Haldex O®O
Haldex
Installation &
User’s Guide
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O®O
Installation and User’s Guide
for the Haldex TRS Info Center 2
www.haldex.com
Haldex
Information Notice
IMPORTANT NOTICE
Safety First!
You must follow your “Company Safety Procedure” when you install this equipment.
Be sure you understand all procedures and instructions before you begin.
IMPORTANT NOTICE
The data listed herein is correct to the best of Haldex’s knowledge and belief, having
been compiled from reliable and official sources of information. However, HALDEX
CAN NOT ASSUME ANY RESPONSIBILITY for possible errors or misapplication of
the product. Final determination of the suitability of the productfor the use
contemplated by the Buyer is the sole responsibility of the Buyer. Haldex shall have
no responsibility in connection with this suitability.
IMPORTANT NOTICE
The description and specifications contained in this Troubleshooting Guide are
current at the time of printing. Haldex Brake Products Corp. reserves the right to
discontinue or modify its products and to change specifications at any time without
notice.
Technical Service and Engineering Phone Support
In the U.S. please call 1-800-643-2374 (press 2)
In Canada please call 1-800-267-9247
For additional information refer to the: TRS Installation Service Manual
(L30040). TRS Diag+ User’s Guide (Web Only)
These manuals may be downloaded off the Haldex web page
(www.haldex.com) free of charge.
All Rights Reserved
Material may only be reproduced with the written permission of Haldex.
Page 1
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Table of Contents
Introduction
Quick Start Trouble Shooting Tips
Mounting Location
Drill Pattern
Diagnostic Socket Location
Front Panel Operation
Info Center 2 Menu Overview
Password Protection
Main Menu Selections
Information Menu
Test Menu
Settings Menu
Battery
Trouble Shooting the Info Center 2
Care and Maintenance of the Info Center 2
Notes
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Haldex
2,3
4
5,6
7
8,9
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Page 2
Haldex
Introduction
This manual describes the correct installation and usage of the Haldex Info Center 2
diagnostic tool.
The Haldex Info Center 2 (Info Center 2)is a battery powered hand held information tool for use
with the Haldex Trailer Roll Stability (TRS) brake system. The Haldex Info Center 2
displays active and stored diagnostic codes, odometer values, TRS configuration plus other
information stored in the TRS Electronic Control Unit (ECU).
Features of the Haldex Info Center 2 Include:
View of Odometer readout
View of Loaded readout
Read & Clear Diagnostic Trouble Codes
View Number of Sensors and Modulators
View Orientation of Sensors and Modulators
View Sensed Wheel Output
View Auxiliary Configuration
View ECU Software Version, Serial Number
View Trailer Manufacturer, VIN
Monitor Trip Distance
View and Change Wheel Scale Factor
Support for many languages
The Haldex TRS brake system is used to reduce the potential for a roll over accident to occur.
For the Haldex TRS system to correctly operate it must be maintained over the operational life
of the trailer. The Haldex Info Center 2 provides the information needed to quickly and
correctly identify and repair issues with the TRS brake system.
The Haldex Info Center 2 may be used just as a workshop tool for diagnosing Haldex TRS
issues. However, the TRS Fleet customer will obtain the most value from the Info Center 2
when it is permanently mounted & connected to a TRS equipped trailer. When the Info Center
2 is permanently connected to the TRS, upon every power up of the TRS and periodically
afterwards the information in the Info Center’s memory is updated. This information may be
recalled and read when the trailer is parked, uncoupled and un-powered from a tractor.
Because of its internal battery the Info Center 2 is able to maintain a current date. The current
date is read by the TRS ECU on power-up and is used by the TRS to date-stamp roll stability
events and first occurrences of diagnostic trouble codes.
The Info Center 2 uses a Liquid Crystal Display (LCD) to display information plus three buttons
to allow the operator to interact with the Info Center 2 in an easy to understand, intuitive way.
The Info Center 2 may be programmed to power up to a customer specified display screen
displaying a number of TRS operating conditions. Customers have the choice to specify the
Info Center 2 to display values of the reservoir air pressure or air spring pressure and thus
eliminate the need for mounting and maintaining a mechanical pressure gauge. Mileage
information could alternatively be displayed and eliminate the need for mechanical hub
odometers.
