PLC Select 1M - Henry & Wright Corporation

PLC Select 1M - Henry & Wright Corporation
Installation
Guide
L30041
Rev 9/07
PLC Select ABS (2M)
PLC Select ABS (1M)
Installation/Service Manual for
2S/1M - 4S/2M (2S/2M) Systems
$ 7.00
Table of Contents
Section
Page
Table of Contents.....................................................................................................................
Safety Notice............................................................................................................................
General Operation of PLC Select 1M and 2M..........................................................................
Wheel End Installation..............................................................................................................
Wheel Speed Sensor Installation Configurations 1M and 2M Systems....................................
1
2
3
4-5
6 - 11
PLC Select ABS (1M) Installation Manual for 2S/1M Systems............................................
PLC Select 1M - System Components.....................................................................................
PLC Select 1M - ECU/Valve Units OverView............................................................................
PLC Select 1M and 2M Valve Orientation.................................................................................
PLC Select 1M - Installation Overview (4 Port FFABS Systems 2/S1M)..................................
PLC Select 1M - Installation Overview (6 Port ABS System 2S/1M)........................................
PLC Select 1M - PLC Select FFABS 2S/1M (Plumbing Schematic).........................................
PLC Select 1M - PLC Select 6 Port ABS 2S/1M (Plumbing Schematic) ..................................
PLC Select 1M - ABS Power Cord - Pin Out - 1M ECU OverView............................................
PLC Select 1M - 2S/1M System Wiring....................................................................................
PLC Select 1M - Speed Sensor Cable Routing.........................................................................
12
13
14 - 15
16
17
18
19
20
21
22
23 - 24
PLC Select ABS (2M) Installation Manual for 4S/2M Systems............................................
PLC Select 2M - System Components......................................................................................
PLC Select 2M - ECU/Valve Units Overview.............................................................................
PLC Select 2M - Installation Overview (FFABS System 4S/2M)...............................................
PLC Select 2M - Installation Overview (ABS Relay System 4S/2M).........................................
PLC Select 2M - PLC Select FFABS 4S/2M (Plumbing Schematic) (Side-By-Side)................
PLC Select 2M - PLC Select 2 Port ABS 4S/2M (Plumbing Schematic) (Side-By-Side).........
PLC Select 2M - PLC Select FFABS 4S/2M (Plumbing Schematic) (Axle-By-Axle)................
PLC Select 2M - PLC Select 2 Port ABS 4S/2M (Plumbing Schematic) (Axle-By-Axle).........
PLC Select 2M - PLC Select 2M ECU Overview.......................................................................
PLC Select 2M - 4S/2M System Wiring (Side-By-Side)...........................................................
PLC Select 2M - 4S/2M System Wiring (Axle-By-Axle)...........................................................
PLC Select 2M - 4S/2M System Wiring Information..................................................................
PLC Select 2M - Speed Sensor Cable Routing.........................................................................
25
26
27 - 28
29
30
31
32
33
34
35
36
37
38
39 - 40
Testing and Diagnostic Tools:
PLC Select 1M - 2M End of line Testing/Road Testing.............................................................. 41 - 42
Diagnostic Tools PLC PC Diagnostic........................................................................................ 43 - 45
Diagnostic Tools - Blink Code Diagnostics................................................................................ 46 - 50
Info Center Information:
Info Center Manual L31158 “Reference”...................................................................................
Tire Scale Factor Chart:
PLC Select 1M - 2M Tire Scale Factor Chart............................................................................
PLC Select 1M - 2M Diagnostics:
PLC Select 1M - 2M Troubleshooting ABS Warning Light........................................................
PLC Select 1M - 2M Diagnostics Codes...................................................................................
Page 1 Rev. 5.0
51
52
53
54 - 58
Safety Notice:
This installation manual describes the correct installation procedures for the Haldex PLC
Select 1M and 2M for trailers. The PLC Select 1M and 2M may be used with either Drum
or Disc Brakes. Care must be taken during each phase of the installation in order to ensure
the system is installed correctly.
Safety First !
Please follow your company’s safety procedures when you install this equipment. Be sure
that you understand all instructions before you begin.
Note: Remove all air pressure and electrical power from the brake system before
beginning work.
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 error or misapplication of the product. Final
determination of the suitability of the products for 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 Installation/Service Manual are current at
the time of printing. Haldex Brake Products Corp. reserves the right to discontinue or modify
its models and/or procedure and to change specifications at any time without notice.
All rights reserved.
Material may only be reproduced with written permission of Haldex.
Page 2 Rev. 5.0
General Operation of
PLC Select 1M and 2M
The Haldex PLC Select 1M and 2M are the newest ECU platforms in the PLC family of Trailer ABS
products and is the latest offering in the state-of-art PLC Select concept.
As with other ABS systems, PLC Select 1M and 2M are designed to use electronic management of
service braking to avoid wheel lock-up, during all types of braking conditions, and on all road surface
conditions, to improve control and stability of a braking trailer to permit air brake compliance with
FMVSS 121.
The primary components of Haldex ABS are the ECU (Electronic Control Unit), ABS Modulator Valves
(solenoid operated air valves), wheel speed sensor (Sensors), and Exciter Rings (exciter).
The inductive sensors are mounted at the designated wheel ends in conjunction with exciter (notched
rings). The ECU reads electric impulses generated from the rotating exciter, as the wheels turn.
The ECU is designed to recognize when the rate of wheel speed deceleration is approaching
wheel-lock (no longer rotating) which would result in skidding. During a braking event, the ECU
continuously monitors the rate of deceleration so that it can automatically intervene into the
operation of the ABS Modulator Valve(s) to maintain stability during braking:
- When the rate of deceleration approaches wheel-lock the ECU sends electrical
signals to the ABS Modulator Valve(s) to reduce air pressure to the service brake
chambers which reduces braking (to maximize stability);
- When the rate of deceleration returns to a level above the wheel-lock threshold the
ECU sends electrical signals to the ABS Modulator Valve(s) to increase pressure to the
service brake chambers which increases braking.
- This iterative process of decreasing and increasing braking takes place in
milliseconds and continues as long as the deceleration rate is in jeopardy of wheel-lock
to help assure vehicle stability.
The Haldex PLC Select 1M is positioned as a 2S/1M system for Semi-Trailers and Dollies using
2 Sensors and 1 Modulator (ABS Valve).
Note: Haldex recommends our 2S/1M SLH product as a more cost effective solution to meet
minimum FMVSS121 requirements for Semi-Trailer and Dollies, and in most applications can provide
comparable performance as 2M systems.
The Haldex PLC Select 2M is positioned as a 4S/2M system using 4 Sensor and 2 Modulators (ABS
Valves). Although it can be used for 2S/2M applications, Haldex recommends our 2S/1M SLH
product as comparable performance and more economical.
Although a 4S/2M is only required for Full Trailers to comply with FMVSS 121 it can provide improved
performance in certain applications, and we encourage you to consult your Haldex representative
for a recommendation to fit your specific application needs and/or preferences. All other braked
Semi-Trailer and Dollies comply with FMVSS 121 using a 2S/1M system.
FMVSS 121 specifies that “Blue Wire” (J560 connector) be allocated as “permanent power” for ABS
operation. In the event of a failure or malfunction of the permanent power circuit the ABS system will
operate on power from the stoplight circuit (i.e. when the brakes are applied). If the power fails in both
circuits the ABS system reverts to a standard braking system.
Page 3 Rev. 5.0
Wheel End Installation
The radial clocking position should be
between 9 and 3 o’clock. While the
ABS performance is not affected with
sensor location in the lower half of the
axle, the structural integrity of the axle
could be compromised.
12 o’clock
Note: The sensor block
should not interfere with
any wheel end hardware.
9 o’clock
3 o’clock
Sensor Blocks
Axle
Sensor Block allowable placement
Exciter Ring
.156 ± .031
Sensor Block
CenterLine (CL)
Sensor
No more than
.080 off center
(Above or Below)
The clearance between the block and
exciter ring should be 0.156 ± .031”.
Any deviation will result in a reduction
of the wheel speed sensor signal
output.
Axle Hub
In general, the position of the wheel speed
sensor center axis to the exciter right surface
should be as close as possible to a 90° angle
in both direction. Any deviation will result in a
reduction of the wheel speed sensor signal
output.
Note: The sensor block is
generally welded to the axle.
Refer to axle manufacturer’s
manual to ensure that welding
won’t affect structural integrity.
Sensor Block is
normally welded
to axle housing.
Exciter Ring
± 2.5°
± 2.5°
Squareness
Center Line
Page 4 Rev. 5.0
Wheel End Installation Cont.
.530/.470
125
Exciter Ring Installation
.06 Radius
6.00 Dia
Max. Seal
Bore
Use a wire brush to
clean area on hub
before mounting the
exciter ring.
6.501 Dia
6.499 Dia
.03 x 15° Chamfer
Hub
Exciter Ring Machining
1. Heat the exciter ring uniformly to approximately 350° F.
2. Place the exciter ring on the machined area of the axle hub.
3. Make sure the exciter ring fits squarely on the machined
surface.
4. When the exciter ring cools, it will shrink fit onto the hub.
5. Make sure the exciter ring fits tightly onto the machined area
and does not slip.
Ensure that the exciter ring fits
squarely against the shoulder.
