange and on to the rim. When assembled
correctly, the bead will slip over the ange without contacting the sensor.
4. Repeat for the top bead. Do not allow the pinch point to slip as the rim
rotates or the sensor could be broken.
5. Finish the tire installation as normal (seat the beads, install the valve
core, inate to the recommended cold ination pressure, balance tires
and mount wheels in specied locations).
3.5 Removing A Tire That Has A
SmarTire
This section ou tlines the c orr ect metho ds for removing a ti re from a whe el
that is equipped with a S marTire® sensor. Instructions for usin g both tire
irons and a tire mounting machine are provided.
Please read these instr uctions caref ully and follow each step precis ely to
ensure you do not damage a sensor when dismounting the tire. If steps are
not taken to avoid the sensor located in the drop center well of the rim, it can
be crushed by the beads as the tire is removed.
®
TPMS Sensor Installed
3.5.1 Using Tire Irons
1. After removing the deated tire / wheel assembly from the vehicle, lay
the assembly on a oor mat and unseat both beads directly opposite
the sensor. The sensor should be located at the valve stem (the rim
mounted decal should also indicate the sensor’s location). Do not unseat
the bead at or near the sensor/valve stem.
Figure 13
2. Ensure that the mounting side of the wheel is facing upward and both
the bead and wheel ange are properly lubricated.
3. Starting near the sensor, lift the top bead over the wheel ange using tire
irons and progressively work away from the sensor until the top bead is
free. Be careful not to contact the sensor with the tire irons.
4. Again starting near the sensor, repeat the process for the bottom bead
until the tire is free from the wheel.
20
3.5.2 Using a Tire Mounting Machine
1. After removing the deated tire / wheel assembly from the vehicle, unseat
the beads directly opposite the sensor and valve stem. The sensor should
be located at the valve stem (the rim mounted decal should also indicate
the sensor’s location). Do not break the bead at or near the sensor /
valve stem.
2. Position the lubricated tire / wheel assembly on the machine so that the
dismount head and the sensor are approximately aligned.
3. Lift the bead over the rim ange with the bead lifting bar and then advance
the assembly / dismount head clockwise to remove the top bead.
4. Repeat steps 2 and 3 to remove the bottom bead.
NOTE: This information sh ould be provided to tire installer s that are not
authorized SmarTire
®
TPMS distribut ion outlet to ensure a sensor is not
broken when a tire is dismounted.
21
3.6 Tire Sensor Specications
Tire Sensor (with cradle)
Power Internal Lithium Battery
Weight 1.89 oz (58.7 g)
Dimensions 3.58 x 1.65 x 1.34 in. (91 x 42 x 34 mm)
Operating Temperature
(-40º C to 125º C)
Pressure Accuracy at 0ºC
to 50º C
Maximum Cold Ination
Pressure
Maximum Sensing
Pressure
Battery Life 5 years operational, 5 year shelf
Table 3
-40º F to 257º F
+/- 2.39 PSI (0.65 bar)
160 PSI (11.03 bar)
188 PSI (13.0 bar)
22
Section C: System Installation –
Components and Programming
4.0 Installing The SmarTire
®
Trailer-Link
™
System
What follows are the steps to install the SmarTire® T railer-Link™ TPMS system
components fo r trailers built af ter 1998 with integrated p ower supply lines
and ABS modules already equipped. Installation of the TPMS sensors onto
wheels is excluded in this section. For additional harness, component, and
sensor installation details, refer to Sections B and E.
CAUTION: It is recommended to install all Trailer TPMS sensors
in their pre-assigned locations prior to completing the actions below
and in accordance with the sensor mounting instructions in Section B.
Step 1. For a multi -ax le trailer, use Figure 3 to identi fy the ide al SmarTire
T railer -Link ECU mounting location. To do so, picture a line drawn from the
left front trailer tire to the rear right trailer tire, and a line drawn from the front
right to the rear left tire. Where the lines intersect is the approximate mounting
location of the provided SmarTire T railer-Link bracket and ECU. For a single
axle trailer, place the ECU slightly in front of the axle.
Figure 14
T o ensure optimal signal reception, make sure the distance between any tire
and the SmarTire Trailer-Link ECU does not exceed six (6) feet.
Step 2. To install the SmarTire Trailer-Link ECU mounting bracket, nd a
at surface at or near the location indicated in Figure 3, and use a minimum
of three hex bolts to secure t he bracket against the surf ace. Trailer c ross
members are ideal for mounting the bracket. For dimensions of the mounting
bracket, please refer to Section D.
Step 3. Mount the Sm arTire Trail er-Link ECU against t he br acket by using
the two hex bolt sets provided. Ensure that the ECU module’s at top is
facing parallel to th e trailer tires, with the har ness connector f acing away
from the driving direction. See mounting example below; arrow shows driving
direction of the trailer.
23
Figure 15
Step 4 . Find the ABS power supply on the underside of the trailer. This power
supply is usually loc ated just ahead of the t railer ax les along t he frame, or
directly next to the A BS modu le. Free the connec tor of any dirt an d debris
and wipe down the ABS connection joint with a dry cloth before moving on.
Lift the plast ic lockin g tab slightly to pul l the ABS p ower splice c onnectio n
apart. Be careful as this tab can break off easily if pushed up too far.
