1.2 to 1.5
1.6 to 1.7
1.8 to 2.0

Adjustment
Required

4 counterclockwise
5 counterclockwise
6 counterclockwise

ADJUSTMENT SCREW ROTATION REQUIRED

NOTE: The maximum Alignment Value shown by the ACom Diagnostic Software is + 2°.

Appendix B

39

Appendix B
Bendix FLR-21™ Radar Sensor Alignment
™

B3 Lateral Alignment Using Bendix® ACom® Diagnostic Software (Continued)
B3.4

See the image below to see the lateral alignment adjustment screw location.
Use the table in B3.3 on the prior page to find the number of full turns of the stand-off adjustment screw required
to bring the radar sensor back into alignment. A Torx® T-20 screwdriver with a mark or other indicator may help
track the number of turns.

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

B3.5

After making the adjustment, clear the Bendix® Wingman® Fusion™ system Diagnostic Trouble Code (DTC)
using the procedure in Section 2.6: Clearing Diagnostic Trouble Codes (DTCs).

B3.6

Follow steps B3.7–11 to reset the alignment value stored in the system.

B3.7

Procedure to Reset the Alignment Value. From the available Bi-directional Tests for the Bendix™ FLR-21™
Radar Sensor in ACom Diagnostic Software, select the Reset Lateral Alignment Value test.

B3.8

Review the test instructions and select Reset in the Reset Lateral Alignment Value test. (Refer to Appendix
H for more details.)

B3.9

Close the ACom Diagnostic Software program and any open windows.

B3.10 Cycle the vehicle ignition.
B3.11 After the vehicle has been driven at least 20 miles at above 35 mph (56 kph) in multi-lane urban traffic,
re-check the alignment value using the ACom Diagnostic Software.

40

Appendix B

Appendix B
Bendix FLR-21™ Radar Sensor Alignment
™

B4 Vertical Alignment Using An Inclinometer
B4.1
B4.2
B4.3

Tools Needed: A digital inclinometer, Torx® T-20 screwdriver. (If a clip from the Bendix Alignment
Tool kit is available, the clip may be placed over the front of the radar sensor during this process.)
Park the vehicle on a level floor. Air suspensions must be charged and stable.
Calibrate (or “zero”) the inclinometer to the level surface the vehicle is parked on. Follow the manufacturer’s
instructions (typically digital inclinometers have a “SET” button for this purpose).

Calibrate (or “zero”) the
Digital Inclinometer

B4.4

Place the calibrated digital inclinometer against the front surface of the radar so that the tool is held in the
same direction as it was when calibrating. With the digital inclinometer resting as shown below, verify
that the display shows 0° (± 1.0°) from vertical, when measured by and inclinometer calibrated to the level
surface the vehicle is parked on. If the display does not show 0° (± 1.0°) from vertical, proceed to step
B4.5 to complete a vertical adjustment.
Use a Torx T-20 screwdriver here to
adjust for the vertical alignment

IMPORTANT:
Do not adjust
this stand-off!!

Appendix B

41

Appendix B
Bendix FLR-21™ Radar Sensor Alignment
™

NOTE: Complete the steps below only if a vertical adjustment is necessary.
B4.5

Use the Torx® T-20 screwdriver to turn (by hand) the top‑left adjustment stand-off. During the adjustment, observe
the digital display on the inclinometer and turn the vertical alignment screw clockwise or counterclockwise
depending on the vertical direction (up or down) needed, until the reading is 0°.

B4.6

The radar is aligned vertically when the display is between -1.0° and 1.0°; however, to achieve a more
precise alignment, adjust the vertical alignment screw until the digital alignment value is near 0°.
NOTE: The alignment process shown here is for Bendix® alignment brackets. For other brackets, similar
alignment steps will be needed; consult the vehicle manual for full instructions.
Pitch
Alignment
Value Range
(Degrees)

8 clockwise

4.6

7 clockwise

4

6 clockwise
Adjustment Required

5 clockwise

2.7

4 clockwise

2

3 clockwise

1.4

2 clockwise

0.6

1 clockwise (optional)

0
-0.6

No Adjustment
Needed

0
1 counterclockwise
(optional)

-1.4

2 counterclockwise

-2

3 counterclockwise

-2.6

4 counterclockwise

-3.2

42

Number of Full Turns of
the Vertical Alignment
Adjustment Screw

5.3

3.3

B4.7

Service Action

Adjustment Required

5 counterclockwise

-4

6 counterclockwise

-4.6

7 counterclockwise

-5.3

8 counterclockwise

If used, be sure to remove the clip before returning the vehicle to service.