Exciter Ring
Hub
100 Tooth
80 Tooth
Note: Some application with small wheel/tires may require 80 tooth exciters.
Reference “Tire Scale Factor Chart” on page 52.
Page 5 Rev. 5.0
Wheel Speed Sensor Installation
2S/1M Configurations
Sensors should be installed on the axle that locks first when the trailer is
unloaded. Recommended locations are shown below. The 1A sensor
should be installed on the curb side, and the 1B sensor should be installed
on the road side of the trailer. Make sure sensors are pushed firmly
against the exciter rings.
Dollies and Single Axle Trailers (2 or 6 Ports Valve)
“For Dollies, Single Axle Trailers, and Steer Axles, Haldex recommends the A8 ECU configuration”
Spring Suspension
1A
1A
(CurbSide)
(CurbSide)
(RoadSide)
(RoadSide)
Legend:
King Pin
Speed Sensor
ECU with ABS Val v e
1B
1B
Multi-Axle Trailers (4 or 6 Port Valves)
Spring Suspension
Spring Suspension
1A
1A
(CurbSide)
(CurbSide)
(RoadSide)
(RoadSide)
1B
1B
Air Suspension
Air Suspension
1A
1A
(CurbSide)
(CurbSide)
(RoadSide)
(RoadSide)
1B
1B
Page 6 Rev. 5.0
Wheel Speed Sensor Installation
2S/2M Configurations (Side-By-Side)
Sensors should be installed on the axle that locks first when the trailer is unloaded.
Recommended locations are shown below. The 2A sensor should be installed on the curb
side, and the 2B sensor should be installed on the road side of the trailer. Make sure sensors
are pushed firmly against the exciter rings.
Note:
The 2S/2M configuration does not offer any meaningful performance benefit over a 2S/1M
SLH-A7 configuration, and is not a preferred system. To obtain additional performance
beyond a 2S/1M configuration, Haldex recommends the use of a 4S/2M System
Legend:
Multi-Axle Trailers
King Pin
Speed Sensor
ABS Valve ( Blue Channel)
ECU with ABS Valve ( Yellow Ch an n el)
Spring Suspension
Spring Suspension
2A
2A
(CurbSide)
(CurbSide)
(RoadSide)
(RoadSide)
2B
2B
Air Suspension
Air Suspension
2A
2A
(CurbSide)
(CurbSide)
(RoadSide)
(RoadSide)
2B
Page 7 Rev. 5.0
2B
Wheel Speed Sensor Installation
4S/2M Configurations (Side-By-Side)
The placement of the sensors at the wheel end is an important consideration. Incorrect
installation of the sensors and exciter will result in poor or no ABS operation. The “yellow
markings” sensors, connections and axle locations must go to the yellow ABS valve as shown
below. The same holds true for the “blue markings” valve.
On a 4S/2M Side-By-Side configuration, the (blue modulator) lead must be connected
to the valve that controls the Curb Side wheel ends and are sensed by the blue sensors
(3A and 2A). The (yellow valve) cable lead must be connected to the valve that
controls the Road Side wheel ends and is sensed by the yellow sensors (3B and 2B).
The schematic below shows the proper placement of the sensors and valve leads (the king pin
indicates the front of the trailer). Make sure sensors are pushed firmly against the exciter
rings.
Legend:
King Pin
Speed Sensor
ABS Valve ( Blue Channel)
ECU with ABS Valve ( Yellow Channel)
Multi-Axle Trailers
Spring Suspension
3A
2A
Spring Suspension
3A
(CurbSide)
(CurbSide)
(RoadSide)
(RoadSide)
3B
2B
3B
Air Suspension
3A
2A
3A
(CurbSide)
(RoadSide)
(RoadSide)
2B
2B
Air Suspension
(CurbSide)
3B
2A
3B
2A
2B
Page 8 Rev. 5.0
Wheel Speed Sensor Installation
4S/2M (Side-By-Side) Lift Control:
On 4S/2M Side-By-Side installation, the sensed wheels “3A” and “3B” can be used on a lift
axle. The sensed wheels “2A” and “2B” must remain on the ground at all times.
Note: Indirectly controlled axles (axles without sensors, but controlled by ABS valves) may be
lifted regardless of the configuration. Make sure sensors are pushed firmly against the exciter
rings.
Direct axle has ABS Sensors. Indirect axle has no sensors but is ABS modulated by an ABS
valve.
Legend:
King Pin
Sp e e d S e n so r
A B S Val ve (B lu e C h annel)
E C U w i th A B S Val ve ( Yellow Channel)
3A
2A
3A
2A
Lift Axle 3B
2B
(CurbSide)
(CurbSide)
(RoadSide)
(RoadSide)
3B
2B
Lift Axle
Wrong
3A
Correct
2A
(CurbSide)
(CurbSide)
(RoadSide)
(RoadSide)
Lift Axle
3B
Correct
Page 9 Rev. 5.0
2B
Lift Axle
3A
2A
3B
2B
Correct
Lift Axle
Wheel Speed Sensor Installation
4S/2M Configurations (Axle-By-Axle)
The placement of the sensors at the wheel end is an important consideration. Incorrect
installation of the sensors and exciter will result in poor or no ABS operation. The “yellow
markings” sensors, connections and axle locations must go to the yellow ABS valve as shown
below. The same holds true for the “blue markings” valve.
On a 4S/2M Axle-By-Axle configuration, the (blue modulator) lead must be connected to
the valve that controls the Front Axle wheel ends and is sensed by the blue sensors (3A
and 2A). The (yellow valve) cable lead must be connected to the valve that controls the
Rear Axle wheel ends and is sensed by the yellow sensors (3B and 2B).
The schematic below shows the proper placement of the sensors and valve leads (the king pin
indicates the front of the trailer). Make sure sensors are pushed firmly against the exciter
rings.
Legend:
Multi-Axle Trailers
King Pin
Speed Sensor
ABS Valve ( Blue Channel)
ECU with ABS Valve ( Yellow Channel)
Spring Suspension
2A
Spring Suspension
2B
(CurbSide)
(CurbSide)
(RoadSide)
(RoadSide)
3A
3B
Air Suspension
2A
2B
(CurbSide)
(RoadSide)
(RoadSide)
3B
2B
3A
3B
Air Suspension
(CurbSide)
3A
2A
2A
2B
3A
3B
Page 10 Rev. 5.0
Wheel Speed Sensor Installation
4S/2M (Axle-By-Axle) Lift Control:
On 4S/2M Axle-By-Axle installation, sensed wheels (wheels with ABS sensors) CAN NOT be
on lift axles. Lifting a sensed axle in this configuration will create an ABS fault. ABS operation
will then be suspended until the ABS power has been cycled and all sensed wheels are again
rolling on the road surface.
Note:
Indirectly controlled axles (axles without sensors, but controlled by ABS valves) may be lifted
regardless of the configuration. Make sure sensors are pushed firmly against the exciter
rings.
Legend:
King Pin
Speed Sensor
ABS Valve ( Blue Channel)
ECU with ABS Valve ( Yellow Ch an n el)
2A
2B
(CurbSide)
(CurbSide)
(RoadSide)
(RoadSide)
3A
3B
Lift Axle
Wrong
2A
2B
(CurbSide)
(RoadSide)
(RoadSide)
3A
Correct
Page 11 Rev. 5.0
2B
3A
3B
Lift Axle
Wrong
(CurbSide)
Lift Axle
2A
3B
Lift Axle
2A
2B
3A
3B
Correct
Lift Axle
PLC Select ABS (1M)
Installation/Service Manual
for
2S/1M Systems
Page 12 Rev. 5.0
PLC Select 1M System Components
“See Haldex Trailer ABS Service Components Catalog L20243
for additional information on Haldex ABS Products”
Haldex Supplied Items
Required / Optional Supplier Section
PLC Select 1M
(Valves)
Trailer Brake Control Valve
(Haldex TBCV or RT4)
FFABS Valve
Trailer ABS Power Cable
90° Degree Sensor and
Sensor Extension
6-Port Valve
2-Port Valve
Sensor Block Clip
Haldex Diagnostic Tools
ABS Light
Recommended Installation Aids
7-way Diagnostic
Interface Cable
Software
3-Way Clip
Sensor Hose Clip
PLC PC Diagnostics Kit
(PC not included)
J1708/PLC
Adapter
Tie Strap
Sensor
Extension
Retainer Clip
PLC Info Center
Page 13 Rev. 5.0
PLC Select 1M ECU/Valve Units Overview
(2 Port) FFABS Valve
PLC Select 1M ECU
Solenoid
Spring Brake
Exhaust
Service/Control Port
Service Brake Delivery
Service Brake Exhaust
Service Brake Delivery
Spring Brake Delivery
Emergency/Supply
Reservoir Port (1/2” and 3/4” NPT)
Spring Brake Delivery
Tighten nipple (torque 50 ft. lb.)
Jam Nut (torque 30 ft. lb.)
Notes: - (4) Port FFABS Valve is the most commonly used for Tandem Axle Trailers.
- All ports are 3/8” NPT except reservoir nipple (1/2” and 3/4” NPT).
- Service/Control and Emergency/Supply ports have serviceable filter/screen installed.