Step 5 . Interconnect the SmarTire
®
T railer-Link™ ABS-Power Splice Harness
(Part No: K075867) with the or i g inal ABS power supply. Ensure the locking
tab is re-engaged and that the connector plugs are greased with the supplied
dielectric grease.
P1 & 2 - ABS Power Splice Connections
P1 PIN# P2 PIN # Designation Color
A A Brake Light Power White
B B Ignition Power Red
E E Ground Black
Detail B-B
D
A
Packard plug
CEB
P1
Packard Plug
C C Aux. I/O Blue
D D Indicator Lamp Brown
15 Inch
B
B
Detail A-A
A
P3
P3 - ABS Power Splice Connection
P3 PIN # Designation Color
A
2 Brake Light Pwr. White
3 IGN. Power Red
1 Ground Black
Packard Recpt
Detail C-C
E
CB
D
C
A
Packard Recpt
P2
C
Figure 16 - SmarTire Trailer-Link™ TPMS ABS Power Splice (Part No: K075867)
24
Step 6. After installin g the ABS Power Splic e harnes s, connec t the 3 -pin
power connector, (P3 in Figure 16) to the Smar Tire T railer -Link™ TPMS Wiring
Harness, (P3 in Figure 17). Then route the harness along the underside of the
trailer, taking care to avoid any slider mounts and su s pension compo n e nts.
Secure the har ness every fo ot with zip ties. C onnect t he other end of the
harness, P1 in Figure 17 to the SmarTire Trailer-Link ECU.
P3 - ABS Power Splice Interconnection
P3 PIN # Designation Color Optional Color
2 Brake Light Power White White
1 Ground Black Ye llo w
DTM06-12SA-E007
A
P1
A
P1
Detail A-A
12
11
DEUTSCH
10
9
8
7
3 Ignition Power Red Red
1
2
3
4
5
6
12 Inch
P5
Bullet Connector
64 Inch
36 Inch
DTM06-3S-E007
P2
Delphi Fuse
P3
Detail B-B
P3
B
B
8 Inch
B
A
P4
C
P4
Detail C-C
P1 - DTM06 -12SA-E007
14
P1 -
Pin #
Designation Wire Color
Optional
1 RS232-Transmit Blue Black
2 Not Used Sealing Plug ---
3 Brake Light Power Orange White
4 Not Used Sealing Plug ---
5 Not Used Sealing Plug ---
6 Ignition Power Red Red
7 Not Used Sealing Plug ---
Color
P4 - Serial Port with LED Diagnostic
P4
Designa-
PIN#
tion
RS232-
2
Transmit
RS232-
3
Receive
1 Ground Black* Yell ow
32
DTM06-4S-E007
Optional
Color
Blue Black
White White
8 LED - Diagnostic Brown Brown
9 Not Used Sealing Plug ---
10 Lamp Driver Purple Purple
11 Ground Black Ye llo w
4
Diagn.
Splice Required into main GND wire
*
Brown Brown
LED-
12 RS232-Receive White White
Figure 17 - 6 ft SmarTire® Trailer-Link™ TPMS Harness Part No: K075868
25
C
Color
In some cases, the supplied 6ft harness may not be sufcient for your
installation. If this is the case, there is an optional 15 ft SmarTire T railer-Link™
TPMS Harness Part No: K075869 available. Please contact your distributor
to order this part.
Step 7. Route the 4-pin diagnostic LED line to the side of the trailer or slider
and secure the line ever y foot wit h zip ties. Ensure th e Bendix diagno stic s
LED Cap part numbe r K0758 66 is placed over the end of the diagnosti c
connector, P4 in Figure 17 when not used with the Maintenance Han d too l.
Connec t th e trailer to po w e r and watc h fo r the LED t o light u p br i ey to conrm
the SmarTire Trailer-Link ECU is functional. Refer to the blink code table in
Section C for more information.
Step 8 . If needed, adjust the Cold Ination Pressure (CIP) of each axle using
the SmarTire
®
Maintenance Hand to ol (09 0.0011) and diagnosti cs har nes s
part number K092501 as described in Section 3.1 to complete the installation.
If the optional trai ler warn ing lamp is not inst alled, pl ease use th e supplied
dielectric grease and ll the trailer lamp output connector (P5 in Figure 17)
with grease to protect it from corrosion. For instructions on how to install the
optional trailer warning lamp, continue to step 9.
Optional Step 9. Using the lamp output
connector (P5 in Figure 17) a trailer lamp may
also be installed at the n ose of the trailer to
provide trailer TPM S alerts regardless if th e
tractor is equipped with a SmarTire TPMS
unit. Extend a p ower line from t he conn ector
to the lamp (standard 12-24V lamp with max
one (1) Amp draw can be used, n ot provided
by Bendix) and ground the lamp to the trail er
chassis at its mounting point. Place the
provided Trailer Lamp alert sticker underneath
the trailer lamp. See Section C for blink codes.
Figure 18
CAUTION: A 5-Amp fuse is included with all SmarTire Trailer-Link
TPMS harnesses. If the fuse needs to be replaced, use a maximum
5-Amp fuse to protect the SmarTire Trailer-Link ECU.
26
4.1 Conguring & Customizing Your
SmarTire Trailer-Link
™
System
During the installation process, the default settings for SmarTire T railer-Link
™
TPMS should be customized to the trailer by the installer. Using the Smar Tire
T railer-Link Diagnostics Software within Bendix® ACom® Diagnostics 6.6 (or
higher), alert thre sholds can be made more or les s sensitive and system
settings can be adjusted to accommodate trailer changes and use.
