> 52 MPH

2.0

1.5

1.0

0 - 37 MPH

-----

1.5

1.0

38 - 52 MPH

3.0

2.0

1.0

> 52 MPH

3.0

2.0

1.0

0 - 37 MPH

3.0

1.5

1.0

38 - 52 MPH

3.0

2.0

1.0

> 52 MPH

3.0

2.0

1.0

0 - 37 MPH

-----

-----

0.2

38 - 52 MPH

-----

-----

0.2

> 52 MPH

-----

-----

0.2

0 - 37 MPH

-----

-----

0.5

38 - 52 MPH

1.125

0.875

0.5

> 52 MPH

1.5

1.0

0.5

0 - 37 MPH

-----

-----

0.5

38 - 52 MPH

1.125

0.875

0.5

> 52 MPH

1.5

1.0

0.5

Following
Distance
(Mode 1)

Following
Distance Following Following
(Mode 2) Distance Distance
Default
(Mode 3) (Mode 4)

3.5

2.8

2.3

1.7

3.5

3.5

2.8

2.3

3.5

2.8

2.3

2.3

3.5

3.5

2.8

2.3

3.5

3.5

3.5

3.5

3.5

3.5

3.5

3.5

3.5

2.8

2.3

1.7

2.3

1.7

1.7

1.7

2.3

2.3

1.7

1.7

Table 6 – Configuring Following Distance Alerts (FDAs)

Changing configuration allows the fleet to adjust both the
following distance alerts and the following distance behind
a detected forward vehicle.

33

APPENDIX A - RADAR MOUNTING AND INSTALLATION
Appendix A
Mounting the Bendix™ FLR-21™ Radar Sensor

GENERAL

Improper use of the Bendix ®
Wingman® Fusion™ system can
result in a collision causing
property damage, serious injuries,
or death.

Under no circumstances should the radar be removed or repositioned
from the original production line installation. The assembly should
always be mounted in the original OEM location.

Vehicle equipment, including bumpers, deer guards, etc., must not infringe upon the zone used by the radar
sensor to emit and receive radar waves. Refer to Appendix A.3. Failure to comply with this requirement will
impair the function of the radar. Only vehicle OEM-approved covers and/or cover panels may be installed in
front of the radar.
The radar sensor assembly is mounted to the front of the vehicle using an adjustable bracket. This adjustable
bracket allows for the radar sensor to be properly aimed laterally and vertically to maximize Wingman Fusion system
performance. When mounting a radar sensor, the wire harness connector should always point towards the passenger
side of the vehicle.

A.1 Vehicle Applications
The radar sensor can be mounted and installed only on vehicles that have the Bendix Wingman Fusion system already
installed.

A.2 Replacement Parts
Replacement parts exist for all components shown below. Parts are available from any Bendix authorized parts supplier.
Radar
Source

Adapter
Bracket
(varies)

Adjustable
Stand-off
Assemblies
(3)
Radar Sensor with Stand-off Assemblies

Bracket (Varies) and Stand-off Assemblies

• Kit K071772 includes a specifically

• Provide the bracket part number (see label)
when ordering replacements. Kits include three
(3) stand-off adjuster assemblies and six (6)
mounting screws.

programmed Bendix™ FLR-21™ Radar Sensor,
three (3) stand-off adjuster assemblies, and
six (6) mounting screws.

34

Appendix A

Stand-off Assemblies Only
• Kit K073199 includes three (3)

stand-off adjuster assemblies and
six (6) mounting screws.

Appendix A
Bendix™ FLR-21™ Radar Mounting Clearance
A.3 Bendix™ FLR-21™ Radar Sensor
Mounting Clearance

•

CAUTION: Vehicle equipment, including bumpers,
deer guards, etc., must not infringe upon the zone
used by the radar sensor to emit and receive radar
waves. Failure to comply with this requirement will
impair the function of the radar. Only vehicle OEMapproved covers and/or cover panels may be installed
directly in front of the radar.
For proper operation of the Bendix® Wingman® Fusion™
system, adhere to the following guidelines:
• The radar sensor assembly should be OEM-installed
on the vehicle following all OEM specifications.

