BENDIX Wingman Fusion FLR-21 Mounting instructions

1
portal. Currently, the system does not integrate alerts
from Bendix™BlindSpotter®or SmarTire®Tire Pressure
Monitoring System (TPMS) by Bendix CVS.
Bendix™FLR-21™
Radar Sensor
Bendix®ESP®
EC-80™Controller
Bendix™
AutoVue®
FLC-20™
Camera
SafetyDirect®
By Bendix CVS
Processor
Bendix™Driver
Interface Unit
(DIU™)
For more information: • Bendix AutoVue FLC-20 Camera - see SD-64-20124
• Bendix®ESP®EC-80™Controller - see SD-13-4986
• SafetyDirect®By Bendix CVS Processor - see SD-65-21025
Figure 2 – Major Bendix Wingman Fusion System Components
The major components that are used in the Wingman
Fusion system are the Bendix®ESP®EC-80™Controller,
the Bendix™ FLR-21™Radar Sensor, the Bendix™AutoVue®
FLC-20™Camera (powered by the Mobileye®
System-on-Chip EyeQ processor with state-of-the-art
vision algorithms), the Bendix™Driver Interface Unit (DIU™)
or OEM dash display, the SafetyDirect processor, and the
vehicle’s telematics system. See Figure 2.
Bendix®Wingman®Fusion™FLR-21™Radar Sensor
SD-61-4963
IMPORTANT
Bendix®-brand Electronic Control Units (ECUs)
are not designed to store data for purposes of
accident reconstruction, and Bendix®ACom®PRO™
Diagnostic Software is not intended to retrieve data
for purposes of accident reconstruction. Bendix
makes no representations as to the accuracy of
data or video retrieved and interpreted from ECUs
for purposes of accident reconstruction. Bendix
does not o󰀨er accident reconstruction services or
interpretation of stored data. Bendix ECUs are not
protected from re, loss of power, impact damage,
or other conditions that may be sustained in a crash
situation and may cause data to be unavailable or
irretrievable.
Integrating a camera, radar, and brakes, the Bendix®
Wingman®Fusion™Driver Assistance System (Fusion)
provides the following alerts and actions:
• Stationary Vehicle Braking (SVB)
• Enhanced Collision Mitigation Braking (CMB)
• Active Cruise with Braking (ACB)
• Overspeed Alert and Action (OAA)
• Lane Departure Warnings (LDW)
• Stationary Object Alerts (SOA)
• Alert Prioritization
NOTE:
data and video of certain events and, when integrated
with a telematics provider, can transmit this information
for viewing on the SafetyDirect®by Bendix CVS web
Figure 1 – Bendix®Wingman®Fusion™System
Vehicle Equipped with the
Bendix®Wingman®Fusion™
Driver Assistance System
Windshield-mounted
Camera
Front Bumper-mounted
FLR-21 Radar
NOT TO SCALE

2
GENERAL SAFETY GUIDELINES
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 brakes, and always block the wheels.
Always wear personal protection equipment.
▲Stop the engine and remove the ignition key
when working under or around the vehicle.
When working in the engine compartment,
the engine should be shut o󰀨 and the ignition
key should be removed. Where circumstances
require that the engine be in operation, EXTREME
CAUTION should be used to prevent personal
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 the work is being performed on the vehicle’s
air brake system, or any auxiliary pressurized air
systems, make certain to drain the air pressure
from all reservoirs before beginning ANY work
on the vehicle. If the vehicle is equipped with
a Bendix®AD-IS®air dryer system, a Bendix®
DRM™dryer reservoir module, a Bendix® AD-9si®,
AD-HF®, or AD-HFi™air dryer, be sure to drain the
purge reservoir.
▲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 line
containing pressure; it may whip and/or cause
hazardous airborne dust and dirt particles. Wear
eye protection. Slowly open connections with
care, and verify that no pressure is present. 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, fittings, wiring, 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
parts 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.
▲Prior to returning the vehicle to service, make
certain all components and systems are restored
to 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 performing
any vehicle maintenance where one or more
wheels on a drive axle are lifted o󰀨 the ground
and moving.
▲The power MUST be temporarily disconnected
from the radar sensor whenever any tests USING
A DYNAMOMETER are conducted on a vehicle
equipped with a Bendix® Wingman®system.
▲You should consult the vehicle manufacturer's operating and service manuals, and any related literature,
in conjunction with the Guidelines above.
Due to the inherent limitations of image recognition
technology, camera-based safety technology — on
rare occasions — may not be able to detect or may
misinterpret lane markings. At these times, alerts
may not occur, or erroneous alerts may occur.
Bendix safety technologies complement safe driving
practices. No commercial vehicle safety technology
replaces a skilled, alert driver exercising safe driving
techniques and proactive, comprehensive driver
training. Responsibility for the safe operation of the
vehicle remains with the driver at all times.
Improper use of the Bendix®Wingman®Fusion™Driver
Assistance System can result in a collision causing
property damage, serious injuries, or death. Be sure to
read, understand, and carefully follow the instructions
in the Operator’s Manual (BW2681).
IMPORTANT
It is the responsibility of the driver to remain
vigilant and change driving practices depending
on tra󰀩c and road conditions.