Replacing trailer tires or installing the system on a new trailer may also require
adjustment of pre-congured settings. The following section describes how
to adjust the pre-congured settings of your SmarTire Trailer-Link TPMS.
4.1.1 Pre-Congured Settings
Generally, the SmarTire Trailer-Link TPMS is pre-congured with the default
settings listed be low. Depending on your vehic le, your system may have a
different initial setup.
● Cold Ination Pressure (CIP):
◊ 4-Wheel (2-axle Conguration)
• Trailer Axle 1&2: 100 PSI (6.89 bar)
◊ 8-Wheel (2-axle Conguration)
• Trailer Axle 1&2: 100 PSI (6.89 bar)
● First Alert Level (FAL) Pressure Deviation Alert: CIP ±15% (temperature
compensated)
● Second Alert Level (SAL) Critical Low Pressure Alert: CIP -20%
● High Temperature Alert: 185°F (85°C)
Default cold ination pressure settings should always be customized to the
trailer. Check the trailer’s placard or the industry published load ination
table to determine the recommended cold ination pressure settings. Bendix
recommends setting the Second Alert Level (SAL) critical low pressure alert
at 20% below the recommended cold ination pressure for your trailer. Bendix
also does not rec ommend changing the First Aler t Level (FAL) pressure
deviation alert setting as well as the High T emperature Alert setting of 185F .
To make chang es to the FA L, SAL, and High Temperature settings refer
to the SmarTire Trailer-Link Diagnostics settings within Bendix ACom
Diagnostics. For programming sensor IDs and changing the axle CIP using
the Maintenance Hand tool, see the instructions that follow. These instructions
can also be found in the Maintenance Hand tool manual (BW2809).
27
4.2 SmarTire Trailer-Link™ Axle Cold Ination
Pressure (CIP) Adjustment Instructions
4.2.1 Equipment
™
● SmarTire Trailer-Link
®
● SmarTire
TPMS Maintenance Hand tool Kit 090.0011
4.2.2 Trailer CIP Programming Procedure
The default CIP programmed into the SmarTire Trailer-Link ECU is 100 PSI
for all axles. Each axle can be congured to have a unique CIP. If the case
arises where dif fere nt CIP values are require d, the following p rogrammin g
procedure should be used.
Perform the following steps:
1. Power up the SmarTire Trailer-Link ECU. In most cases the trailer will
need to be connected to a tractor in order to receive power. The diagnostic
LED on the SmarTire T railer-Link harness can be viewed at power up to
ensure that the ECU has power.
2. Using the Maintenance Hand Tool, press and hold the Setup
until a list of menu items appear.
3. Select the Trailer CIP menu item and press the Return
4. Use the Up
and Down arrow buttons to congure the system for the
total number of axles installed on the trailer. A maximum of 5 axles can
be congured. When the correct number of axles is selected, press the
Return button.
Diagnostic Harness Kit K092501
button
button
Figure 19
5. Next, adjust the CIP value for each axle. The default value of 100 PSI
will be shown on the screen (if imperial units are selected).
Figure 20
Use the Up and Down arrow buttons to adjust the value of the CIP.
Holding down the arrow buttons will cause the values to increment at
an increasing rate. Press the Return/Right button to advance to the
next axle.
28
6. When the Cold Ination Pressure (CIP) values have been adjusted to
the desired setting, press and hold the Return button for 3 seconds
until the programming screen bellow is displayed.
Figure 21
7. Using the SmarTire Trailer-Link™ programming cable (Part Number
K092501), connect the tool to the SmarTire Trailer-Link harness.
Figure 22
8. Press the Check button to initiate programming. Y ou may also press
the Return button to return to the CIP adjustment screen or press the
button to return to the main menu.
9. Once programming has been initiated, the following screen is shown:
Figure 23
10. After successful programming, the following screen is shown:
Figure 24
11. Press the Return button to exit to the main menu.
12. In the case of a programming error, the following screen is shown:
Figure 25
If this occurs, ensure the SmarTire T railer-Link ECU is powered and the
connection from the tool to the SmarTire T railer-Link harness is correct.
Press the Check
button to retry the operation, press the Return
button to return to the CIP adjustment screen in step 5, or press the
button to abort the programming and return to the main menu.
29
4.2.3 Trailer Sensor ID Walk-Around Learn Procedure
™
The following steps are only to be used for the SmarTire Trailer-Link
ECU.
When the tires are rotated or replaced on a trailer equipped with a SmarTire
tire pressure monitoring system, the trailer TPMS module must be taught the
new position of each sensor ID code. The Walk-Around Learn procedure is
used to activate each sensor in its new location, store the sensor information
and download this information into the SmarTire Trailer-Link ECU.
The SmarTire Maintenance Hand Tool (P/N 090.0011) will learn and store the
location of eac h sens or as t he use r walks around t he t raile r in a U-Shape d
pattern, starting at the left side (looking forward) front most tire location (see
Figure 28). If this is a dual tire axle, start with the inner tire location. The new
location information (ID codes) for each sensor collected is then uploaded to
the SmarTire Trailer-Link receiver.