Appendix B

APPENDIX C - RADAR ALIGNMENT USING A BENDIX® ALIGNMENT CLIP AND TOOL
Appendix C
Bendix™ FLR-21™ Radar Sensor Alignment
C1 Lateral Alignment Using the Bendix® Alignment Clip and Tool
This is the method to use for lateral alignment when a radar and/or bracket is replaced.
Tools needed: Bendix® alignment kit, steel clip, Torx® T-20 screwdriver, and a tape measure.
•

One of the Bendix® Alignment Tools (Bendix part numbers K065284 and K096579 — available from Bendix parts
outlets) are used.

The alignment procedure also requires a steel clip (Bendix part number K073087).

Steel Clip
(actual design may vary)
K065284
Alignment Tool
with Laser Guide

Install Steel Clip over
Bendix™ FLR-21™ Radar

Magnetic Feet
(3)

K096579
Shorter
Bar

ALIGNMENT TOOLS AVAILABLE

C1.1

Park the vehicle on a level floor. Air suspensions must be charged and stable. Install the steel clip supplied
over the radar sensor.

C1.2

Attach the alignment tool onto the clip using its magnetic feet. Inspect to make sure that the alignment tool is
approximately horizontal width-wise.

C1.3

Activate the lateral alignment laser light “on” switch. Place the tool into position for the first measurement. (The
tool will be reversed when the second measurement is made.)

Appendix C

43

Appendix C
Bendix FLR-21™ Radar Sensor Alignment
™

C1 Lateral Alignment Using the Bendix® Alignment Clip and Tool (continued)
C1.4

Locate symmetrical points on the front of the vehicle that are at least 12 in. (30  mm) from the vehicle’s center
line (such as the tow hooks). Using a ruler or tape measure, record the distance from each side to the laser
light line.

LATERAL ALIGNMENT LEFT MEASUREMENT

NOTE: The technician must be careful during the laser positioning process to double check the values measured on each
side of the truck. Be sure to check back and forth for each side of the radar sensor several times to ensure accuracy.
C1.5 Repeat the process for the opposite side, reversing the tool, so that the laser light points to the other
side of the vehicle.
The Whole
Tool is
Reversed for
the Second
Measurement

Lateral Alignment
Laser

Laser
Light Beam

C1.6

44

Compare the left and right distance measurements. A properly aligned radar sensor will have the same
measurement from each side. If these two dimensions are within 1/8 in. (3 mm), no alignment is necessary
and the technician can proceed to Step C1.10 to check the vertical alignment. If an adjustment is needed,
follow the instructions in C1.7–C1.9 on page 46.

Appendix C

Appendix C
Bendix FLR-21™ Radar Sensor Alignment
™

C1 Lateral Alignment Using the Bendix® Alignment Clip and Tool (continued)
NOTE: Complete these steps only if a lateral adjustment is necessary.
C1.7

With the Bendix® alignment tool still in place, use the Torx® T-20 screwdriver to turn by hand the driver‑side
stand-off adjustment screw until the desired alignment is reached.

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

C1.8

Re-measure the distances from symmetrical points located at least 12 in. (30.48 cm) (from the center line of
the vehicle. Reverse the tool for each measurement, until the values are the same [within 1/8 in. (3 mm)].

C1.9

After the lateral alignment procedure is complete, if there is an active misalignment Diagnostic Trouble
Code (DTC) (codes 55, 56, or 57), clear the Bendix® Wingman® Fusion™ system DTC using the procedure
in Section 2.6: Clearing Diagnostic Trouble Codes (DTCs) and reset the alignment value by connecting the
vehicle to a PC with Bendix® ACom® Diagnostic Software and follow steps B4.4–20 to reset the alignment value.
(Refer to Appendix H.)

C1.10 IMPORTANT: Before returning the vehicle to service, check the vertical alignment using the procedure
outlined below.
C1.11 The steel clip and alignment tool should already be in place. Refer to steps C1.1–2.

Appendix C

45

Appendix C
Bendix FLR-21™ Radar Sensor Alignment
™

C1.12 Calibrate (or "zero") the inclinometer to the level surface the vehicle is parked on. Follow the manufacturer’s
instructions (typically digital inclinometers have a “SET” button for this purpose). Calibrate (or “zero”) the digital
inclinometer on the level surface the vehicle is parked on in the direction the vehicle travels.
Place the calibrated digital inclinometer onto the surface of the tool, so that the tool is in the same direction as
it was during calibration. Verify that the display shows 0° (± 1.0°) from vertical. If the display does not show
0° (± 1.0°) from vertical, go on to step C1.13 to complete a vertical adjustment.