3
SD Sheet Index
Bendix®Wingman®Fusion™Driver Assistance System Overview . . . . . . . . . . . . . . . . . .1-5
1.0 Introduction to Troubleshooting Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.1 Troubleshooting Basics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.2 Narrowing Down The Problem . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
1.3 Overview of Possible Issues . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
1.4 Important Note on Telematics Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2.0 Troubleshooting/Diagnostics Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2.1 Bendix®ACom®PRO™Diagnostic Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2.2 Reading Diagnostic Trouble Codes (DTCs) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.3 Reading The System Software Version . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.4 How to Generate a Bendix Wingman Fusion System Diagnostic Trouble Code (DTC) Report . . . 13
2.5 Table of Bendix Wingman Fusion DTCs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
2.6 Clearing DTCs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
2.7 Troubleshooting DTCs: Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
2.8 Serial Data (J1939) Communications Link. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
2.9 Private Communications Network Test Procedure. . . . . . . . . . . . . . . . . . . . . . . . . . 31
2.10 Engine Communications (J1939) Test Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . 32
2.11 J1939 Troubleshooting Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
2.12 Troubleshooting Wiring Harnesses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
3.0 Other System Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
3.1 Reading Bendix Wingman Fusion System Key Indicators . . . . . . . . . . . . . . . . . . . . . . 33
3.2 Bendix Wingman Fusion System DTC Self-Clearing . . . . . . . . . . . . . . . . . . . . . . . . 33
3.3 Following Distance Adjustment Switch (Optional) . . . . . . . . . . . . . . . . . . . . . . . . . . 33
  . . . . . . . . . . . . . . 33
Appendices
Appendix A - Radar Mounting and Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Appendix B - Radar Alignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Appendix C - Radar Alignment Using a Bendix®Alignment Clip and Tool. . . . . . . . . . . . . . . 44
Appendix D - Dynamic Radar Alignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Appendix E - Driver Interface Unit (DIU™): Displays and Alerts . . . . . . . . . . . . . . . . . . . . 49
Appendix F - How to Generate, Read, and Reset the Bendix Wingman System
Diagnostic Trouble Codes (DTC) Using Bendix ACom PRO Diagnostic Software . . 61
Appendix G - How to Read Key System Indicators and Reset Alignment Values . . . . . . . . . . 64
Appendix H - How to Change the Following Distance Alert (FDA) Settings and
Enable Momentary Beeping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Appendix J - Situations That May Cause False Alerts by the Bendix Wingman Fusion System . . . 66
Appendix K - System Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
Appendix L - Maintenance Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
Appendix M - SPN and FMI Codes, Descriptions and Service Actions . . . . . . . . . . . . . . . . 82