The radar’s field of view must NOT have interference
from any other vehicle components such as bumpers,
cow-catcher bumpers, engine blankets, seasonal
decorations, or any other commonly mounted front-ofvehicle components. The radar signal is emitted from
the front of the sensor with a spreading beam. In order
to ensure that no adverse interference is experienced
from bumpers or other nearby vehicle equipment, a
suitable clearance must be maintained around the
radar. This clearance must be maintained regardless
if the vehicle is stationary or in motion. Refer to the
diagram below for a general guide and an example of
how to calculate the zone required.
NOTE: Bendix does not certify nor offer warranty on
Bendix® Wingman® systems where system performance is
affected by beam obstructions of any kind or unapproved
post-production covers. This document gives general
guidelines that will work for most vehicles; exceptions
may exist.

ZONE THAT MUST BE
KEPT CLEAR!

Keep all deer and moose guards,
bumpers, etc. outside of the required
radar beam clearance area.

Measure from the raised
surface at the front of the radar

2xA
Distan

ce A

2xA

R
RADA
FACE
ide x
4 in. w h
ig
3 in. h

2xA

Example Below:
If an obstruction is four (4) inches
(10 mm) in front of the radar, it must
be outside of a zone 20 inches (50
mm) wide by 19 inches (48 mm) high.

2xA
R
RADA
FACE
4 in. x
3 in.

The only exceptions are vehicle OEM‑approved covers

Appendix A

35

APPENDIX B - RADAR ALIGNMENT
Appendix B
Bendix FLR-21™ Radar Sensor Alignment
™

B1.0 Radar Alignment Flowchart
For Bendix™ FLR-10™ radar sensors, refer to SD-61-4962 on B2Bendix.com.

Use this flowchart to find which section(s) of this Appendix to use.
Start
Was
a major problem
discovered (i.e. Radar pointed the
wrong way, broken or chafed wires, blocked radar,
gross misalignment, broken standoffs/brackets,
or physically broken radar)?

YES

Repair the affected
product(s).

NO
Is the
radar and/or
bracket being
replaced?

Use the alignment clip and tool process to
align laterally and vertically (Appendix C).

YES

NO

Is an alignment Diagnostic Trouble Code (DTC)
46 set? (SPN886-FMI7)

YES
Does the vehicle
have a Bendix™ Driver Interface Unit
(DIU™)?

NO

Use the Bendix® ACom®
Diagnostic Software Alignment
Procedure (Step B3).

YES
NO

Is the DIU software
version 12.220 or
newer?

YES
Use the Learned Alignment Procedure to correct the
lateral alignment (Step B2).

Align the radar vertically using a digital
inclinometer (Step B4).
End
In RARE CASES where no alignment value is stored
or it has been erased, use the Dynamic Radar Alignment
Procedure to correct the alignment (Appendix D).

36

Appendix B

Appendix B
Bendix FLR-21™ Radar Alignment
™

B1.1 General Information About Adjusting The Alignment
Accurate vertical and lateral alignment of the radar sensor is critical for proper operation of the Bendix® Wingman®
Fusion™ FLR-21™ Radar Sensor. If the alignment is outside a certain range, it could cause false warnings, missed
warnings, and/or a Diagnostic Trouble Code (DTC) in the system.
The radar sensor is mounted to the front of the vehicle using a bracket with three (3) stand-offs, two (2) of which are
used when making adjustments, if necessary.
It is important to use the correct stand-off when making any alignment adjustments.
Use a Torx® T-20 screwdriver here to
adjust for the vertical alignment

IMPORTANT:
Do not adjust
this stand-off!!