Page 3
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Quick Start
Haldex
Quick Start Troubleshooting Tips:
If the ABS Fault Lamp is always ON
If the trailer mounted ABS fault lamp and/or the tractor dash trailer ABS fault lamp
is permanently ON the Info Center 2 may be used to read active and stored TRS
Diagnostic Trouble Codes (DTC5).
If the Info Center 2 is being used as a workshop tool all that is required is that the Info
Center 2 be cabled to the TRS ECU and DTCs read through the Information Menu.
Refer to “Cabling the Info Center” section below for details on connecting the Info
Center 2 to the TRS ECU. Refer to the Information Menu on Figure 9 for help on
reading and clearing the DTCs both active and stored.
If the ABS Fault Lamp is always OFF
If the trailer mounted ABS fault lamp never comes on, first of all, check for a burned
out bulb in the lamp. Examine the lamp wiring for loose connections, cut, broken, or
abraded wiring. Verify the TRS powers up and the two valves “blow down”. Each
valve solenoid should energize with an audible “click”; there will be two “clicks”.
If no “clicks” are heard then, verify the TRS has electric power by observing the
screen of the Info Center 2 when permanent power is applied to the trailer. The Info
Center 2’s screen should “light up” and the splash screen is displayed. If this doesn’t
happen then examine the trailer’s main wiring harness from the trailer nose to the main
power drop for the TRS. Look for open circuits, and short circuits between the
conductors. Verify the power cable is fully seated in the TRS ECU.
Verify that an adequate power source is being used to power the TRS, i.e. 12 volt DC
supply capable of delivery of three to five amps of constant current Do not use a
battery charger or a discharged battery. If a line operated power supply is used verify
the supply delivers 12 volts DC voltage and not AC.
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Page 4
Mounting Location
Haldex
Mounting Location of Info Center 2 on Trailer.
Mount the Info Center 2 in a convenient, accessible spot on the trailer which is
reachable and viewable by the user but also protected from road spray and impacts
from road debris. The location must also be close enough for the data/power cable to
reach between the Info Center 2 and the TRS ECU.
The Info Center 2 must be mounted in such a location that the cover may be fully
raised. Refer to Figure 1 for size and clearance information for the Info Center 2.
—
INFO CENTER 2
5-112”
0
1/4”
e
2-1/2”
HALDEX
5-1/2”
6”
Front View
1-3i4”
4
$
5-1I2”
112”
4
6”
Side View
(Cover Open)
Side View
(Cover Closed)
Figure 1: Dimensions and Clearance Requirements for the Info Center 2
Page 5
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Mounting Location
Haldex
/
1200
7-9116”
5-11116”
Side View
(With Cable)
Side View
(Angled Lid)
Figure 1: Dimensions and Clearance Requirements for the Info Center 2 Continued
-
Do not mount the Info Center 2 in a location in which the unit is subjected to direct and
indirect spray by a pressure washing jet. Do not paint the Info Center 2 or it’s cover.
Do not mount the Info Center 2 in a location where harsh chemicals or solvents may
spill upon the Info Center 2 or its cover.
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Page 6
Drill Pattern
Haldex
Drill pattern for mounting the Info Center 2
Figure 2 is a guide for the location and sizes of the mounting holes for the Info Center
2. Besides the two holes for mounting the Info Center 2 unit, a third hole is required to
accommodate the datal power cable that connects between the TRS ECU and Info
Center 2.
Dia Hole
5-112”
Dia Hole
0.7”
1-114” Dia HoI~
1.6”
Figure 2: Hole Size, Spacing, and Clearance Footprint for Mounting the Info Center 2.
Page 7
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Diagnostic Socket Location
Haldex
Cabling the Info Center 2
The data! power interconnection cable enables power and data to flow between the
TRS ECU and the Info Center 2. Each end of the cable is unique and thus may only
fit in the correct connector on each end. Before installing the cable it is recommended
that a small amount of dielectric grease be applied to the electrical contacts to protect
them from corrosion. Too much dielectric grease may cause the connector to
“hydro-lock” and thus prevent it from completely closing.