4
NOTE: If during the intervention it is necessary to apply
the foundation brakes, or the vehicle speed falls below
the minimum cruise speed allowed, the vehicle will
not automatically resume the cruise control set speed.
EXCEPTION: It is possible that some Fusion applications
allow the cruise control to automatically resume after
the Fusion system applies the foundation brakes during
adaptive cruise. The driver is able to override the auto
resume feature by manually activating the brake pedal.
If the vehicle ahead slows below the cruise control’s set
speed, but then accelerates away – and the Fusion system
did not need to use the foundation brakes – the system will
automatically accelerate back to the original cruise control
set speed and maintain a set following distance behind any
detected forward vehicles.
Because the Bendix®Wingman®Fusion™system operates
along with normal cruise control, all the typical features
built into cruise control work as usual. For example, limits
imposed by factory-set road speed governors, etc. are fully
supported by the Fusion system.
ACTIVE CRUISE CONTROL WITH BRAKING
The active cruise control with braking feature is an
additional upgrade of ordinary cruise control. When using
cruise control, the Bendix®Wingman®Fusion™Driver
Assistance System (Fusion) will maintain the set speed,
and will also intervene – as needed – to help maintain a
set following distance behind a detected forward vehicle.
Using the Bendix®FLR-21™Radar Sensor mounted to the
front of the vehicle – with a range of approximately 500 ft
(152 m) – the Fusion system reacts to detected forward
vehicles in the same lane, traveling in the same direction.
See Figure 3.
The active cruise control with braking feature is designed to
help maintain a set following distance between the vehicle
and a detected forward vehicle when cruise control is set.
See the striped "Radar Beam" area in Figure 3.
Once cruise control is set and the system is maintaining a
set following distance between the vehicle and the forward
detected vehicle, if the forward detected vehicle slows down
below the cruise control’s set speed, the Fusion system
will intervene and, as necessary, in this order:
(a) reduce the engine throttle; then
(b) apply the engine retarder; then
(c) apply the foundation brakes
in an attempt to maintain the set following distance behind
the vehicle ahead.
Figure 3 – Bendix®Wingman®Fusion™Driver Assistance System Intervention Zone
Detected Forward
Vehicle
Vehicle Equipped with the Bendix®
Wingman®Fusion™System
Radar Beam
The DARK GRAY area approximates the
zone where the Wingman Fusion system
is ready to alert – and intervene with the
vehicle's brakes – as long as the vehicle
is traveling above 15 mph / 24 kph.
The STRIPED area approximates the
zone where the Active Cruise with
Braking feature is ready to alert – and
intervene with the vehicle's brakes –
when the cruise control is set.
NOT TO SCALE
FEATURES OF THE BENDIX®WINGMAN®FUSION™SYSTEM
Windshield-mounted
Camera
Front Bumper-
mounted Radar

5
ALERTS
The Bendix®Wingman®Fusion™System also assists by
giving audible and visual alerts, whether or not cruise
control is on. See Appendix E and Appendix K for more
information on the types of alerts the driver may hear and/
or see.
COLLISION MITIGATION TECHNOLOGY
See the striped area in Figure 3. The Fusion system’s
collision mitigation technology is designed to be ready to
alert the driver to detectable objects in front of the vehicle
(whether or not cruise control is set) and react to the
presence of stationary/moving vehicles in the lane ahead.
Collision mitigation interventions provide the driver with
an alert before an intervention occurs. The driver must
immediately act to potentially avoid, or lessen the severity
of, a collision.
OVERSPEED ALERT AND ACTION (OAA)
The Fusion system has the ability to assist the driver by
recognizing U.S. and Canadian speed limit signs. This
allows the system to display the current posted speed
limit and alert the driver when overspeed thresholds are
detected. When changing between regions which post
speeds in miles and those which post in kilometers, the
speed limit sign recognition feature will not function until
the correct U.S./metric selection has been made.
LANE DEPARTURE WARNING
The Fusion system will monitor the visible lane markings
on the road and when an unexpected lane change – a
lane change without an activated turn signal – takes place,
the system will alert the driver to make a correction. Tired,
distracted, or inattentive drivers are alerted and can take
remedial actions.
SAFETY DATA RECORDING AND TRANSMISSION
Many Fusion-equipped vehicles use the SafetyDirect®
by Bendix CVS processor and the vehicle’s telematics
processor to record vehicle and driver safety data after
safety system events. Data collected includes signals on
the vehicle communication network, images, video from
the Bendix™AutoVue®FLC-20™camera, and internally
generated data. Telematics devices transmit this data and
video to the SafetyDirect web portal.