1. Power up the SmarTire Trailer-Link receiver. In most cases the trailer
will need to be connected to a tractor in order to receive power. The
diagnostic LED on the SmarTire Trailer-Link harness can be viewed at
power up to ensure that the ECU has power.
2. Using the Maintenance Hand Tool, press and hold the Setup
button
until a list of menu items appear.
3. Select the Walk-Around Learn
4. Use the Up
and Down arrow buttons to select the number of tires
icon and press the Return button.
on the trailer.
Figure 26
5. When the correct number of tires is selected, press the Return button
to initiate the walk around learn procedure.
Figure 27
30
6. Using the SmarTire
®
TPMS Maintenance Hand Tool, go to the rst tire to
be programmed and proceed to activate each of the trailer’s tire pressure
sensors in the proper order. Starting on the left side (road side) of the
trailer at the forward axle, begin by activating the inner tire and proceed
to work counterclockwise from inner to outer tire. Work in a U-shaped
pattern around the trailer ending with the right side (curb side) forward
outer tire. If using wide-based single tires, simply start at the forward
left side tire and work in a U-Shaped pattern around the trailer ending
with the right side forward tire. Some examples are shown below:
Figure 28
7. T o activate the tire pressure sensor , hold the SmarTire Maintenance Hand
T ool’s antenna against the tire’ s upper sidewall in-line with the valve stem.
Press the Learn
Button to learn the ID code of the sensor. In most
cases, the Maintenance Hand Tool is able to receive signals from the
inner tire on the dual tire conguration as well. To program the inner tire,
hold the tool in line with the circumferential position of the valve stem of
the inner wheel, as indicated below:
Inboard TireOutboard Tire
Sensor
22-24 inch LF
Field Range
Figure 29 - Initiating Transmissions From Dual Wheels
Valve Stem
If the sensor is not programmed from this position, you many also place the
tool between the dual tire assemblies and activate the sensor by placing the
antenna near the tire sidewall, in -line with t he inner valve stem. Pressing
button will abort the Walk-Around Learn procedure.
the
31
8. Once the tool has learned the tire pressure sensor ID for the given
position, it briey displays the received ID code and automatically
switches to the next tire position.
Figure 30
Figure 31
Press the Learn button to initiate the next tire sensor. Repeat until all
the tires have been learned into the tool. At this point you may also press
the Up and Down arrow buttons to select and view any previously
learned wheel positions. If needed, you may also reprogram a tire
position by simply selecting a previously learned position and pressing
the Learn button. Any previously learned sensor ID codes will be
replaced by the new ID code for that position.
9. If a sensor failed to activate, the following screen will be displayed (Figure
32). If this occurs, ensure that the tool is placed at the correct position
around the tire and retry the sensor activation by pressing the Learn
button.
Figure 32
10. If, while learning a particular wheel position, a tire pressure sensor ID
code is received that is already used in a different position, the following
“Duplicate ID” error screen is displayed.
Figure 33
Pressing the button will delete the received ID and the screen will
go to the previously learned position. Press the Learn button to learn
the tire sensor into the position again.
11. After the last tire position has been learned into the tool, press the Down
arrow button. The tool is now ready to transmit this information to the
SmarTire T railer-Link™ receiver.
Figure 34
12. Using the SmarTire Trailer-Link programming cable (Part Number
K092501), connect the tool to the SmarTire Trailer-Link harness.
32
Figure 35
13. Press the Check button to begin downloading the new tire sensor
IDs into the SmarTire Trailer-Link™ receiver.
Figure 36
14. In the case of a programming error, the following screen is shown:
Figure 37
15. If this occurs, ensure the SmarTire T railer-Link™ ECU is powered and the
connection from the tool to the SmarTire T railer-Link harness is correct.
Press the Check
button to retry the operation, press the Return
button to return to the learn procedure screen in step 5, or press the
button to abort the learn procedure and return to the main menu.
16. If the tool screen reverts back to the screen for entering the number of
tires, then the number of tires entered does not match the number of
tires currently programmed into the SmarTire Trailer-Link receiver.
Figure 38
Make sure the number of tires entered o n the tool matche s the number of
tires being monitor ed by the SmarTire Trailer- Link rec eiver and t hen retur n
to Step 4 and repeat the Walk-Around Learn procedure.
33
Section D: SmarTire Trailer-Link™ TPMS Display Options
5.0 Trailer Information Display Options
5.1 Tractor SmarTire Dash Display
When the SmarTire Trailer- Link™ TPMS system is combined w ith a tractor
equipped with the SmarTire® TPMS system, the trailer tires will be added in
the form of ‘T’ axles following the last tractor axle on the 2-inch SmarTire dash
display. The dash gauge will reboot shortly after the wireless connection is
established wit h the SmarTire Trailer-Link system and t he new trailer axl e
positions will be displayed for the tractor. T o become more familiar with the
functions of the S marTire dash display, refer to Section C of the Sm arTire
Operator’s Manual BW2799 before continuing on in this section.
CAUTION: The tractor dash display cannot be used to make any
SmarTire Trailer-Link system parameter adjustments or to change the
sensor conguration programmed into the SmarTire Trailer-Link ECU!
These parameters are stored directly in the SmarTire Trailer-Link ECU
and must be congured by connecting to the SmarTire Trailer-Link ECU
as described in Section 4.1.
Ensure the SmarTire Trailer-Link Enable function is set in the SmarTire
tow-vehicle-mounted ECU part number 200.0216.