To insert the cable in the TRS ECU, open the slide lock by pulling the slide lock lever
handle out approximately 318” or to the first stop. Make sure the “DIAGN” lettering
molded into the cable end points UP and fully insert the cable into the ECU DIAGN
socket. Note that the cable end is keyed and only goes in one orientation. Close the
slide lock by pressing the lever into the lock.
If the slide lock lever does not easily “go” or if much resistance is felt when closing. Do
not force the lever closed. Instead verify the cable is fully seated, with no debris in the
socket preventing the cable from fully seating. Also verify the power cable has not slid
out of its socket If needed, twist the cable slightly in the socket to better align the slot
in the cable end engaged by the slide lock lever tang. Figure 3 shows the location of
the DIAGN socket on the TRS ECU and slide lock handle.
DIAGN Socket
Slide Lock Handle
00
Figure 3. Location of the “DIAGN” socket on the TRS ECU.
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Page 8
Haldex
Diagnostic Socket Location
Insert the other end of the cable into the socket on the back of the Info Center 2. Note
that this socket is also keyed. Make sure the locking lever engages the indentation hole
in the wall of the socket connector. Refer to Figure 4.
Cable inserts into
socket from behind
the Info Center 2
0
Info Center 2
Push the cable into socket until
lever locks into hole
Lever
Push down lever with a blunt
object while pulling cable out
of socket
Hole
I
__________
4
Listen for a “Click”
To insert cable into
the Info Center 2
To remove cable
from Info Center 2
Figure 4: Details of the Info Center 2 Cable Insertion and Removal.
Once the cable is attached to the Info Center 2 and TRS ECU, route and secure the
cable to the trailer in an appropriate manner. Protect the cable jacketing with plastic
loom at chafe points. Do not coil the cable with other cables. Do not coil the cable into
a coil smaller than 4 inches in diameter. Do not attach the cable to an air hose with
wire ties. Do not allow excess cable to hang freely or catch on mechanical components
of the trailer or objects on the roadway.
Page 9
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Front Panel Operation
Haldex
Figure 5 depicts the front panel of the Info Center 2. Pressing any one of the three
buttons will turn the Info Center 2 “ON”. The up and down arrow buttons allow the
operator to scroll through the on screen menus. The “OK” button selects or confirms
the action the user wishes to take.
INFo tEN 7ER
INFO CENTER 2
H~!dex
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Use the OK button to:
Turn On the Info Center 2
Enter into Sub Menus
EnterlConfirm Info Center 2 Actions
EnterlConfirm Info Center 2 Values Changes
EnterlConfirm Info Center 2 Configuration Changes
Use the UP arrow to:
Turn On the Info Center 2
Scroll up the Main & Sub Menus
Select Info Center 2 Configuration Units
Select Numerical Values
INFO CENTER 2
E~J
2
H~!dsx
Wa C(NrOI 2
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INFO CENTER 2
Haldex
flea
CWI’UT 2
00
—
Use the DOWN arrow to:
Turn On the Info Center 2
Scroll down the Main & Sub Menus
Select Info Center 2 Configuration Units
Select Numerical Values
HALOEX
Figure 5: Info Center 2 Front Panel
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PagelO
Front Panel Operation
HaldEx
The usefulness of the three buttons may be extended by the use of the function bar on
the Info Center 2 screen. The function bar on the LCD screen guides the user to the
specific action taken by the buttons. Figure 6 is an example of the use of the function
bar The UP arrow, and OK button functions have been substituted to making specific
selections in the example menu function shown in Figure 6.
INFO CENTER 2
n’s
psi
rev/rn
/4
€30
HALDIX
_______
F
Pressing the UP arrow button
selects this value: “miles”
The OK button exits
this screen
Figure 6: The Function Bar Extends the Push Buttons Functions.
Page 11
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Menu Overview
Haldex
Upon power-up of the Info Center 2 a series of screens are displayed to indicate the
present status of the TRS system on the trailer.
The back Iightfunction of the Info Center 2 is enabled by application of permanent or
blue wire vehicle power to the TRS. When the Info Center 2 powers up by it’s internal
battery the back light is not enabled.