6
Troubleshooting Basics (1.1)
Questions/Instructions Next Steps
1. Have the driver run the
Power-Up Self-Test.
Power-Up Self-Test
This is a self-diagnostic check to determine if the system operation is normal.
1.
2.
3.
4.
5.
󰀨
Put the key into the ignition and turn to the “ignition power” position.
Toggle the cruise control switch at least once, and leave it in the “on” position.
Start the vehicle, but do not drive away.
Note that if the cruise control is in the “o󰀨” position, or if the vehicle is
moving, this test will not run.

to complete.
        󰀨   
during the initial 15 seconds after ignition “on.”)
As the Bendix Wingman Fusion system self-test runs, the driver should hear a
short set of beeps. The test checks the engine, transmission, and brake systems
to make sure they are communicating. In addition, depending on the vehicle,

Vehicle Detected icon in the instrument cluster to illuminate; this is normal.
2. Does the driver hear a
long warning beep?
If no problem is found and the test is passed, no additional beeps/lamps will be
displayed nor will a trouble code be set.
If the system has found an issue that will prevent it from functioning properly, a long
warning beep will sound to alert the driver, and a Diagnostic Trouble Code (DTC)
will be logged in the system (typically with a status indicator/dash icon illuminated).
For descriptions of all DTCs, see Section 2.5: Diagnostic Trouble Codes.
3. Have the driver describe
the system behavior that
they believe shows it is not
working properly.
When diagnosing the system, especially in cases where there are no DTCs logged,

4. Fill out the Troubleshooting
Checklist (pages 7–8)
and create a DTC report
(Appendix F).
The Checklist and DTC Report will clarify the problem and be necessary if a call to
the Bendix Tech Team is needed.
Also See Section 1.2: Narrowing Down the Problem.
Call the Bendix Tech Team at 1-800-AIR-BRAKE (1-800-247-2725), option 2, for troubleshooting assistance.
Table 1 – Troubleshooting Basics
1.0 INTRODUCTION TO
TROUBLESHOOTING SECTION
This section introduces three (3) initial steps to accurately
troubleshoot the Bendix®Wingman®Fusion™system.
We recommend reading this introductory section – as well
as the Troubleshooting/Diagnostics Section (2.0) – before
performing any troubleshooting.
When diagnosing the Fusion system, a current version
of Bendix®ACom®PRO™diagnostic software is required.
This software is available as a download from bendix.com.
1.1 TROUBLESHOOTING BASICS

7
Troubleshooting Checklist (Pages 7–8)
WARNING: The Troubleshooting Checklist should not be completed while the vehicle is in motion
and the while the driver is completing the scenarios and tests.
Detailed Scenarios and Tests Record Driver’s Answers for
Follow-up with Bendix
Does the vehicle maintain its set speed when the cruise control
is switched on and set? Yes No _____________
Is the cruise control “set” icon displayed? Yes No _____________
While following a forward vehicle within radar range and the cruise control is
switched on and set, record your response to the following:
Is the “forward vehicle detected” icon displayed?
What color is the icon?
When the forward vehicle slows down, does the truck also slow down to
maintain the set distance?
Yes No __________
Icon Color______________
Yes No _____________
󰀨
become faster as the truck moves closer to the forward vehicle? Yes No _____________
With cruise control switched on and set, when the forward vehicle slows
moderately or cuts in front of the truck and slows, did the driver observe any of
the following conditions?
Does the vehicle slow and the Bendix®Wingman®Fusion™system
maintain the following distance?
Is the engine throttle reduced?
Is the engine retarder applied?
Are foundation brakes applied?
Are there Diagnostic Trouble Codes (DTCs) logged?
Does the truck proceed toward the forward vehicle without a following
distance alert or braking intervention?
Yes No _____________
Yes No _____________
Yes No _____________
Yes No _____________
Yes No _____________
Yes No _____________
With cruise control engaged, and while following a vehicle ahead in gentle
curves (assuming a 3 to 3.5 second following distance):
Does the Bendix Wingman Fusion system continue to follow the vehicle
through the curves at a constant distance?
Does the truck proceed toward the forward vehicle without a following
distance alert or braking intervention?
Yes No _____________
Yes No _____________
With cruise engaged, when your vehicle passes a slower vehicle on the left or
right on a straight or slightly curvy road:
Does the Bendix Wingman Fusion system ignore
the vehicle you are overtaking?
Does it give a following distance alert?
Yes No _____________
Yes No _____________