NOTE: Complete these steps only if a vertical adjustment is necessary.
C1.13 With the Bendix alignment tool still in place, use the screwdriver to
turn by hand the top‑left adjustment stand-off. Refer to the diagram
on the right. During the adjustment, observe the digital display on
the inclinometer and turn the vertical alignment screw clockwise or
counterclockwise depending on the vertical direction (up or down)
needed, until the reading is near is 0°.
C1.14 The radar is aligned vertically when the display is near zero (0°).
NOTE: The alignment process shown here is for Bendix® alignment
brackets. For other brackets, similar alignment steps will be needed;
consult the vehicle manual for full instructions.

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

IMPORTANT:
Do not adjust
this stand-off!!

NOTE: The alignment process is complete after the vertical alignment has been checked
(and adjusted, if necessary.)

46

Appendix C

APPENDIX D - DYNAMIC RADAR ALIGNMENT
Appendix D
Bendix FLR-21 Radar Sensor Dynamic Alignment Method
™

™

This procedure may be used in rare cases where the stored alignment
value is not available. The vehicle must have a Bendix™ Driver Interface
Unit (DIU™) with a software version 12.220 or above.
D1 Lateral Alignment Using the Dynamic Alignment Method
Use the flowchart B1.0 – page 36 of this document – to ensure the correct alignment procedure is used. This
procedure is used in the rare cases where a learned alignment value is not available. For example, in cases
where a technician erroneously resets the alignment value before recording the Learned Alignment correction
value and direction.
D1.1

D1.2

D1.3

Tools needed: DIU (with software version 12.220 or above), and a Torx® T-20 screwdriver. The assistance of
another vehicle will be necessary, plus an assistant in the cab of the vehicle with the driver.
The DIU’s software version can be seen in the top right-hand corner of the Volume screen. The Bendix DIU’s
Dynamic Alignment Screen is used to show a dynamic calculation of the alignment of the radar.
To perform the inspection, the vehicle must be traveling behind a cooperative vehicle on a straight, level length
of highway where the speed limit is >35 mph. Obeying all traffic laws, follow the vehicle in the same lane at a
speed greater than 35 mph / 56 kph. For the most accurate results, the distance between the vehicles must be
between 50 and 300 feet (15 to 91 meters), so the observed distance figure – displayed in the top left-hand
corner of the display – helps the driver maintain the correct range. Verify that both vehicles remain in the
middle of the lane during the test. The radar determines the distance and alignment to the vehicle ahead, and,
if needed, calculates an alignment correction value, displayed on the screen.
During the test, an assistant in the vehicle should observe where on the scale the triangle indicator shows the
alignment correction value. Because this is a dynamic measurement, the arrow will typically move through a
range of positions. Note the average position where the triangle points over a length of time. This value gives
the number of turns of the lateral adjust screw clockwise (CW) or counterclockwise (CCW), in order to correct
any misalignment present. See Figure below. The number of turns may require less than a full screw turn, e.g.
halfway between 2 and 3 is 2.5 turns. The scale to the left of center shows when a clockwise (CW) adjustment
is needed, and numbers to the right are for counterclockwise (CCW) adjustments.
The indicator triangle will move
along the scale to show the
number and direction of turns to
make of the adjustment screw.

CW = Clockwise

CCW = Counterclockwise

Dynamic Alignment Screen

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

D1.4

Alignment values less than 1.1 from the center are acceptable and do not necessarily require adjustment. (See
the “OK” zone shown on the scale for this range.)

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

47

APPENDIX E - DRIVER INTERFACE UNIT (DIU™): DISPLAYS AND ALERTS
Appendix E
Bendix™ Driver Interface Unit (DIU™): Displays & Alerts
E1 Operator Interface
The Bendix® Wingman® Fusion™ system is either integrated into the vehicle's dash or console, or uses the
Bendix™ Driver Interface Unit (DIU™) to communicate with the driver. (For integrated systems, refer to the
vehicle operator’s manual for more information.)
This Section describes the functions of the DIU. The DIU mounts in, or on, the vehicle dash and provides the
interface between the driver and the Fusion system. The DIU provides visual and audio warnings to the driver
and accepts input from the driver through the “Up”, “Down” and “OK” buttons.
The DIU contains an internal speaker to provide audible warnings, two (2) LED arrays (one each in yellow
and red), a single orange and blue LED and an LCD screen for visual warnings, and a light radar sensor to
distinguish between day and night conditions.