Page 14 Rev. 5.0
PLC Select 1M ECU/Valve Units Overview
6 Port ABS Relay Valve
PLC Select 1M ECU
Solenoid
Service Brake Deliveries
Control Port
Service Brake Deliveries
1/2” NPT Reservoir Port
2 Port ABS Relay Valve
PLC Select 1M ECU
Solenoid
Control Port
Service Brake Delivery
Service Brake Delivery
1/2” NPT Reservoir Port
Note: All ports are 3/8” NPT except the reservoir port is 1/2” NPT.
Service
3/8” NPT Control Port
Trailer Brake Control Valve
3/8” NPT Spring Brake
Delivery Ports
Note:
1.
2.
1/2” NPT Reservoir Port
Emergency
3/8” NPT Supply Port
3/8” NPT Spring Brake
Delivery Ports
All ports are 3/8” NPT except the reservoir port is 1/2” NPT.
Service/Control and Emergency/Supply ports have Serviceable Filter/Screen installed
Page 15 Rev. 5.0
PLC Select 1M & 2M
Valve Orientation
The ABS Valve Solenoid must be installed toward the top of the trailer
UP
GROUND
Typical tank mount valve orientation
1.
Install fittings into valve. Sealant is not required on plastic threads or on fittings that
go into plastic. DO NOT use teflon tape on fittings. It can break off and contaminate
the air system.
2.
For plastic ports, hand tighten fittings then rotate 1 to 1-1/2 additional turns. The
maximum torque valve allowed is 210 in-lb.
3.
Install valve nipple into reservoir port. Use 7/8” wrench to tighten the nipple.
4.
Using a 1-1/2” wrench on the jam nut, while holding the nipple with the 7/8” wrench.
(see detail below).
5.
Attach hoses to appropriate brake chambers. Use liquid thread sealant sparingly on all
fittings (Loctite PST565 or equivalent).
Note: If frame mounted follow same procedure for valve orientation.
Valve solenoid on a 2-port relay, 6-port relay or FFABS must be facing up when the
trailer is in normal operation or service/ABS performace could be effected
Tighten nipple (torque 50 ft. lb.)
Use 7/8” Wrench
Page 16 Rev. 5.0
Jam Nut (torque 30 ft. lb.)
Use 1-1/2” Wrench
PLC Select 1M Installation Overview
(4 Port FFABS System) Plumbing 2S/1M
Note: The slider chassis is shown upside down in figure below
Blue = Service/Control
Red =Emergency/Supply
5-Way ABS
Power Connector
PLC Select 1M (FFABS)
These are the general components that make up the Haldex PLC Select 1M. The PLC Select
1M can be used on Single, Tandem, and Tri-Axle vehicles. For other configurations contact
Haldex Engineering Support.
Page 17 Rev. 5.0
PLC Select 1M Installation Overview
(6 Port ABS System) Plumbing 2S/1M
(Trailer Brake Control Valve is required)
Note: The slider chassis is shown upside down in figure below
Trailer Brake
Control Valve
(TBCV)
Blue = Service/Control
Red =Emergency/Supply
5-Way ABS
Power Connector
PLC Select
(6 Port ABS Valve)
These are the general components that make up the Haldex PLC Select 1M. When an ABS
Relay Valve is used, a Trailer Brake Control Valve is required such as Haldex (TBCV) or
(RT-4) valve. The PLC Select 1M can be used on Single, Tandem, and Tri-Axle vehicles. For
other configurations contact Haldex Engineering Support.
Page 18 Rev. 5.0
PLC Select FFABS 2S/1M
(4 Delivery Ports)
• Air suspension typically sense rear axle
• Spring suspension typically sense front axle
PLC Select 1M (FFABS)
Plumbing Schematic (2S/1M)
Sensor 1A
(CurbSide)
Sensor 1B
(RoadSide)
Legend:
Service/Control Line
Emergency/Supply Line
Sensor Line
AIR BRAKE COMPONENTS AND SYSTEM SCHEMATIC ARE DESIGNED TO ALLOW COMPLIANCE
WITH FMVSS 121.
THIS SCHEMATIC IS FOR INFORMATION PURPOSE ONLY. IT IS THE VEHICLE MANUFACTURERS
ULTIMATE RESPONSIBILITY TO CERTIFY THEIR SYSTEM MEETS ALL APPLICABLE
REGULATIONS.
PIPE NIPPLES USED TO MOUNT BRAKE VALVES MUST BE HEAVY WALL TYPE PER SAE J514.
Page 19 Rev. 5.0
PLC Select 6 Port ABS 2S/1M
with Trailer Brake Control Valve
• Air suspension typically sense rear axle
• Spring suspension typically sense front axle
PLC Select
(6 Port ABS Valve)
Trailer Brake Control Valve
(TBCV)
Plumbing Schematic (2S/1M)
Sensor 1A
(CurbSide)
Sensor 1B
(RoadSide)
Legend:
Service/Control Line
Emergency/Supply Line
Sensor Line
Page 20 Rev. 5.0
AIR BRAKE COMPONENTS AND SYSTEM SCHEMATIC ARE DESIGNED TO ALLOW COMPLIANCE
WITH FMVSS 121.
THIS SCHEMATIC IS FOR INFORMATION PURPOSE ONLY. IT IS THE VEHICLE MANUFACTURERS
ULTIMATE RESPONSIBILITY TO CERTIFY THEIR SYSTEM MEETS ALL APPLICABLE
REGULATIONS.
PIPE NIPPLES USED TO MOUNT BRAKE VALVES MUST BE HEAVY WALL TYPE PER SAE J514.
ABS Power Cord - Pin Out
Pin Out for ABS
Power Cord:
SAE J560
B
A
E
D
C
“A” - Stop Light (Red)
“B” - Permanent (Blue)
“E” - Ground (White)
“C” - Cab Light (White/Yellow)
“D” - Trailer Light (Green/White)
Haldex recommends that the Red, White
and Blue should be 12 AWG Min.
Note: Federal regulations mandate that new trailers, built after 3/1/2001, have the capability to
provide an ABS fault signal from the trailer ABS into the tractor for a In-Cab trailer ABS Lamp.
Option (1) is through Industry standard “PLC4Trucks” multiplexing (the signal is carried on Pin
7). Option (2) is hard wire (through Pin C of the power connector via the ISO 3731connector).
The requirement for the trailer mounted ABS light remains in effect until March of 2009.
PLC Select 1M ECU Overview
Correct location of the speed sensors at the wheel ends is critical for proper ABS operation and
troubleshooting. The PLC Select 1M will adjust the braking air pressure in response to the input from
the speed sensors. Incorrect installation or location of speed sensors and exciter rings will result in
poor ABS performance or sensors crossed leading to incorrect diagnostics troubleshooting.
The figure below shows the correct power and speed sensor connections on the PLC Select 1M ECU
(Electronic Control Unit).
PLC Select 1M
ECU (Electronic Control Unit)
ABS Power Connector
ABS Power Cord
ABS modulator valve
solenoid connector
Sensor S1A (CurbSide) Red Channel
Sensor S1B (RoadSide) Red Channel
Note: When servicing always apply small amount
of dielectric grease to electrical connections.
Page 21 Rev. 5.0
2S/1M System Wiring - PLC Select
Note: Cover all exposed connections
before painting
Exciter Ring
Apply dielectric grease to
all electrical connections
S1A (CurbSide)
Red Channel
ABS Power Connection
ECU Sensor Retainer Clip
Solenoid Connection
hand tighten collar firmly
Exciter Ring
(S1A) Top
(S1B) Bottom
S1B (RoadSide)
Red Channel
ABS Light (mounted on RoadSide of
trailer, at the rear). LED ABS lamp is
acceptable.
7-Way Wiring
SAEJ560
*Distance of ABS Light from Red
rear clearance side marker light is
5.9” inches to 23” inches max. LED
lamp are acceptable.
Tie Strap
Only the ABS power cord should be routed
through the support clip.The ABS Power Cord
is secured to the bracket and is secured with a
tie strap
Page 22 Rev. 5.0
Speed Sensor Cable Routing
Sensor Block
Sensor
Sensor Block Clip
Sensor
Block
Sensor
Exciter Ring
Note: Lightly grease the sensor with a Lithium
based grease. Use Dow Corning Molycoat CU7439
or equivalent.
Push sensor firmly
against the exciter ring
1.
2.
3.
4.
5.
6.
7.
Insert the sensor block clip into the sensor block.
Insert the sensor into the sensor block clip and push until it is firmly against the exciter
ring(first grease the sensor with a lithium based grease).
Route all sensor cables through vacant holes, etc. Use a grommet or corrugated
tubing if the cables are touching sharp edges.
Attach cable ties as needed to ensure the cable is secured to the axle housing.
Typical routing of cable is along the brake chamber air hose.
Use sensor cable hose clip (highly recommended) or double tie straps when attaching
the cables to the air hoses.
Sensor cable hose clip or double tie straps should be no farther then 12” inches apart.
Note: Use caution when attaching tie strap to air hoses. Over tightening can damage a cable
and cause an ABS sensor failure.
Page 23 Rev. 5.0
Speed Sensor Cable Routing
This manual depicts speed sensor cable routing along the vehicle axles. This was shown for
clarity. Although it is possible to route cables this way, the preferred approach is to route the
speed sensor cables along the air hoses between the ABS valve and the brake actuators.
Tie straps may be used to secure sensor cable to the axle. Although tie straps may be used, a
more reliable installation results if single clips are used to secure speed sensor cables to air
hoses.