Use a Torx T-20 screwdriver here to
adjust for the lateral alignment

Adjusting the vertical alignment stand-off.

Adjusting the lateral alignment stand-off.

Call the Bendix Tech Team at 1‑800‑AIR‑BRAKE (1‑800‑247-2725) option 2, for troubleshooting assistance.

Appendix B

37

Appendix B
Bendix FLR-21™ Radar Sensor Alignment
™

B2 Lateral Alignment Using The Learned Alignment Screen

This is the preferred and recommended method for lateral alignments
This method is for vehicles with Bendix™ Driver Interface Unit (DIU™) displays that use software whose version is
12.220 and above. To verify the DIU’s software version, go to the Volume screen. The software version is displayed
in the top right-hand corner.
If the radar’s lateral alignment is not correct, the system calculates – over the course of many hours of driving – an
alignment adjustment value. The DIU displays the learned alignment value, shows the technician the direction to turn,
and shows the technician the number of turns to make to the lateral alignment adjustment screw.
B2.1

Tools needed: DIU (with software version 12.220 or above) and a Torx® T-20 screwdriver.

B2.2

Enter the DIU menu item titled “Radar” and select “Alignment Check."

B2.3

Upon selecting the “Alignment Check” menu item, the following screen will be displayed:

Bendix DIU Screen Showing Learned Alignment Value

IMPORTANT:
Do not adjust
®
this stand-off!! Use a Torx T-20 screwdriver here to
adjust for the lateral alignment

The example above shows a correction value of five (5) full turns counterclockwise is needed. The correction
count and arrow direction displayed shows that in order to adjust the radar to be correctly aligned with the travel
of the vehicle, the lateral adjustment screw (lower right screw when facing the front of the vehicle) should be
turned.
B2.4

B2.5

Make the adjustment shown on the Bendix DIU.
IMPORTANT: Make necessary adjustments to the alignment stand-off prior to resetting the
alignment value.
Select “Reset” and then “Exit” on the Bendix DIU screen to return to the default screen.

B2.6

Cycle the ignition power.

B2.7

IMPORTANT: Before returning the vehicle to service, go to Appendix B4 and check the vertical alignment.
NOTE: The alignment process is complete after the vertical alignment has been checked
(and adjusted, if necessary.) Test driving the vehicle is not necessary.

38

Appendix B

Appendix B
Bendix FLR-21™ Radar Sensor Alignment
™

B3 Lateral Alignment Using Bendix® ACom® Diagnostic Software

Use this method to align the Bendix™ FLR-21™ radar laterally – when the vehicle
does not have a Bendix™ Driver Interface Unit (DIU™),
or has a DIU (but its software version is prior to 12.220).
B3.1

Tools needed: Bendix ACom Diagnostic Software and a Torx® T-20 screwdriver.

B3.2

Connect the vehicle to a laptop computer with the current release of the ACom Diagnostic Software.

B3.3

See the “Alignment Value” shown on the Reset Lateral Alignment Value test in available Bi-directional tests
for the Bendix™ FLR-21™ Radar Sensor.
If the alignment value shown by Bendix ACom Diagnostic Software is between -1.1° and 1.1­°, this is acceptable
and the system should operate normally. A value outside that range means the radar sensor should be adjusted.
Alignment
Value Range
(Degrees)
-2.0 to -1.8
-1.7 to -1.6
-1.5 to -1.2

Number of Full Turns of
the Lateral Alignment
Adjustment Screw

Service Action

6 clockwise

Adjustment
Required

5 clockwise
4 clockwise

-1.1 to -0.8

3 clockwise (optional)

-0.7 to -0.5

2 clockwise (optional)

-0.4 to -0.3
-0.2 to 0.2
0.3 to 0.4

No Adjustment
Needed

1 clockwise (optional)
1 counterclockwise (optional)

0.5 to 0.7

2 counterclockwise (optional)

0.8 to 1.1

3 counterclockwise (optional)