Upon power-up the initial splash screen is displayed for 2 seconds Next if the internal
battery voltage has dropped below the replacement threshold a low battery warning is
presented to the user. This screen is not shown when sufficient battery voltage is
present. If DTCs or fault codes are active with the TRS notice of these are displayed
for the operator. Next, if the TRS is at a service due point this fact is next displayed.
Finally, if the customer has configured an optional start screen this will be displayed
instead of the main menu selection screen. Refer to Figure 7.
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Page 12
Main Menu Screen
HaldEx
These screens are
INFO CENTER 2
I4DIdc)~
Iwv.cpim I
ot
HALDEX
4
Power Up
Splash Screen
displayed only if
applicable
I
0
Low Battery
Warning Screen
‘P
DTC Faults
Screen
I
Service Due
Warning Screen
I,
User Configurable
Start Screen
4~t
/
AlIZSZSI#tn-a
Main Menu
Screen
t
This screen is display
only if configured by
the user to be shown
Caption Screens
Figure 7. Initial sequence of screens to the display the Main Menu.
Page 13
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Main Menu Screen
Haldex
The Info Center 2 main menu consists of three menu selections and their associated
functions. The fourth choice EXIT displays the Distance function. Figure 8 diagrams
the main menu selections with each menu items sub menus and functions. Each menu
selection will be discussed in detail later on in this document To maneuver through
the menu tree use the Up/Down arrow buttons to move the highlighted item and the OK
button to select the highlighted menu item.
I ~ I Distance
‘
*
Trailer
—‘I
Exit
No Lining Wear Function
~Backto
Info center 2
Figure 8: Menu Selections and Functions.
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Pagel4
Haldex
Password Protection
Password Protection
All of the screens which allow the user to change a data field are password protected.
The user may enter the password using the unlock function in the settings menu, see
Figure 12 in this manual for the Unlock Info Center 2 function.
The Info Center 2 will stay unlocked while in use but will relock itself if no action is
taken by the user in a menu for 1 minute or after being idle in a menu function for 2
minutes. If the user enters a function while the Info Center 2 is locked they will be
prompted to enter the password as per the unlock function in the settings menu.
Info Center 2 password
A password is supplied to protect a number of Info Center 2 menu functions, as
shipped from the factory, the default Info Center 2 password is the four digit number:
0123. If desired, this number may be reset to any 4 digit number, see: “Resetting the
Password” below.
Procedure for entering the password
The password may be entered when prompted or in the settings menu unlock Info
Center 2 function. To enter the password: use the upldown arrow buttons to adjust
the first or left most digit, press the OK button when this digit is correct After pressing
OK the curser will automatically move to the right to the next password digit to be
entered. Adjust this second digit in the same way as the first with the upldown arrow
buttons. Continue until all four digits are set to the correct password. Use the OK
button to confirm the password entry.
Resetting the Password
The default 4 digit number password shipped with each Info Center 2 is: 0123. If
needed, this password may be changed to any 4 digit number.
Procedure for Changing the Password
In the Settings menu, select the ****PIN function. Enter the current Password to unlock
the Info Center 2. Once the Info Center 2 is unlocked enter the new 4-digit password.
Select OK to save the new password. Refer to: “Procedure for entering the password”
above.
Note that setting the password to all zeros disables the password protection function
on the Info Center 2.
Page 15
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Password Protection
Haldex
Forgot the password?
There is an alternative password that may be used in the event of a password being
forgotten or lost. The alternative password uses numbers taken from the trailers VIN
programmed into the TRS ECU. Note that this method will work only if a VIN has been
programmed into the TRS ECU and if the 14th to 17th digits of the VIN are numbers and
not letters. Verify the Vehicle Identification Number (VIN) field of the Information field
has been programmed into the TRS ECU. This may be done through the Information
menu function VIN; refer to Figure 9. This value may be read without a password.