For tractors equipped with the part number 200.0184 ECU to be able
to communicate with the SmarTire Trailer-Link ECU, the ECU rmware
MUST BE updated to new rmware. For instructions on performing
this update, please contact your Bendix account representative or call
1-800-AIR-BRAKE (1-800-247-2725).
Figure 39
34
5.2 Tractor SmarTire® TPMS Dash Display Alerts
After the SmarTire Trailer-Link™ connection has been established, the same
three tire alerts, rst level pressure, second level pressure and temperature
alerts w ill be reported from the t railer that are reported fr om the tractormounted Smar Tire® TPMS system. In addition, trailer tire sensor Diagnostic
Troub le Co des (DTCs) and low batter y alerts will also b e repo r te d. Please
note, alert levels congured in the tractor TPMS ECU do not override the
settings in the SmarTire Trailer-Link ECU. For example, if the tractor has its
rst level alert set to 10% -- but the SmarTire Trailer-Link ECU is congured
for a 15% rst level alert – the driver will see trailer tire alerts based on the
15% gure stored in the Trailer-link ECU.
Pressure Deviation Critical Low Pressure High Temperature
Figure 40
5.3 SmarTire Trailer-Link™ To SmarTire TPMS
Dash Display Link-Up Procedure
The SmarTire
connections. There are three options available and can be congured with
the Bendix ACom 6.6 (or later) diagnostic software.
1. Disabled: In this mode Trailer Linking is disabled and trailer tires will not
show up on the dash display.
2. Automatic Learn Mode: In this mode the SmarTire ECU will try and auto
detect the attached trailer. In this mode the SmarT ire T railer-Link should
link up within 30 seconds but could take as long as 5 minutes.
3. Dedicated Trailer Mode. In this mode the ID code of a particular trailer
can be programmed into the SmarTire ECU. This mode is normally used
if the tow vehicle always pulls the same trailer. Link-up in this mode
should take 30 seconds.
When the tractor drops a trailer, it will unlink from the SmarTire ECU in 9
minutes at which time the dash display will remove the trailer tires.
®
ECU must be congured to allow SmarTire Trailer-Link
5.4 Trailer Lamp Blink Codes
If an optional traile r lamp i s inst alle d and c o nnec ted v ia th e lamp o utput o n
the SmarTire T railer-Link ECU, the following table shows the blink codes that
will be displayed by the system in the event of an active Diagnostic Trouble
Code (DTC) condition. The SmarTire T railer-Link lamp alerts will be displayed
for one (1) minute after system power-up and then will either show the lamp
on — or off — depending on status of the system.
35
TPMS Lamp Alerts
(repeated for 1 Minute
after Start-up, then ON
or OFF depending on
Priority)
5x Blinks
High
Temperature
& then
ON after 1
min.
4x Blinks
Critical Low
Pressure
& then
ON after 1
min.
Minor Over
or Under
Pressure
Sensor
Diagnostic
Trouble
Code (DTC)
Setup
Diagnostic
Trouble
Code (DTC)
Table 4
2x Blinks
& then
OFF after
1 min.
1x Blink
& then
OFF after
1 min.
3x Blinks
& then
OFF after
1 min.
Cause and Solution
Contain e d Ai r Temperature is ove r 85 C /185F –
Stop and allow tire to cool down, assess cause
of temperature increase, possible brake,
wheel bearing, or pressure issue
Tire Pressure has dropp ed bel ow the c rit ica l
threshold (-20% default), stop and check for
punctures, bead leaks, valve leaks, etc. and
air up the tire
The minor over- or under-pressure thresho ld
has been reached, have the tire serviced
during the next maintena nce check, set the
recommended pressure and compensate for
changes in ambient temperature (see temp
chart in Section A)
Data from a TPMS sensor has not been
received for 35 min. This may be rel ated to
the signal rece ption of t he senso r. Continue
to drive to clear the DTC. If the Diagno stic
Trouble Code (DTC) persists, check the
programming and functionality of all trailer
TPMS sensors by using the Maintenance
Hand tool 09 0.0011 and replace sensors if
unresponsive
™
The SmarTire T railer -Link
ECU is not properly
programmed and is unable to connect. Check
the programming using the Maintenance
Too l, Diagnostics Sof tware and Diagnosti cs
Harness K092501
36
Section E: Additional Component Details
6.0 SmarTire Trailer-Link
™
System Component Details
6.1 SmarTire Trailer-Link Module Specications
6.1.1 Power, Mounting, and Environmental Requirements
● Operating voltage range 9 – 36V
● Typical current consumption (with no external loads) 30mA
● 5A fuse is required bet ween the m ain power line of the tr ailer link and
the vehicle battery
● Frequency 433.92 MHz
● Modulation type: OOK
● Design protected for FSK
● 500 kHz Band Width
● Sensitivity (OOK) at 433.92 MHz : -112 dBm
● Internal antenna only
● Uses standard Deutsch enclosure
● Tested to SAE J1455 Specications
● Operating temperature range: -40C to +85C
● Survivability temperature range: -40C to +85C
● Sealed to IP67