Leave some slack in cables to accommodate movement between chassis components. Excess cable must not be allowed to hang free and must be bundled and attached to the chassis
or air lines to prevent damage due to vibration and abrasion.
A sensor clip is placed
on the hose and sensor
wire.
Single Sensor Hose Clip
Excess cable length may be taken up in either a “short bone” or a “long bone” arrangement
and secured with tie straps. Do not coil the cable into a loop smaller then 4 inches in
diameter. Do not over tighten the tie straps when the cable is coiled, as this could cause a
cable failure.
Push up and and attach tie
straps.
Page 24 Rev. 5.0
Short Cable (short bone)
Long cable (long bone)
PLC Select ABS (2M)
Installation/Service Manual
for
4S/2M (2S/2M) Systems
Page 25 Rev. 5.0
PLC Select 2M System Components
“See Haldex Trailer ABS Service Components Catalog L20243
for additional information on Haldex ABS Products”
Haldex Supplied Items
Required / Optional Supplier Section
Trailer Brake Control Valve
(Haldex TBCV or RT4)
6 Port Relay
PLC Select 2M
Trailer ABS Power Cable
90° Degree Sensor and
Sensor Extension
2 Port Relay
Solenoid Cable
Haldex Diagnostic Tools
Sensor Block Clip
ABS Light
Recommended Installation Aids
7-way Diagnostic
Interface Cable
Software
3-Way Clip
Sensor Hose Clip
PLC PC Diagnostics Kit
(PC not included)
J1708/PLC
Adapter
(Needed for
PC Diagnostic
only)
PLC Info Center
Tie Strap
Sensor
Extension
Retainer
Clip
Page 26 Rev. 5.0
PLC Select 2M ECU/Valve Units Overview
4 Port FFABS Valve
Control Port
Solenoid
Service Brake Deliveries
Service Brake Exhaust
Spring Brake Delivery
Reservoir Port
PLC Select 2M ECU
Control Port
Service Brake Deliveries
Emergency/Supply
Spring Brake Exhaust
Spring Brake Delivery
Tighten nipple (torque 50 ft. lb.)
Tighten jam nut (torque 30 ft. lb.)
Notes: - (2) Port FFABS Valve is the most commonly used for Tandem Axle Trailers.
- All ports are 3/8” NPT except reservoir nipple (1/2” or 3/4” NPT).
- Service/Control and Emergency/Supply ports have serviceable filter/screen installed.
Page 27 Rev. 5.0
PLC Select 2M ECU/Valve Units Overview
6 Port ABS Relay Valve
Service
Control Port
PLC Select 2M ECU
Service Control Port
Solenoid
Service Brake Deliveries
Service Brake Deliveries
Reservoir Port
2 Port ABS Relay Valve
Service
Control Port
PLC Select 2M ECU
Service Control Port
Solenoid
Service Brake Delivery
Service Brake Delivery
Reservoir Port
Note: All ports are 3/8” NPT except the reservoir port is 1/2” NPT.
Trailer Brake Control Valve
3/8” NPT Control Port
3/8” NPT Spring Brake
Delivery Ports
Note:
1.
2.
3.
3/8” NPT Supply Port
1/2” NPT Reservoir Port
3/8” NPT Spring Brake
Delivery Ports
All ports are 3/8” NPT except the reservoir port is 1/2” NPT.
Service/Control and Emergency/Supply ports have Serviceable Filter/Screen installed.
Install this valve as shown. Exhaust port pointing horizontal.
Page 28 Rev. 5.0
PLC Select 2M Installation Overview
(FFABS System) Plumbing 4S/2M
These are the general components that make up the Haldex PLC Select 2M, and they can be
configured in a Side-By-Side or Axle-By-Axle installation. The PLC Select 2M can be used on
other vehicle configurations contact Haldex Engineering Support.
Note: The slider chassis is shown upside down and plumbed (Axle-By-Axle) in figure
below.
2 Port
ABS Relay Valve
(Blue Channel)
Service/Control
(Blue Channel)
Emergency/Supply
(Red Channel)
5-Way ABS
Power Connector
Page 29 Rev. 5.0
PLC Select 2M (FFABS)
(Yellow Channel)
PLC Select 2M Installation Overview
(ABS Relay System) Plumbing 4S/2M
(Trailer Brake Control Valve is required)
These are the general components that make up the Haldex PLC Select 2M, and they can be
configured in a Side-By-Side or Axle-By-Axle installation. The PLC Select 2M can be use on
other vehicle configurations contact Haldex Engineering Support. When an ABS Relay Valve
is used, a Trailer Brake Control Valve is required such as a Haldex TBCV or RT4 Valve.
Note: The slider chassis is shown upside down and plumbed (Axle-By-Axle) in figure
below.
2 Port
ABS Relay Valve
(Blue Channel)
Trailer Brake
Control Valve
(TBCV)
Service/Control
(Blue Channel)
Emergency/Supply
(Red Channel)
5-Way ABS
Power Connector
PLC Select 2M (ABS Relay Valve)
(Yellow Channel)
Page 30 Rev. 5.0
PLC Select FFABS 4S/2M
(2 Delivery Ports)
PLC Select FFABS
(2 Delivery Ports)
2 Port Relay Valve
Plumbing Schematic (Side-By-Side)
Legend:
Service/Control Line
Emergency/Supply Line
Sensor Line
Page 31 Rev. 5.0
Sensor 3A
(CurbSide)
Sensor 2A
(CurbSide)
Sensor 3B
(RoadSide)
Sensor 2B
(RoadSide)
AIR BRAKE COMPONENTS AND SYSTEM SCHEMATIC ARE DESIGNED TO ALLOW COMPLIANCE
WITH FMVSS 121.
THIS SCHEMATIC IS FOR INFORMATION PURPOSE ONLY. IT IS THE VEHICLE MANUFACTURERS
ULTIMATE RESPONSIBILITY TO CERTIFY THEIR SYSTEM MEETS ALL APPLICABLE
REGULATIONS.
PIPE NIPPLES USED TO MOUNT BRAKE VALVES MUST BE HEAVY WALL TYPE PER SAE J514.
PLC Select 2 Port ABS 4S/2M
with Trailer Brake Control Valve
Trailer Brake Control Valve
(TBCV)
PLC Select ABS 2M
(2 Delivery Ports)
2 Port Relay Valve
Plumbing Schematic (Side-By-Side)
Legend:
Service/Control Line
Emergency/Supply Line
Sensor Line
Sensor 3A
(CurbSide)
Sensor 2A
(CurbSide)
Sensor 3B
(RoadSide)
Sensor 2B
(RoadSide)
AIR BRAKE COMPONENTS AND SYSTEM SCHEMATIC ARE DESIGNED TO ALLOW COMPLIANCE
WITH FMVSS 121.
THIS SCHEMATIC IS FOR INFORMATION PURPOSE ONLY. IT IS THE VEHICLE MANUFACTURERS
ULTIMATE RESPONSIBILITY TO CERTIFY THEIR SYSTEM MEETS ALL APPLICABLE
REGULATIONS.
PIPE NIPPLES USED TO MOUNT BRAKE VALVES MUST BE HEAVY WALL TYPE PER SAE J514.
Page 32 Rev. 5.0
PLC Select FFABS 4S/2M
(2 Delivery Ports)
PLC Select FFABS
(2 Delivery Ports)
2 Port Relay Valve
Plumbing Schematic (Axle-By-Axle)
Legend:
Service/Control Line
Emergency/Supply Line
Sensor Line
Page 33 Rev. 5.0
Sensor 2A
(CurbSide)
Sensor 2B
(CurbSide)
Sensor 3A
(RoadSide)
Sensor 3B
(RoadSide)
AIR BRAKE COMPONENTS AND SYSTEM SCHEMATIC ARE DESIGNED TO ALLOW COMPLIANCE
WITH FMVSS 121.
THIS SCHEMATIC IS FOR INFORMATION PURPOSE ONLY. IT IS THE VEHICLE MANUFACTURERS
ULTIMATE RESPONSIBILITY TO CERTIFY THEIR SYSTEM MEETS ALL APPLICABLE
REGULATIONS.
PIPE NIPPLES USED TO MOUNT BRAKE VALVES MUST BE HEAVY WALL TYPE PER SAE J514.
PLC Select 2 Port ABS 4S/2M
with Trailer Brake Control Valve
Trailer Brake Control Valve
(TBCV)
PLC Select ABS 2M
(2 Delivery Ports)
2 Port Relay Valve
Plumbing Schematic (Axle-By-Axle)
Legend:
Service/Control Line
Emergency/Supply Line
Sensor Line
Sensor 2A
(CurbSide)
Sensor 2B
(CurbSide)
Sensor 3A
(RoadSide)
Sensor 3B
(RoadSide)
AIR BRAKE COMPONENTS AND SYSTEM SCHEMATIC ARE DESIGNED TO ALLOW COMPLIANCE
WITH FMVSS 121.
THIS SCHEMATIC IS FOR INFORMATION PURPOSE ONLY. IT IS THE VEHICLE MANUFACTURERS
ULTIMATE RESPONSIBILITY TO CERTIFY THEIR SYSTEM MEETS ALL APPLICABLE
REGULATIONS.
PIPE NIPPLES USED TO MOUNT BRAKE VALVES MUST BE HEAVY WALL TYPE PER SAE J514.