The alternative password Is made of the following:
lstdigit=3+digitl4of the VIN
2nd digit= I + digit 15 of the VIN
3rd digit 4 + digit 16 of the VIN
4th digit= I +digitl7of the VIN
Note that if the result of the password digit calculation is greater than 9, use only the last
digit of the two digit number. For example: 4 + 8 = 12, use the 2 for the password.
Here Is an example calculation:
The vehicle has a VIN of HALDEX80123456789
The 1st digit is 3 + 6(digit 14 of the VIN )= 9
The 2nd digit is I + 7(digitl5 of the VIN )=8
The 3rd digit is 4+8 (digit 16 of the VIN) = 12
The4thdigitisl +9(digitl7of the VIN)10
In this example: the alternative password Is: 9820
The VIN may be programmed into the TRS with the Haldex PC based software program
DIAG+.
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Page 16
Main Menu Selection
Haldex
Information Menu
The information menu is the means by which active and stored diagnostic trouble
codes (DTCs ) may be read and cleared. Figure 9 displays the functions included in
the Information menu.
r
I H
( Lining Wear
~ Distance
Trailer
DTC
Display up to 8 active DTCs (Diagnostic Troubles codes)
DTC Memory
Displays up to 8 stored DTcs
Clear DTC
Clears all DTCs from the TRS
This menu function is Not Used
See Figure 10
~
Load Plate
I Configuratlon~
Displays the TRS load plate information
Display a graphic of the TRS valve speed sensor config.
VIN Number
Displays the VIN and OEM
ECU Version
Displays TRS software version, TRS serial number
and Info Center 2 software version
Figure 9: Information Menu and Functions.
Pagell
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DTC Information
Haldex
Note that for the Information menu selection DTC there are two types of DTC’s
functions: “DTC Memory” which are stored faults and “DTC” which are active faults.
Active faults may be thought of as what is wrong now, while stored faults are what
has gone wrong in the past.
For an explanation of the meaning of the DTC codes and suggested actions to take
refer to the following sections.
Note that in general. Most ABS or TRS problems are related to:
A)
B)
C)
D)
E)
Cut, corroded, or abraded wires.
Corroded electrical connectors and terminals.
Connector terminals not latched or seated correctly to mating assemblies.
Excessive sensor air gap, sensor clip retention problems.
Excessive wheel bearing end play.
When electrically powering the trailer verify an adequate power source is being used
to power the TRS, i.e. 12 volt DC supply capable of delivery of three to five amps of
constant current. Do not use a battery charger or a discharged battery. If a line
operated power supply is used verify the supply delivers 12 volts DC voltage and not
AC.
Before work on the trailers air brakes and air system, be sure the trailer will not
accidently roll away, or that raised lift axles will not cause injury or damage when they
drop. Chock the wheels, remove electrical power from the trailer, drain the air system
and verify the spring brakes are applied. Follow your companies’ safety rules and
work safely.
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Page 18
Haldex
DTC Information
Diagnostic Trouble Code List
The Diagnostic Trouble Code codes are grouped into 6 main groups based on the
mode of fault. These groups are: 1. Power Supply 2. Speed Sensors 3. Modulator
Valves 4. ECU 5. Lateral Accelerometer 6. Auxiliary Devices.
Group 1. Power Supply Fault Code Ust
The Info Center 2 displays: ECU TIME OUT or NO LINK
What the code means: No data communications between the TRS and the Info
Center 2.
Things to check:
Possible causes are no power to the TRS or no data communication between the TRS
ECU and the Info Center 2 but electric power is present.
Check the diagnostic cable for corrosion, open and short circuits between conductors.
Check for a loose or unplugged connection cable between the TRS and the
Info Center 2.
The Info Center 2 displays: PWR iS07638 FAIL
What this code means: No supply on ignition switched line or an intermittent power
loss.
Things to check:
Check truck fuses, 7-way connection, 5-way ABS connection, power cable
connections. Check diagnostic cable for corrosion, loose connection. Check power
cables for intermittent connections.
The Info Center 2 displays: PWR LO VOLT
What this code means: The TRS supply voltage is less than 8 volts.
Things to check:
Check the voltage regulator on the tractor, look for loose connections, check for
corrosion on electrical connectors both on the TRS cables and the auxiliary circuit
on the trailer.
Page 19
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