● Preferred mounting orientation to shed water is vertical (Connector side
facing rear of trailer, away from driving direction)
● Preferred Mounting hardware: ¼ -20 (M6X1 ) Flange Head CAPSCREW,
torque to 7-10 FT/LBS (13 Nm)
● The SmarTire Trail er-Link ECU has an internal antenna and should be
mounted free of any metal (only half the enclo sure should be c overed
by the chassis or metal bracket)
37
6.1.2 SmarTire Trailer-Link™ Module
Dimensions in Inches/[mm]
4 7 in (119 5 mm)
5 28 in
(134 mm)
Figure 41
6.1.3 SmarTire Trailer-Link Module
Connector Pin Description
Position Signal
1 RS232-TX
2 NOT USED
3 BRAKE LIGHT-L
4 NOT USED
5 NOT USED
6 VIN
7 NOT USED
8 LED-DIAG
9 NOT USED
10 LAMP DRIVER
11 GROUND
12 RS232-RX
Figure 42 - PIN-OUT TABLE
1 43 in (36 4 mm)
4 0 in (102 mm)
38
D-SUB-MALE
1
6
2
P2
7
3
Detail A-A
8
4
9
5
P2
P1
D-SUB-FEMALE
5
9
4
P1
8
3
7
Detail B-B
2
6
1
Figure 43
6.1.4 SmarTire Trailer-Link™ TPMS Diagnostics
Interface Harness Part No: K071016
A
B
10 Inch
TPMS TOOL
A
PC
B
72 Inch
P3
Detail C-C
14
11
2
Back View
7
3
P3
C
DTM04-4P
C
39
Figure 44
6.1.5 SmarTire Trailer-Link™ Mounting Bracket
Part No: K092801 (dimensions in inches)
1 2 in
12 in
3 in
40
Section F: Troubleshooting
7.0 Troubleshooting Guide
7.1 SmarTire
®
TPMS Gauge Display And
SmarTire Trailer-Link™ Module Q&A
7.1.1 Q: The SmarTire Trailer-Link™ module does not connect to the
tractor. How can the SmarTire Trailer-Link module be diagnosed
further?
A: In the event that the SmarTire T railer-Link ECU does not connect with the
SmarTire vehicle-mounted TPMS system, follow these steps:
1. Check to make sure the SmarTire T railer-Link ECU and vehicle-mounted
TPMS ECU power up during start up. The red diagnostics LED (P/N
K075866) on the SmarTire Trailer-Link harness should light up during
power-up to conrm that power is being supplied to the SmarTire Trailer-
Link ECU.
2. Ensure the SmarTire Trailer-Link Enable function is set in the SmarTire
tow-vehicle-mounted ECU part number 200.0216 and that the tow-vehicle
ECU is loaded with TPMS rmware part number is 248.0091 min. version
1.02 and CAN rmware part number 248.0092 min. version 1.03. Use
Bendix ACom 6.6 (or later) Diagnostics to verify the software version on
the vehicle-mounted ECU.
3. Check the SmarTire Trailer-Link harness to ensure all connections are
secure. Ensure the locking tab on the ABS-power splice is engaged as
well as the main connector on the SmarTire Trailer-Link ECU module.
4. Cycle power to restart the link-up process and reset the ECUs.
5. If the SmarTire T railer-Link ECU still does not connect with the SmarTire
vehicle-mounted TPMS system please refer to 7.1.4 for further
Diagnostics.
41
7.1.2 Q: The gauge only displays dashes for the trailer tire information;
there is no pressure, temperature, or deviation value.
®
A: After th e wireless link between the trac tor SmarTire
™
the SmarTire Trailer-Link
module has been established and the gauge has
TPMS ECU and
rebooted, trailer tire sensor data will be displayed within ve (5) to eight (8)
minutes on the gauge.
T o facilitate the quicker display of tire information, use the SmarTire LF Tool
or SmarTire Maintenance Hand tool and initiate each of the tires that have not
reported to the Gauge. On the SmarTire TPMS Maintenance Hand tool, press
the left-most button as you point the tool’s antenna into the tire sidewall above
the valve stem (default sensor location). Remember, that both the SmarTire
LF Too l and Sm arTire Maintenance Hand to ol a re c ap able of ac t ivating t he
inner tire on a dual tire assembly from the outboard tire position. For use of
the SmarTire LF Tool, please refer to manual BW2820.
In cases where no transmissions were received from a specic tire, move the
Hand tool ve (5) inches in a clockwise or counterclockwise direction and try
again. Should the problem persist, a defective, missing, or misplaced sensor
may need to be diagnosed – see Section 7.3.
Inboard TireOutboard Tire
Sensor
Figure 45
22-24 inch LF
Field Range
Valve Stem
42
7.1.3 Q: When the Gauge rst powers up, the alert lamp is blinking and
a triangle with an exclamation mark is displayed. A few minutes later
the alert cl ears and the display retur ns to normal. Was there an alert?
A: During the start up sequence, the
Gauge may clear itsel f of a previous al er t
condition or i ssue a momentar y alert i f a
tire sensor has not reported in.
Figure 46
As soon as the tir e sensors report their late st readings and they do not
constitute an alert condition, the Gauge will clear the alert.
Ensure that the user keeps an eye on the par tic ular alert until it is cle ared.
If the alert does not clear itself, the user may indeed have an alert condition
that needs to be chec ked further. Updating the given tire po s ition with new
information by using the LF T ool or Maintenance Hand tool (press “Initiate”),
would clear the alert faster, unless an alert condition does exist or the sensor
is malfunctioning.