Page 34 Rev. 5.0
PLC Select 2M ECU Overview
“Most compact package offers the best
ABS solution for 4S/2M application”
“Sensors S2A and S3A are
Not Used with 2S/1M
Configuration”
Sensor
S2B
(Yellow)
Sensor
S2A
(Blue)
Sensor
S3A
(Blue)
Sensor
S3B
(Yellow)
Modulator Valve Solenoid Cable
(Yellow Channel)
PLC Select 2M
Electronic Control Unit (ECU)
ABS Power Connector
Modulator Valve Solenoid Cable
(Blue Channel)
(Not Used with 2S/1M Configuration)
ABS Power Cable
Verify connection locking tab is facing downward and secure.
If cable can be removed without releasing locking tab, verify
connector orientation.
Locking Tab
Tab locked in position
Correct location of the speed sensors at the wheel ends is critical for proper ABS operation. The PLC
Select 2M will adjust the braking air pressure in response to the input from the speed sensors.
Incorrect installation or location of speed sensors and exciter rings will result in poor ABS performance
or sensors crossed leading to incorrect diagnostic troubleshooting. In the figure above shows the correct power and speed sensor connections on the PLC Select 4S/2M ECU (Electronic Control Unit)
“See Haldex Trailer ABS Service Components Catalog L20243 for sensor extensions if short
sensors are used”.
Page 35 Rev. 5.0
4S/2M System Wiring - PLC Select
(Side-By-Side)
S2A (CurbSide)
Curbside
Roadside
S3A - S2A - S2B - S3B
S2B (RoadSide)
4 Port FFABS
Valve with ECU
(Yellow Channel)
(RoadSide)
ABS Power Connection
2 Port ABS Valve
(Blue Channel)
(CurbSide)
S3A (CurbSide)
S3B (RoadSide)
ABS Light
7-Way Wiring
4S/2M Wiring Overview
Apply dielectric grease to
all electrical connections
*Distance of ABS Light
from road side red rear
clearance side Marker
light is 5.9” inches to
23” inches max. LED
ABS lamps are
acceptable.
Page 36 Rev. 5.0
4S/2M System Wiring - PLC Select
(Axle-By-Axle)
S2B (CurbSide)
S3B (RoadSide)
Axle 2
Axle 1
S3A - S2A - S2B - S3B
4 Port FFABS
Valve with ECU
(Yellow Channel)
(Rear Axle)
Power Connection
2 Port ABS Valve
(Blue Channel)
(Front Axle)
S2A (CurbSide)
S3A (RoadSide)
7-Way Wiring
4S/2M Wiring Overview
ABS Light
Apply dielectric grease to
all electrical connections
*Distance of ABS Light
from road side red rear
clearance side Marker
light is 5.9” inches to
23” inches max. LED
ABS lamps are
acceptable.
Page 37 Rev. 5.0
4S/2M System Wiring - PLC Select
Solenoid Connection
hand tighten collar firmly
Solenoid Connector Collar
2 Port ABS Valve
4 Port FFABS Valve
Lock Tab
ABS Power Cable
Fully push the ABS Power Cable onto the ABS Power
Connector and be sure the tab locks into place.
Insert sensors cable into the correct location
on ECU and push sensor clip connector over
sensor cable to secure them in place.
Sensor Clip
Sensor Clip
Page 38 Rev. 5.0
Speed Sensor Cable Routing
Sensor Block
Sensor
Sensor Block Clip
Sensor
Block
Sensor
Exciter Ring
Note: Lightly grease the sensor with a Lithium
based grease. Use Dow Corning Molycoat CU7439
or equivalent.
Push sensor firmly
against the exciter ring
1.
2.
3.
4.
5.
6.
7.
Insert the sensor clip into the sensor block.
Insert the sensor into the sensor clip and push until it is firmly against the exciter ring
(first grease the sensor with a lithium based grease).
Route all sensor cables through vacant holes, etc. Use a grommet or corrugated
tubing when the cables are touching sharp edges.
Attach cable ties as needed to ensure the cable is secured to the axle housing.
Typical routing of cable is along the brake chamber air hose.
Use sensor cable clip (highly recommended) or double tie straps when attaching the
cables to the air hoses.
Sensor cable clip or double tie straps should be no closer than 6” inches and no
farther then 12” inches apart.
Note: Use caution when attaching tie strap to air hoses. Over tightening can damage a cable
and cause an ABS sensor failure.
Page 39 Rev. 5.0
Speed Sensor Cable Routing
This manual depicts speed sensor cable routing along the vehicle axles. This was shown for
clarity. Although it is possible to route cables this way, the preferred approach is to route the
speed sensor cables along the air hoses between the ABS valve and the brake actuators.
Tie straps may be used to secure sensor cable to the axle. Although tie straps may be used, a
more reliable installation results if single clips are used to secure speed sensor cables to air
hoses.
Leave some slack in cables to accommodate movement between chassis components. Excess cable must not be allowed to hang free and must be bundled and attached to the chassis
or air lines to prevent damage due to vibration and abrasion.
A sensor clip is placed
on the hose and sensor
wire.
Single Sensor Hose Clip
Excess cable length may be taken up in either a “short bone” or a “long bone” arrangement
and secured with tie straps. Do not coil the cable into a loop smaller then 4 inches in
diameter. Do not over tighten the tie straps when the cable is coiled, as this could cause a
cable failure.
Push up and and attach tie
straps.
Short Cable (short bone)
Long cable (long bone)
Page 40 Rev. 5.0
End of Line Testing/Road Testing
PLC Select 1M - 2M
Installation Test:
This step will ensure the ABS system is functioning properly,
before the chassis is assembled to the trailer.
Test Equipment:
12 VDC power source (Do Not use a battery charger), power cable with a Packard 5 pin
male power connection, an ABS test light attached, and shop air.
Chassis Test/End Of Line ABS Check:
Procedure:
1.
2.
3.
4.
5.
6.
Charge the Emergency/Supply and Service/Control air systems.
Apply power source to 7-Way receptacle (permanent power).
The ABS Valve(s) should “blow down” first. You will hear a brief shot of air from
each valve. The Blue Channel (remote valve) should blow down first followed by the
Yellow Channel (ECU valve) (for a 2S/1M system the Yellow Channel valve only).
The ABS light should illuminate for about 3 seconds and then turn off.
Using a Info Center or PC verify correct sensor placement by spinning each
wheel end one at a time. Refer to pages 6 - 11 for correct placement. Axle-By-Axle,
or Side-By-Side. Refer to L31158 for Info Center instructions.
When using a PC in conjunction with Haldex PC diagnostics, information such as the
name of the Inspector, the date inspected, or the trailer VIN can be stored in the
ABS ECU.
Note: If the ABS Light never illuminates or stays illuminated during the
ABS check, refer to Troubleshooting Section on page 53 of this manual.
Page 41 Rev. 5.0
End of Line Testing/Road Testing
PLC Select 1M - 2M
Road Test - PLC Select 2M:
Procedure:
1.
2.
3.
4.
5.
Connect a tractor to the trailer and charge the trailer’s air tanks.
Turn on the start switch and ensure that the Warning Light comes on briefly, then
goes out.
Pull the trailer at a speed above 6 mph, make a brake application and hold until the
tractor-trailer has come to a complete stop.
Verify that the ABS Warning Light has remained OFF. If the light remained OFF,
the system is functioning properly.
If the ABS system detected an error during the stop, the Warning Light will be ON. If
the ABS Warning Light never comes ON when the start switch is turned ON, then refer
to the,“No ABS Warning Light Illumination” section on page 53 of this manual. If the
ABS Warning Light stays ON with the start switch on, refer to the “ABS Warning
Light Stays on permanently” section on page 53 of this manual.
Notes:
1.
Disconnect power from the ABS system before testing or making any repairs.
2.
Most ABS problems are related to:
a.
Cut or abraded wires
b.
Corroded connector, or terminals
c.
Connector terminals not latched or seated correctly to mating assemblies
d.
Excessive sensor air gap, sensor clip retention, or wheel bearing end play
e.
Verify sufficient power at the ABS Power Cable (12 - 15V).
3.
After making any repairs go to the “Diagnostic Tools” section of this manual (see
pages 44 - 45 to confirm that the fault is corrected. If fault codes 11 - 16 or 21 - 26
has occurred the Warning Light will remain on with a code 07 when repowered until
the problem has been corrected. The vehicle must be driven above 6 MPH for the
ABS to recognize the problem has been corrected. Then the light will turn off.
Page 42 Rev. 8.0
Diagnostics Tools
SAE 560
7-way Diagnostic
Interface Cable
PLC PC Diagnostics Kit
(PC not included)
Blink Codes
J1708/PLC
Adapter
PLC Info Center
Page 43 Rev. 5.0
Diagnostic Tools
Haldex provides (3) Methods for ABS Diagnostics:
1.
2.
3.
Blink Codes
PLC Info Center
PLC PC Diagnostics
(1) Blink Codes:
ABS fault codes can be accessed using the ABS light without the use of any other tools. The
blink code “Simple Fault Mode” can be activated by pressing on the brake pedal to activate
the trailer brakes and switching ignition power ON, OFF, ON in 1 second intervals. See Blink
Code information on pages 46 - 50.