8
Troubleshooting Checklist (Pages 7–8)
WARNING: The Troubleshooting Checklist should not be completed while the vehicle is in motion
and the while the driver is completing the scenarios and tests.
Detailed Scenarios and Tests Record Driver’s Answers for
Follow-up with Bendix
With cruise engaged, if a faster vehicle passes your vehicle on the left or right
on a straight or slightly curvy road:
Does your vehicle throttle up and try to keep pace
with the faster moving vehicle?
Does it give a following distance alert?
Yes No _____________
Yes No _____________
With cruise control engaged, if the vehicle ahead slows moderately or cuts in
front of your truck and slows down:
Does your vehicle slow and Bendix®Wingman®Fusion™
maintain the following distance?
Is the engine throttle reduced?
Is the engine retarder applied?
Are the foundation brakes applied?
Are there Diagnostic Trouble Codes (DTCs) logged?
Does your truck proceed toward the forward vehicle without
a following distance alert or braking intervention?
Yes No _____________
Yes No _____________
Yes No _____________
Yes No _____________
Yes No _____________
Yes No _____________
What version of Bendix®ABS and Bendix Wingman Fusion system is installed on
the vehicle? See Section 2.3: Reading the System Software Version. ___________________________
What are the key system indicators?
See Section 3.1: Reading Bendix Wingman Fusion System Key Indicators.
___________________________
___________________________
___________________________
___________________________
___________________________

9
1.2 NARROWING DOWN THE PROBLEM
Use the questions found in Table 2 below to help assess if the Bendix®Wingman®Fusion™system is not performing
correctly. Be sure to have a thorough understanding of the system’s normal behavior; this will reduce the troubleshooting
time. The table provides a guide to basic troubleshooting questions and possible corrective actions. Items in Italics cross-
reference to the service procedures in this manual to repair the condition described.
If Bendix Tech Team assistance is needed, prior to calling us at 1-800-AIR-BRAKE (1-800-247-2725), option 2, complete
the Troubleshooting Checklist to help reduce the time needed to troubleshoot the system.
Narrowing Down the Problem (1.2)
Questions Next Steps
Blocked Radar Sensor Issues
Is mud, ice, or snow covering the
radar sensor?
Is anything blocking the view of the
radar sensor?
Clean the radar sensor front surface immediately. Remove anything blocking the radar
sensor then power cycle and read any remaining trouble codes.
Read Section 2.5: Diagnostic Trouble Codes.
Read Appendix A3: Bendix™FLR-21™Radar Sensor Mounting Clearance.
If the radar sensor is blocked by ice, snow, mud, tampering, etc. so that it cannot "see" a
forward vehicle, the Bendix Wingman Fusion system will notify the driver by an audible
and/or visual alert. After the blockage is removed, the audible and/or visual alert will be
removed. Drivers should visually check the radar sensor for blockage during the pre-trip
inspection.
Potential False Warnings
Do false warnings seem to happen
in construction zones or going under
bridges?
Several road scenarios have a tendency to cause false warnings, including construction
zones and bridges. Unless these false warnings are frequent, the system is likely reacting
normally. The driver should not set the cruise control in construction zones. If driver

presenting the problems. Review proper operating conditions in the operator's manual.
Mounting Problems
Is the radar sensor mounting
location (bumper or cross-member)
damaged?
Does the system seem to not "see"
as far as it “used to”, or warn on
many more overhead bridges/signs
than previously?
Re-align the radar sensor vertically and laterally. Use the following procedures:
• Inspect the radar mounting. A solid mounting surface is necessary in order to hold the

align the radar sensor.
• Appendix B1 - Go to Appendix B1
needed. Follow the actions directed in the procedure(s) and align the radar.
• Appendix B4 - Check the vertical alignment and adjust if needed.
Does the mounting bracket look
damaged or tampered with?
Other than expected surface scratches or some discoloration over time, there should be no
visible damage to the radar sensor bracket assembly or the bumper. If no visible damage is
found, realign the radar sensor vertically and laterally.
• Check the Vertical Alignment (Appendix B4) and adjust if needed.
• Check the Lateral Alignment (Appendix B2 and B3) and adjust if needed.
The radar sensor needs a solid mounting surface in order to hold the alignment. If the
radar sensor alignment cannot be held in place, the bracket assembly must be replaced,
and/or if the bumper or mounting cross-member is damaged, replace it as needed. Where
replacing either or both of these, align the radar sensor using the procedure shown in
Appendix C.
Call the Bendix Tech Team at 1-800-AIR-BRAKE (1-800-247-2725), option 2, for troubleshooting assistance.
Table 2 – Narrowing Down the Problem (Pages 9–10)