43
7.1.4 Q: What additional diagnostic information is available?
A: The external LED part # K075866 is connected via the cable harness as a
separate plug. Please refer to Section C, 4.0, step 7 for details on installation
and location of this LED. The LED functions as described in the table below.
Flashing with pattern will have periods of 0.3 second on and 0.3 second off
repeating every 6 seconds. The number of high pulses in each 6–second
window will be determined by a code. For example if the ash code is 2, the
pattern will be 0. 3 second on, 0. 3 second of f, 0.3 second o n, 5.1 sec onds
off and repeating.
Alarms Priority External LED See
No Alarms 0 Off Second Level Low Pressure (SAL) 6 Pattern ashing
code: 4
SAL Cleared 0 Off First Level High Pressure (FAL_H) 4 Pattern ashing
code: 2
First Level Low Pressure (FAL_L) 3 Pattern ashing
code: 2
FAL Cleared 0 Off High Temperature 7 Pattern ashing
code: 5
High Temperature Cleared 0 Off Sensor Diagnostic Trouble Code (DTC) Set 2 Pattern ashing
code: 1
Sensor DTC Cleared 0 Off ROM To Both Copy Performed 10 Pattern ashing
code: 7
Set Up DTC 5 Pattern ashing
code: 3
Set Up DTC Cleared 0 Off Factory To Custom Copy Performed 9 Pattern ashing
code: 7
Custom To Factory Copy Performed 8 Pattern ashing
code: 7
Watchdog Reset 11 Pattern ashing
code: 8
Sensor Battery Low Alert 1 Pattern ashing
code: 6
Note
-
-
-
-
1
2
3
2
4
5
-
Table 5
44
Notes for Table 5
Note 1: This Diagnostic Trouble Code (DTC) occurs when the SmarTire
Trailer-Link™ ECU has not received informatio n from a tire sensor for 35
minutes. Possible causes are:
1. A tire has been replaced and a tire sensor is no longer in range of the
ECU and is therefore no longer being received. In this situation the
missing sensor must be replaced and the ECU recongured to add this
new sensor.
2. There is poor radio frequency signal quality between the sensor and the
ECU. Check the installation of the ECU and ensure it is not mounted
close to any metal objects and is in the correct location as described in
Section C, 4.0.
3. There is a malfunctioning sensor in one of the vehicle’s tires. In this
situation the malfunctioning sensor must be replaced and the ECU
recongured to add this new sensor.
Note 2: This Diagnostic Trouble Code (DTC) is generated when the
conguration information within the ECU has become corrupt. During this
DTC the ECU’s conguration is restored to the default factory setting. If this
DTC occurs all sensors registered in the ECU will be lost and all programmable
settings restored to factory settings. The ECU must be re-congured to
become operational again.
Note 3: This DTC is active if there are no tire sensors registered in the ECU.
This could be caused if the ECU was never congured or corruption of the
conguration in f o r m a t i o n has oc c u r r e d as in Note 3. To co r re c t th i s si tuation,
tire sensors installed on the trailer must be learned into the ECU.
Note 4: This DTC is generated when the conguration information within the
ECU has become cor rupt. The ECU has re covered from thi s by restoring
the congurat i o n fr o m a ba c k u p co py. Nor m ally this DTC is self- c o r re c t e d by
the ECU but the conguration should be analyzed to make sure all settings
are correct.
Note 5: This DTC is generated when the ECU has restarted due to a software
related failure. If this DTC occurs o n a regular basis, the ECU should be
returned to Bendix for analysis.
45
7.2 SmarTire® TPMS System Q&A
7.2.1 Q: A tr ai l e r ti r e co n t i n u e s to sh ow a deviation value/aler t al t h o u gh
it was aired up properly.
A: Set the Cold Ination Pressure value (CIP) for each trailer axle to make
sure it matches that of the intended ination value for the tire in question.
To do so, pleas e refer to Section C, 4.2.2 as well as the ination tables in
Section A under Section 1.4. If the CIP value is matched to the recommended
ination pressure for the vehicle and the prevailing ambient temperature but
the deviation value cont inues to show up, the tire is exhibi ting a slow leak .
Take appropriate steps to have the tire inspected for any damage or leaks.
7.2.2 Q: Pressure readings at a tire location do not change on the
gauge when air is added, or removed, to correct tire pressure, and a
new transmission has been received.
A: Whee l as sembli e s may have been re l o c ated/r otated on th e trailer wi thout
™
the SmarTire Trailer-Link
ECU having been updated. To correct this, follow
the steps in Section C, 4.2.3 in combination with the SmarTire® TPMS
Maintenance Hand tool to relearn sensors into their correct tire positions.