(2) PLC Info Center:
The PLC Info Center has a screen that can display ABS fault codes plus a number of other
functions. The PLC Info Center only needs to be connected to vehicle permanent power and
ground. (A diagnostic Interface Cable is included to accommodate this connection). An
optional SAE 560 7-Way Diagnostic Interface Cable is also available.
SAE 560
7-Way Diagnostic
Interface Cable
PLC Info Center
Available functions include:
1.
2.
3.
4.
5.
6.
7.
8.
View active fault code(s) (2 digit code) and fault occurrence count.
View stored fault code(s) and fault occurrence count.
Clear stored fault code(s).
View wheel speed sensor identification corresponding to each individual wheel
when rotated.
View sensor and valve configuration code.
View ABS ECU type and serial number.
Energize valve solenoid(s).
Odometer
a) View Odometer, Tire Scale Factor, (Miles or Kilometer), Service Interval,
and Trip Distance.
b) Program Tire Scale Factor (miles or kilometers), and Service Interval.
Reference PLC Info Center Instruction Manual L31158.
Page 44 Rev. 5.0
Diagnostic Tools
(3) PLC PC Diagnostic:
Optional SAE 560 7-Way
Diagnostic Interface Cable
ABS
PC Diagnostic
Software
9 to 25
Way Cable
J1708/PLC
Adapter
PC Diagnostics Kit
(PC not included)
PLC
Interface Cable
PLC PC Diagnostics displays the most information. Available functions include all the
functions of the PLC Info Center as well as:
1.
2.
3.
View ABS ECU Part Number.
Save ABS diagnostic results for a print out of test verification.
Read/Write Trailer and or Service data internally to ABS ECU
Minimum requirements: Pentium II, 32 MB Ram, 233 MHz, Windows 95B, RS232 9 pin
com port
Note: PLC Info Center and PLC PC Diagnostics are not compatible with older generations of
ABS manufactured prior to March 2001.
“Reference PC Diagnostic Instruction Manual L31154”.
Page 45 Rev. 5.0
Blink Code Diagnostics
There are 4 Blink Code Modes:
Mode Description
1
Simple/Wheel Speed Mode
Permanent Power Cycles (1 second ON /
1 second OFF) with service brakes applied.
ON, off, ON
2
Active Faults Mode
ON, off, ON, off, ON
3
Stored Faults / Clear Mode
ON, off, ON, off, ON, off, ON
4
Configuration Mode
ON, off, ON, off, ON, off, ON, off, ON
5
Odometer Mode
ON, off, ON, off, ON, off, ON, off, ON
Procedure for Blink Code Diagnostics:
1.
2.
3.
4.
The trailer must be stationary.
The trailer must be connected to a DC-power supply (10-15 volts). Do not use a
battery charger.
Constant power (10-15 volts) must be provided to the stoplight circuit (apply trailer service
brakes).
Permanent power must be cycled on and off (trailer auxiliary circuit) at 1 second intervals
to reach the desired mode (shown above). If a power source other than a truck is used
a switch must be used to simulate a truck start switch.
Note: Stoplight and Permanent power must be independent for blink code troubleshooting. If
Permanent power is required for your brake lights to operate, then the blink code
diagnostics will not function.
Procedure Notes:
1.
2.
3.
4.
Once a blink mode is entered that mode can only be terminated by completely disconnecting
all trailer power sources.
All modes repeat endlessly. Each repeat is separated by 10 seconds of continuous
light energization.
All codes are separated by 2 seconds of light OFF.
Stored fault codes are followed by an occurrence count which display a blink rate twice
as fast as the fault code blink rate.
Mode 1 - Simple Mode Diagnostics:
This mode has a abbreviated list of fault codes that will display. Fault codes are grouped to simplify the
diagnostics. Up to 3 active codes will be display at one time. These faults need to be repaired before
other active faults can be displayed. See Simple Mode Faults Code Table on next page.
Page 46 Rev. 5.0
Blink Code Diagnostics
Mode 1 - Simple Mode Diagnostics Faults Table (ON, OFF, ON):
Item
Flash Count
Actual Fault
System OK
Light Stays On
07
Sensor 1A
1 Flash
01
Sensor 1B
2 Flashes
02
Sensor 2A
3 Flashes
03
Sensor 2B
4 Flashes
04
Sensor 3A
5 Flashes
05
Sensor 3B
6 Flashes
06
Red Valve
7 Flashes
61, 67, 71, 77, 81, & 87
Blue Valve
8 Flashes
62, 68, 72, 78, 82, & 88
Yellow Valve 9 Flashes
63, 69, 73, 79, 83, & 89
Low Voltage
10 Flashes
90
ECU Failure
11 Flashes
93, 99, & E-Codes
Note: If the simple mode does not show a fault code, but the ABS light remains “ON”
after powering the ABS, there are no active faults present.
Wheel Speed Mode:
Wheel Speed Mode is accessible only when in Simple Mode. This Mode is not activated until
the ECU has received a signal from the wheel speed sensor of a spinning wheel. The hold
solenoid of the modulator valve associated with the particular sensed spinning wheel will be
cycled the same number of times as the lamp flashes. The blink codes for the sensed wheels
are as follows:
S1A: 1 Flash
S2B: 4 Flashes
S1B: 2 Flashes
S3A: 5 Flashes
S2A: 3 Flashes
S3B: 6 Flashes
Note 1:
Spin only one wheel at a time.
Note 2:
Once a wheel is rotated, the ABS light will remain on after the wheel is
stopped until the next wheel is rotated.
Page 47 Rev. 5.0
Blink Code Diagnostics
Mode 2 - Active Faults Mode (ON, OFF, ON, OFF, ON):
In this mode the ABS light displays a numerical fault code sequence for each existing fault, up
to nine fault codes at a time. The nine faults must be repaired before additional active faults
can be displayed. The blink codes used in the Active Fault Mode are related to the Haldex
standard fault codes and are shown on pages 54 - 58.
Example:
Fault code “23” is indicated by the light flashing ON twice for one half
second each time - followed by two seconds of light off followed by
three 1/2 second flashes.
Mode 3 - Stored (Passive) Faults/Clear Mode (ON, OFF, ON, OFF, ON, OFF, ON):
In this mode the ABS light displays a numerical fault code sequence for each stored fault. All
stored faults (not currently active) are displayed in this mode. The light will display up to nine
passive stored faults at a time. The most recent stored fault is displayed last. The blink codes
used in the Passive Stored Fault Mode are related to the Haldex
standard fault codes and are shown on page 54 - 58.
Clearing Stored Codes (Mode 3):
The passive stored fault codes may be cleared by switching ignition power OFF, ON
OFF, ON while the brakes are applied during 10 seconds of light energization that occur
prior to each repeat of the fault code blink sequence. The light will flash rapidly for 10
seconds to show that the fault(s) are being erased.
Stored Mode Fault Occurrences (Mode 3):
The fault code blink sequence is followed by the occurrence count for that fault in
Passive Mode. The occurrence count is displayed after each pair of fault code flashes
in order to differentiate between the code and its occurrence count. Blink code rate
twice as fast as the fault code blink rate.
Page 48 Rev. 5.0
Blink Code Diagnostics
Stored Fault Mode Notes (Mode 3):
1.
A “zero” for codes such as “01” is indicated by a two second light “ON” condition.
All other digits are indicated by a half second light “ON” condition.
Example:
Fault code “23” is indicated by the light flashing ON twice for one half
second each time - followed by two seconds of light off followed by
three 1/2 second flashes. The third flash is the occurrence count and as
1/4 second flashes.
2.
There is a two second light “OFF” delay between the digits in each code.
3.
Code 07 (system OK, vehicle at rest) is displayed as a continuous light “ON”
condition.
Mode 4 - Configuration Mode (ON, OFF, ON, OFF, ON, OFF, ON, OFF, ON):
This Mode displays Configuration and Auxiliary Codes. The Configuration Code is displayed
prior to Auxiliary Codes. The tables on page 50 show a list of Configuration Codes and a list
of Auxiliary Codes which supported by Blink Codes. Auxiliary Codes are displayed low to high.
Each blink code digit will refer to a digit in the Haldex configuration codes.
Clear Configuration Mode:
The configuration codes may be cleared by switching Permanent power
OFF, ON, OFF, ON while the brakes are applied during the 10 seconds of light
energization that occurs prior to each repeat of the fault code blink sequence.
The light will flash rapidly for 10 seconds to indicate that the configuration has
been erased from the ECU’s memory. The ECU will then store its full configuration
on the next power up.
Page 49 Rev. 5.0
Blink Code Diagnostics
Config Code Blinks
Function
Axle Lifted Sensor Used
Modulators Used
CO
1
2S/1M
S1A
S1B
Red
C1
2
2S/2M
S2A
S2B
Blue, Yellow
C2
3
4S/2M
S3A
S2A
S2B
S3B
Blue, Yellow
C3
4
4S/2M
(S3A) S2A
S2B
(S3B)
Blue, Yellow
2 or 3
Item
Blinks
Description
A0
1
Not Applicable
A1
2
Not Applicable
A2
3
Not Applicable
A3
4
Not Applicable
A4
5
No load sense valve - momentarily displayed when power is applied
A5
6
Not Applicable
A6
7
Not Applicable
A7
8
SLH programming for yellow valve channel (red valve is 2S/1M)
A8
9
MSLH programming for yellow valve channel (red valve is 2S/1M)
Mode 5 - Odometer Mode (6 ONS)
This mode displays the odometers.