10
Narrowing Down the Problem (1.2)
Questions Next Steps
Has the system worked without
problems in the past but is not
working as expected now?
This is a good indication that something has changed – such as misalignment of the radar
sensor. Review the following questions with the driver to further diagnose the problem.
Has the radar sensor been
changed recently?
If so, the new radar sensor may be incompatible with the vehicle. In addition, check any
system Diagnostic Trouble Codes (DTCs) with Bendix®ACom®PRO™Diagnostic Software.
Read Section 2.5: Diagnostic Trouble Codes.
Did the radar sensor currently on
the vehicle come from another
vehicle?
The radar sensor may be incompatible with the new vehicle. Follow Section K1.15: Radar
Sensor Interchangeability procedure and check system DTCs with Bendix ACom PRO
diagnostic software. Read Section 2.5: Diagnostic Trouble Codes.
With cruise control set, does the
system consistently apply the
foundation brakes when a forward
vehicle slows?
This is normal operation. Continue asking the driver questions to determine if the radar
system interventions are not the expected Bendix®Wingman®Fusion™system behavior. If
the radar system interventions are not typical, the radar sensor may be misaligned.
• Inspect the radar mounting. A solid mounting surface is necessary in order to hold the

align the radar sensor.
• Appendix B1 - Go to Appendix B1 
needed. Follow the actions directed in the procedure and align the radar.
• Appendix B4 - Check the vertical alignment and adjust if needed.
The service technician will need to check trouble codes as well. Read Section 2.5:
Diagnostic Trouble Codes.
Does a DTC seem to occur when
driving through the desert or in
barren areas (no road signs, trees,
or vehicles)?
In normal operation, the active cruise control with braking feature of the Bendix Wingman
Fusion system may indicate a DTC if it hasn’t detected a metallic object after a pre-
determined period. This is rare, but most likely to occur when driving in deserts or barren
areas. If the system does set a DTC, the Bendix Wingman Fusion system provides a
visible warning to the driver. In addition, the vehicle will also drop out of cruise mode,
󰀨
road and cycle the ignition before the vehicle’s cruise control can be used.
Does the system seem to
disengage after an automatic
braking event?
This is normal operation. The driver must set or "resume" the cruise control once again to
regain the following distance function.
Does cruise control disengage
sometimes when the brakes come
on and not at other times?
This is normal operation. When traveling with lightly loaded trailers, or “bobtail”, the active
cruise control with braking feature of the Bendix Wingman Fusion system may continue to
function even after an automatic brake application. No driver input is needed.
Does the connector or wiring
appear damaged?
Wires can become corroded if the radar sensor is not plugged in properly. Clean the
connectors on the wire harness, as well as the radar sensor, and reattach. If wires are
chafed, replace the wire harness. Also, check for trouble codes.
Read Section 2.5: Diagnostic Trouble Codes, and
Section 2.12: Troubleshooting Wiring Harnesses.
Does the system generate a DTC
going down a grade when using
ACB (Active Cruise-control with
Braking) to slow the vehicle, but the
code goes away later?
This is normal operation. The active cruise control with braking feature of the Bendix
Wingman Fusion system is not intended to be used on grades. Verify there are no DTCs.
Proper downgrade driving techniques should be used.
Read Section 2.5: Diagnostic Trouble Codes.
Does the radar sensor have
noticeable damage beyond normal
discoloration or surface scratches?
The radar sensor and bracket are very durable. However, if the radar sensor housing or
cover is cracked or broken, immediately look for trouble codes via Bendix ACom PRO
diagnostic software and replace the damaged radar sensor. Read Section 2.5: Diagnostic
Trouble Codes, and Appendix A3: Radar Sensor Mounting Clearance.
Call the Bendix Tech Team at 1-800-AIR-BRAKE (1-800-247-2725), option 2, for troubleshooting assistance.
Table 2 – Narrowing Down the Problem (Pages 9–10)