7.3 Diagnosing A Defective, Missing, Or Misplaced Sensor
In the event that a tire sensor does not r eport to the display af ter having
gone through the step s above, the following s ensor c hecks sho uld also be
performed:
a. Try to initiate the sensor opposite of
the valve stem. There are times when
the tire installer accidentally places the
sensor 180 degrees opposite of the
valve by misreading the instructions
(sensors are required to be placed 180
degrees opposite of each other for dual
wheel assemblies). Check for new data
on the gauge for the affected wheel
position.
b. If step a. was unsuccessful, try to initiate the sensor at the bottom of the
wheel, no matter where the valve stem is located. If this attempt updated
the display screen, rotate the wheel 180 degrees forward and initiate the
sensor again at the BOTTOM of the wheel. If the second initiation also
provided new data (cycle power between tries to empty the screen, not
necessary when using SmarTire Maintenance Hand tool), it is evidence
of a broken cradle and/or strap. The sensor is simply falling to the lowest
point in the wheel after each rotation. Remove the tire and replace the
cradle and strap. Depending on the damage done to the sensor itself,
Figure 47
46
it may simply be pressed into a new cradle for reuse. Avoid reusing the
strap – worm gear could be damaged internally.
c. If points a. and b. did not yield any results, the sensor is either missing or
has been damaged. Remove the wheel carefully and inspect the inside
tire lining for any damage if the sensor, strap, and cradle are found to
have been damaged and non-operational. Replace strap, cradle, and
sensor. Program the new ID into the system using the SmarT ire
®
TPMS
Maintenance Hand tool as described in Section C, 4.2.3.
7.4 SmarTire® TPMS Hand Tool Troubleshooting
7.4.1 Q: The Tool does not power-up or turns off when the “Activate”
button is pressed.
A: Replace the batteries.
7.4.2 Q: No tire pressure sensor data is received.
A: Ma ke sure th e Ac t i vate A n t enna is h e l d within 6" of t h e ti re pressure s ensor
and positioned before the “Activate” button is momentarily pressed and that
the tool is held in th at posi tio n for at l east 3. 5 to 5 sec o nds. Try to activate
and receive tire pressure sensor data from another tire sensor.
Activate Antenna
On/Off
Button
Flash
Connector
Display Screen
Selection
Buttons
Figure 48
47
Appendix 1: Replacement Parts
8.0 Replacement Parts
DESCRIPTION
Bolt Kit for Receiver Mounting Plate 090.0017 090.0017N
Bolt Kit for Mounting Trailer ECU to Plate 090.0020 090.0020N
SmarTire Trailer-Link
SmarTire
SmarTire LF Tool - 090.0021
Tire Sensor with Cradle 201.0007 201.0007N
6 ft SmarTire Trailer-Link TPMS Harness K075868 K095615
15 ft SmarTire Trailer-Link TPMS Harness K075869 K095616
SmarTire Trailer-Link TPMS Diagnostics Interface
Harness
SmarTire Trailer-Link ABS-Power Splice Harness K075867 K095614
Sensor Mounting Cradle – High 264.0228 264.0228N
SmarTire Trailer-Link Mounting Bracket K092801 K096638
Plate-style SmarTire Trailer-Link Mounting Bracket K068737 K092425
Rim Labels 269.0155 269.0155N
Strap for 22.5" Rims 264.0328 264.0328N
Strap for 24.5" Rims 264.0332 264.0332N
Sensor Replacement Kit for 22.5" Rims (Includes
Sensor, Strap and Rim Label)
Sensor Replacement Kit for 24.5" Rims (Includes
Sensor, Strap and Rim Label)
®
TPMS Maintenance Tool Kit - 090.0011
™
ECU 200.0189 200.0189N
OE Part
Number
- K092501
- 115.0003
- 115.0004
AM Bendix
Part Number
Table 6
Contact your local authorized Bendix distribution outlet for parts pricing.
Note: The parts in t he table above are for referenc e purpose s only during
ordering of spare and replacement components. The table does not represent
the contents of any kit.
48
Appendix 2: System Scope Of Use & Alerts
9.0 System Scope Of Use And Alerts
This tire monitoring system does not in any way replace the need for regular
maintenance of the tire pressures and visual inspection of tires for damages.
9.1 System Installation And Usage
Warranty of the SmarTire® TPMS system requires that it has be en p ro p erly
installed and programmed by qualied personnel according to Bendix
specications. This includes all manuals and any supplementary installation
instructions included with system components.
9.2 Use Of Chemicals
Use of temporary re-sealing or re-ination products containing internal sealers
or propellants in any tire/wheel assembly may adversely affect the operation
of the Sensor/Transmitters and void the warranty.
9.3 Reacting To Alerts
CAUTION. When an alert is detected, reduce vehicle speed to an
appropriat e , safe level an d pr o c e ed to a safe stopping locat i o n or facili t y
where the tire can be inspected and serviced.
49
9.4 Federal Communications Commission (FCC) Notice
This device com plie s with p ar t 15 of the FCC rule s. Ope rati on is subj ec t 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. These limits are designed to provide reasonable
protection against harmful interference in a residential installation. This
equipment generates, uses and can radiate radio frequency energy
and, if not installed and used in accordance with the 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 c ause harmful interference to radio or television
reception, whic h can be determined by turn ing the equipment off an d on,
the user is encour aged to tr y to c orre ct the inter fe rence by one or m ore of
the following measures:
● Reorient or relocate the receiving antenna,
● Increase the separation between the equipment and receiver,
● Connect the eq uipment into an outlet on a c ircuit di ffer ent from that to
which the receiver is connected,
● Consult the dealer or an experienced radio/TV technician for help.
Changes or modications to this device without the express approval of
Bendix may void the user’s authority to use this device.
50
51
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On-line training that's available when you are 24/7/365.
Visit www.brake-school.com.
SEE PAGE 2 FOR A LIST OF FURTHER
SOURCES OF INFORMATION.
BW2920 © 2014 Bendix Com mercial Veh icle Syst ems LLC, a memb er of the Knorr-Br emse Group. All Rig hts Reserved. 08 /13
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