Example: 4364.7 miles (4 on/off 1/2 sec flashes, 3 on/off 1/2 sec flashes, 6 on/off 1/2
sec flashes, 4 on/off 1/2 sec flashes, then 2 1/4 sec flashes) if set for miles, 1 1/4 sec
flash if set for kms
Page 50 Rev. 5.0
Info Center - Diagnostic
Fault Code List
INFO CENTER INSTRUCTION
See Info Center Manual L31158
Info Center is a diagnostic tool used for readout of fault codes and odometer as well as other
information within the ABS Electronic Control Unit (ECU).
The Info Center is normally connected to the ECU’s power source. While the ECU is powered
from its normal sources, information is transferred to the Info Center on the permanent power
circuit. A Diagnostic Interface cable is included with the PLC Info Center.
Info Center can be used in conjunction with our premium “PLC Select PLUS” ABS Platform.
Contact Haldex Brake Products for further details.
Page 51 Rev. 5.0
PLC Select 1M - 2M
Tire Scale Factor Chart
Trailer
Tire
0T Smallest Tire
215/75R17.5
8R17.5
275/65R17.5HC
8.5R17.5
245/70R17.5
235/75R17.5
225/70R19.5
8.25R15
9R17.5HC
10R17.5
265/70R19.5
285/70R19.5
100T Smallest Tire
305/70R19.5
11R17.5HC
10.00R15TR
255/70R22.5
275/70R22.5
10R22.5
9.00R20
295/75R22.5
285/75R24.5
295/80R22.5
11R22.5
10.00R20
315/80R22.5
80T Largest Tire
11.00R20
305/75R24.5
11R24.5
10.00R22
12.00R20
425/65R22.5
11.00R22
100T Largest Tire
Scaling Factor
100T (miles)
Scaling Factor
100T (km)
580
574
568
566
566
545
520
519
518
504
503
502*
501
491
360
357
353
352
352
339
323
323
322
313
313
313
312
305
488
488
478
478
472
471
466
391
303
303
297
297
294
293
290
243
*Factory Tire Scale Set At 502 Rev/Mile.
USEFUL NUMBERS:
1 mile = 1.6093 km
SCALE FACTOR (SF) FOR OTHER TIRE SIZE:
Option 1
SF = (1000/Rc) x (T/100)
Option 2:
Rc = Rolling Circumference in meters
T = Exciter actual teeth count
Scaling Factor
80T (miles)
Scaling Factor
80T (km)
579
543
538
527
524
523
523
521
495
495
490
483
470
360
338
334
328
326
325
325
324
308
308
304
300
293
459
454
453
453
436
416
415
414
403
402
402
401
383
391
286
283
282
282
271
259
258
258
251
250
250
249
244
243
1km = 0.6214 miles
SF =
N x (T/1000)
N = Revolutions per mile
T = Exciter actual teeth count
Page 52 Rev. 5.0
Troubleshooting ABS Warning Light
PLC Select 1M - 2M
ABS Warning Light Stays On Permanently:
Upon power up of the ABS system (Permanent or Stoplight Power), the ABS Warning Light
should come ON for about 3 seconds then go OFF. If the Light stays ON, it may be caused by
improper light wiring, or by a fault in the ABS system or the ABS system.
1.
Check for diagnostic fault code. If anything other than an “07” is displayed, review the
“Troubleshooting” section of this manual (page 54 - 58) for possible solutions. After
the problem is repaired, clear all stored faults.
2.
If an “07” is displayed but there was a 11 -16 or 21 - 26 stored in memory, then correct
the problem and drive the trailer above 6 mph to get the ABS Light to turn OFF.
3.
If there are no stored faults and an “07” is displayed, and the ABS Light is still ON,
then the ABS Light is mis-wired. Remove the main wire harness 5 pin connector at the
ECU and verify continuity between pin “D” (Refer to ABS Power Cord - Pin Out page
21) and trailer light. The remaining light wire must be grounded to the trailer chassis or
connected to the SAE J560 7-Way connector ground wire. Check for continuity
between the ABS Light wire and ground. Repair as necessary and retest.
4.
If no “blow down” of the solenoid occurs when power is applied or the diagnostic tool
has nothing on the display, check power on the blue or red wire of the 7-Way connector
as well as the ABS Power Cord.
No ABS Warning Light Illumination:
1.
Check the bulb to verify that it is functional. If not functional, replace it.
2.
Verify that there is power to the ECU. Disconnect the main wire harness 5 pin
connector and check for B+ (positive power) between either stop light or permanent
power and ground (Refer to ABS Power Cord - Pin Out page 21) The voltage drop
between the SAE J560 7-Way and the ECU should not exceed 2 volts. If no power
exists at either stoplight or permanent power in reference to ground then check
continuity from these pins to the SAE J560 7-Way connector red and blue circuits.
Make necessary repairs and retest.
3.
If the problem is still present, remove the main wire harness 5 pin connector at the
ECU and verify continuity between pin “D” (Refer to ABS Power Cord - Pin Out page
21) and the light. The remaining light wire must be grounded to the trailer chassis or
connected to the SAE J560 7-Way connector ground wire. Check for continuity
between the ABS light wire and ground. Repair as necessary and retest.
Page 53 Rev. 5.0
PLC Select 1M - 2M
Diagnostics Codes
Code Explanation:
00
01
02
03
04
05
06
07
11
12
13
14
15
16
20
System OK (with vehicle greater than 6 mph)
Red channel wheel speed sensor wiring S1A
has an Open or Short circuit.
Red channel wheel speed sensor wiring S1B
has an Open or Short circuit.
Possible Causes:
ABS is operational Displays “00” greater
than 6 mph.
Indicates a wheel speed sensor or its wiring
has short or open circuit. Disconnect the
relevant sensor and measure the
resistance between the two pins in the
sensor connector housing.
PLC
Select
1M
PLC
Select
2M
X
X
X
X
Blue channel wheel speed sensor wiring S2A
has an Open or Short circuit.
The Ohmmeter reading for the sensor
should be between 980 and 2350 Ohm
Yellow channel wheel speed sensor wiring S2B (.98K and 2.35 K Ohm)
X
has an Open or Short circuit.
X
Blue channel wheel speed sensor wiring S3A
has an Open or Short circuit.
If sensor extensions are used verify
extension continuity and connections. The
sensors should be replaced if this is not the
case.
X
Yellow channel wheel speed sensor wiring S3B
has an Open or Short circuit.
System OK (No Active Fault)
Red channel speed sensor S1A, has low
sensor output.
Red channel speed sensor S1B, has low
sensor output.
Blue channel speed sensor S2A, has low
sensor output.
Yellow channel speed sensor S2B, has low
sensor output.
Blue channel speed sensor S3A, has low
sensor output.
Yellow channel speed sensor S3B gap too
large. Gap should be kept to a minimum.
Incorrect exciter (tone) ring used.
X
ABS ECU is fully operational. Displays “07”
greater then 6 mph with no faults and
vehicle stationary.
X
Sensor is worn or not properly
adjusted, wiring open or short circuit, wheel
bearing not properly adjusted (these faults
will only occur at speeds greater than
6 mph). Measure the AC voltage at the
sensor in question while rotating the wheel
at a rate of about one revolution every two
seconds. The output should be at least
200 millivolts (0.2 Vac). If this is not the
case, push in the sensor until it touches the
exciter and rotate the wheel again. If this
doesn’t correct the problem, then the
sensor and spring clip should be replaced.
If sensor extensions are used verify
extension continuity and connections. The
sensors should be replaced if this is not the
case.
X
Replace exciter verify all exciters are the
same number of teeth.
X
X
X
X
X
X
X
X
Page 54 Rev. 5.0
PLC Select 1M - 2M
Diagnostics Codes
Code Explanation:
21
22
23
Red channel wheel speed sensor S1A has an
erratic output voltage.
Red channel wheel speed sensor S1B has an
erratic output voltage.
Blue channel wheel speed sensor S2A has an
erratic output voltage.
Possible Causes:
Loose sensor, connection, bracket or
exciter, damaged exciter, sensor is not
properly adjusted or has worn cable
insulation, or worn spring clip, wheel
bearing failure, wheel bearing is not
properly adjusted (these faults will only
occur at speeds greater than 6 mph).
PLC
Select
1M
PLC
Select
2M
X
X
X
Measure the AC voltage at the sensor in
24
25
Yellow channel wheel speed sensor S2B has an question while rotating the wheel at a rate
erratic output voltage.
of about one revolution every two seconds.
Blue channel wheel speed sensor S3A has an
erratic output voltage.
X
The output should be at least
200 millivolts (0.2 Vac).
X
If this is not the case, push in the
sensor until it touches the exciter and
rotate the wheel again. If this doesn’t
correct the problem. then the sensor
should be replaced.
26
30
Verify tire and wheel size is large enough
Yellow channel wheel speed sensor S3B has an for 100 teeth exciter ring. If these faults
re-occur at the same speed, inspect exciter
erratic output voltage.
ring for damage
.
Smaller wheels and tires require 80 teeth
exciter rings. Reference Tire Scale Factor
Chart.