E1.1 Start-Up Mode
At initialization, the DIU executes self-test routines during which the following screens are displayed and all
LEDs are activated (power-on bulb check) for approximately three (3) seconds. If configured, a power-up tone
is also sounded.
Three Red LEDs
Illuminated

All Yellow LEDs
Illuminated
Single Blue
LED Illuminated
Single Orange
LED Illuminated

(No LEDs
Illuminated)

Buttons

Wingman®

(No LEDs
Illuminated)

A Collision Mitigation
Technology by
Bendix

(No LEDs
Illuminated)

NOTE:
Wingman®

Uses Foundation Brakes

NOTE:

Read Operator's Manual
before using

Call the Bendix Tech Team at 1‑800‑AIR‑BRAKE (1‑800‑247-2725), option 2, for troubleshooting assistance.
48

Appendix E

Appendix E
Bendix™ Driver Interface Unit (DIU™): Displays & Alerts (continued)
When the initialization sequence is complete, the following screen is displayed for approximately three (3)
seconds to indicate the features available to the driver.

(No LEDs
Illuminated)

Bendix

Wingman Fusion

Next, the DIU will enter normal operation. Under normal operation, the screen is:

(No LEDs
Illuminated)

If the Bendix® Wingman® Fusion™ system goes into the self-test mode, the DIU may briefly display the “Bendix
Self-Test” screen. Also, the audible distance alerts will activate, followed by a screen indicating that the selftest has run. Below left is the screen that will be briefly displayed if the self-test runs and passes. Below right
is the screen that will be briefly displayed if the self-test runs and fails. If the self-test fails, a Diagnostic Trouble
Code (DTC) will be set. The driver should turn off the vehicle, wait 15 seconds and then turn it back on again.
If the problem persists, a qualified technician will be necessary for troubleshooting. Refer to the “Power-Up
Self-Test” in this Service Data Sheet Section 1.1: Troubleshooting Basics for further information.

Bendix

Single Yellow LED
Illuminated

(Followed
by a Single
Orange
LED
Illuminated)

Self Test

Bendix

Self Test Failed

E1.2 Menu Operation
Pressing the “OK” button at any time will enter the “Menu Operation Mode”. The following selections will
appear in a scrollable window. Some items may not appear if the feature is not configured or not allowed as
shown below.
• Volume
• Dist. Setting (Distance Setting)
• Dist. Units (Distance Units)
• U.S./Metric
• Brightness
• System Status
• Diag. Display (Diagnostic Display)
• Demo (Demonstration. NOTE: Demo is available only when vehicle is not moving)
The desired menu item is highlighted using the up ( ) or down ( ) arrow buttons and selected with
the “OK” button. The following sections describe each menu item.

Settings should only be changed when the vehicle is stationary.
Call the Bendix Tech Team at 1‑800‑AIR‑BRAKE (1‑800‑247-2725), option 2, for troubleshooting assistance.
Appendix E

49

Appendix E
Bendix™ Driver Interface Unit (DIU™): Displays & Alerts (continued)
E1.3 Volume
Selecting “Volume” from the main menu displays the following screen:

(No LEDs
Illuminated)

Use the up (
item.

)/down (

Volume

123.4

Software
Version

) arrow buttons to change the volume. Pressing the “OK” button exits this menu

The modified volume setting will be retained through ignition cycles unless configured not to do so. If not
configured, the volume setting will default to 100% on each new ignition cycle.
NOTE: The DIU can be configured to limit the minimum volume setting that the driver can select. The bar
shown above always represents the adjustable range based on minimum and maximum values. For example,
if the minimum value is set to 50% (midpoint between lowest (70 ± 3dB) and highest (89 ± 3dB) audio levels,
the bar represents an adjustable range from 50% (approx. 80dB) to 100% (approx. 89dB). Once the minimum
(or maximum) has been reached, a message will be shown indicating that further adjustment is not allowed
(e.g. “Minimum volume reached”). The step change per button press is approximately 2dB.

E1.4 Distance Setting (Dist. Setting)
On systems where changes are permitted, the “Distance Setting” option from the main menu will adjust the
following distance that the Bendix® Wingman® Advanced™ system will attempt to maintain while in the following
distance mode. Distance Settings 1, 2, 3, and 4 will have different meanings based on the configuration chosen by