X
Auxiliary channel 0 fault (digital channel 0) I/O
PLC Select 2M (ABS Auxiliary Codes)
31
Auxiliary channel 1 fault (digital channel 1) I/O
32
Auxiliary channel 2 fault (digital channel 2) I/O
33
Auxiliary channel 3 fault (digital channel 3) input Auxiliary Channel has an open circuit or
only
the ECU (Electronic Control Unit) has
34
Note:
These Codes are only used with PLC
Select 2M Plus ABS that supports trailer
Auxiliaries
Auxiliary channel 4 fault (digital channel 1) input auxiliary device connected and should not.
only
35
Auxiliary channel 5 fault (digital channel 2) input
only
37
Light signaled by external device
X
Page 55 Rev. 5.0
X
PLC Select 1M - 2M
Diagnostics Codes
Code Explanation:
40
Sensor wiring crossed across an axle
41
Slow wheel recovery on Red valve channel.
42
Slow wheel recovery on Blue valve channel.
43
Slow wheel recovery on Yellow valve channel.
61
Hold solenoid Open circuit on Red valve
channel.
62
63
67
68
69
Hold solenoid Open circuit on Blue valve
channel.
Hold solenoid Open circuit on Yellow valve
channel.
Dump solenoid Open circuit on Red valve
channel.
Dump solenoid Open circuit on Blue valve
channel.
Possible Causes:
Slow brake release, foundation brake
mechanical faults, dry bearings, broken
return spring, restricted piping. Modulator
fault. Check for kinks and blockage etc.
Incorrect piping, wiring. For a 2M System,
verify the sensors and valve configuration is
correct (See Side-By-Side and
Axle-By-Axle configurations).
Modulator valve solenoid failure, solenoid
connection, or valve cable damage. The most
likely causes include: a bad solenoid or a loose
solenoid connection. Disconnect the indicated
solenoid and check the resistance at the
solenoid pins. Reading across the two bottom
pins to ground should be between 7 and 9 Ohm.
Check the female terminals on the
connector for excessive pin spread or corrosion.
Replace defective hardware as required and
retest.
PLC
Select
1M
PLC
Select
2M
X
X
X
X
X
X
X
X
X
3.5 - 4.5
Ohm
3.5 - 4.5
Ohm
X
Dump solenoid Open circuit on Yellow valve
channel.
X
7.0 - 9.0 Ohm
71
72
Hold solenoid Short circuit to ground on Red
valve channel.
Hold solenoid Short circuit to ground on Blue
valve channel.
73
Hold solenoid Short circuit to ground on Yellow
valve channel.
77
Dump solenoid Short circuit to ground on Red
valve channel
78
Dump solenoid Short circuit to ground on Blue
valve channel
79
Modulator valve solenoid failure, or valve cable
damage. The most likely causes include: a
damaged cable or solenoid. An example of
this is a worn or chafed cable that has exposed
wires contacting the trailer. Disconnect the
indicated solenoid and check the resistance
at the cable end of solenoid. Reading from
each bottom pin to ground should be at least
13K Ohm. Replace defective hardware as
required and retest. Disconnect the indicated
solenoid and check the resistance at the
solenoid pins. Reading across the two bottom
pins should be between 7 and 9 Ohm.
Dump solenoid Short circuit to ground on
Yellow valve channel
3.5 - 4.5
Ohm
3.5 - 4.5
Ohm
X
X
X
X
X
X
7.0 - 9.0 Ohm
Page 56 Rev. 5.0
PLC Select 1M - 2M
Diagnostics Codes
Code Explanation:
80
81
82
83
87
88
89
90
91
92
93
99
9A
Output leakage or poor insulation on any of
the valve channels
Hold solenoid short circuit to B+ on Red
valve channel
Hold solenoid short circuit to B+ on Blue
valve channel
Possible Causes:
Modulator valve solenoid failure or valve cable
damage. Indicates that the solenoid or its cable
has a short circuit to B+ (positive 12 volts). The
most likely cause is a damage cable or solenoid.
Disconnect the indicated solenoid and check the
resistance at the cable end. Reading from each
bottom pin to ground should be at least
13K Ohm. Disconnect the indicated solenoid and
check the resistance at the solenoid pins. Reading across the two bottom pins should be
between 7 and 9 Ohm.
PLC
Select
1M
PLC
Select
2M
X
X
X
X
Hold solenoid short circuit to B+ on Yellow
valve channel
Dump solenoid out shorted on B+ on Red
valve channel.
Dump solenoid out shorted on B+ on Blue
valve channel.
X
3.5 - 4.5
Ohm
3.5 - 4.5
Ohm
X
X
7.0 - 9.0 Ohm
Dump solenoid out shorted on B+ on Yellow
valve channel.
X
Low supply voltage fault. Does Not latch.
Is not stored in memory
Verify +12 VDC power source. Do Not Use
Battery Charger as Power Supply. ECU
minimum operating voltage is 8.5 VDC.
No internal ABS ECU solenoid voltage
available
Verify permanent power is present.
Power input over voltage fault.
Verify +12 VDC power source. Do Not Use
Battery Charger as Power Supply. ECU
maximum operating voltage is 16.0 VDC.
X
X
X
X
X
X
X
X
X
X
X
X
Short circuit on ABS ECU internal relay.
ABS Corrupt Memory
ECU Failure
ABS Corrupt Memory
Page 57 Rev. 5.0
PLC Select 1M - 2M
Diagnostics Codes
Code Explanation:
PLC
Select
1M
Possible Causes:
PLC
Select
2M
Auxiliary Codes: Codes A(x) displayed when power is applied to the ABS ECU. They should not be displayed for more then 2
seconds; if code remain permanently displayed, repair is necessary.
A7
A8
CO
C1
C2
C3
CA
CC
CF
Trailer: SLH on Yellow (Red 2S/1M) channel.
Trailer: Auxiliary option on Yellow (Red 2S/1M)
valve channel.
Trailer: MSLH on Red channel. (Steerable or
single axles only).
Trailer: Auxiliary option on Red valve channel.
2S/1M configuration
S1A, S1B sensors, Red modulator. ECU is
configured as a 2M and is powered up as a 1M.
2S/2M configuration
4S/2M configuration
4S/2M configuration
X
X
X
X
S3A, S2A, S2B, S3B sensors. Blue, Yellow
modulators.
X
S3A, S2A, S2B, S3B sensors. Blue, Yellow
modulators. (S3A and S3B sensed lift axle)
Erase configuration prompt (not a configuration Only required when configured ABS System
code).
from a 4S/2M to a 2S/2M or any 2M configured
to a 1M.
E(x) E0 thru EF are generated when internal
Codes problems exist within the ABS ECU
X
S2A, S2B sensors. Blue, Yellow modulator.
ECU is configured as a 4S/2M and powered up
as a 2S/2M.
Erase memory invitation. (not a configuration
code).
Unacceptable combination of sensors and
solenoid.
X
Unrecognized ABS configuration. Verify all
sensors and valve connections.
X
X
X
X
X
X
X
X
X
ABS ECU is defective. Replace the ABS ECU
Page 58 Rev. 5.0
Notes:
Page 59 Rev. 5.0
Notes:
Page 60 Rev. 5.0
Notes:
Page 61 Rev. 5.0
Notes:
Page 62 Rev. 5.0
Haldex offers proprietary vehicle technology solutions to the global vehicle industry within specific niches. We focus on products to improve
safety, the environment and vehicle dynamics.
We are enhancing our competitive capabilities
and building long-term customer relationships
through high performance, low total costs to the
customer through the product’s service life, ethical business practices and commitment to
long-term partnerships. Haldex operations are
divided into four business areas: Commercial
Vehicle Systems, Hydraulic Systems, Garphyttan
Wire and Traction Systems.
Austria
Haldex Italia SRL
Biassono (Milan)
Tel.: +39 039 471 702
Fax: +39 039 27 54 309
E-Mail: [email protected]
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Poland
Haldex N.V./S.A.
Balegem (Ghent)
Tel.: +32 9 363 90 00
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Tel.: +48 34 350 11 00
Fax: +48 34 350 11 11
E-Mail: [email protected]
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Russia
Haldex do Brasil Ind. e Com, Ltda.
São Paulo
Tel.: +55 11 213 55 000
Fax: +55 11 503 49 515
E-Mail: [email protected]
OOO Haldex RUS
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Tel.: + 7 495 747 59 56
Fax: +7 495 786 39 70
E-Mail: [email protected]
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South Korea
Haldex Ltd
Guelph, Ontario
Tel.: +1 519 826 7723
Fax :+1 519 826 9497
E-Mail: [email protected]
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Tel.: +82 2 2636 7545
Fax: +82 2 2636 7548
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Spain
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Shanghai
Tel.: +86 21 5240 0338
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Tel.: +34 93 573 10 30
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E-Mail: [email protected]
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Sweden
Haldex Europe SAS
Weyersheim (Strasbourg)
Tel.: +33 3 88 68 22 00
Fax: +33 3 88 68 22 09
E-Mail: [email protected]
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Landskrona
Tel.: +46 418 47 60 00
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E-Mail: [email protected]
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United Kingdom
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Tel.: +49 6221 7030
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Tel.: +36 29 631 300
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©2007, This material may contain Haldex
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names, corporate logos, graphics and emblems
which are the property of their respective companies. The contents of this document may not
be copied, distributed, adapted or displayed
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Commercial Vehicle Systems
L30041 US Rev. 9/07 CM
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Tel.: +1 816 891 2470
Fax: +1 816 891 9447
E-Mail: [email protected]
www.haldex.com
www.hbsna.com
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