B1.0 Radar Alignment Flowchart
For Bendix™ FLR-10™ radar sensors, see Bendix Service Data Sheet (SD-61-4962).

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

YES

Call the Tech Team:
1-800-AIR-BRAKE
(1-800-247-2725),
option 2.

NO
Is the
radar and/or
bracket being
replaced?

YES

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

NO
Is
an alignment
Diagnostic Trouble Code (DTC) 46 set?
(SPN886-FMI7)

YES
NO

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

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

YES
Is the DIU
software version 12.220
or newer?

NO

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 Alignment
Procedure to correct the alignment (Appendix D).

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-20™ 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 Bendix® Wingman® Fusion™.
If the alignment is outside a certain range it could cause false warnings, missed warnings, and a Diagnostic Trouble
Code (DTC) in the system.
The radar sensor is mounted to the front of the vehicle using a bracket with three stand-offs, two 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

A technician makes an adjustment to
the lateral alignment standoff.

The vertical alignment standoff is adjusted.

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

38

Appendix B

Appendix B
Bendix FLR-20™ Radar 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, and also shows the technician the direction
to turn, and 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.

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

Appendix B

39

Appendix B
Bendix FLR-20™ Radar Alignment
™

B3 Lateral Alignment Using Bendix® ACom® PRO™ Diagnostic Software

Use this method to align the Bendix™ FLR-20™ radar laterally – when the vehicle
does not have a Bendix™ DIU™, or has a DIU (but its software version is prior to 12.220).
B3.1

Tools needed: Bendix ACom PRO diagnostic software, and a Torx® T-20 screwdriver.

B3.2

Connect the vehicle to a laptop computer with the current release of the ACom PRO software.

B3.3

See the “Alignment Value” shown on the Configuration screen.
If the alignment value shown by the ACom PRO software is between -1.5° and 1.5­°, this is within operating
range and system should operate normally. A value outside that range means the radar sensor should be
adjusted.

The Bendix ACom PRO Diagnostic Software Screen Showing the (Lateral) Alignment Value

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)

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 PRO software is two degrees (plus or minus).

40

Appendix B

Appendix B
Bendix FLR-20™ Radar Alignment
™

B3 Lateral Alignment Using Bendix® ACom® PRO™ 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

Then follow steps B3.7–12 to reset the alignment value stored in the system.

B3.7

Procedure to Reset the Alignment Value. Select Wingman Fusion system on the starter screen, and then
select “Start with ECU.” Select “Config” on the Wingman Fusion system Status window.

B3.8

Select “Modify” on the Configuration Status window.

Bendix® ACom® PRO™ diagnostic software: configuration and change configuration screens

B3.9

Select “Reset Alignment Value” in the Change Configuration box. (See Appendix H for more details.)

B3.10 Close the ACom PRO diagnostic software program and any open windows.
B3.11 Cycle the vehicle ignition.
B3.12 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 PRO software.
Call the Bendix Tech Team at 1‑800‑AIR‑BRAKE (1‑800‑247-2725), option 2, for troubleshooting assistance.
Appendix B

41

Appendix B
Bendix FLR-20™ Radar 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, go on 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!!

42

Appendix B

Appendix B
Bendix FLR-20™ Radar 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 zero degrees.

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 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.
Pitch
Alignment
Value Range
(Degrees)
5.3

8 clockwise

4.6

7 clockwise

4

6 clockwise

3.3

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

B4.7

Service Action

Number of Full Turns of
the Vertical Alignment
Adjustment Screw

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.

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

43

APPENDIX C - RADAR ALIGNMENT USING A BENDIX® ALIGNMENT CLIP AND TOOL
Appendix C
Bendix FLR-20™ Radar 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 part no: 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)

Alignment Tool
with Laser
Guide

K065284
Install Steel Clip over
Bendix™ FLR-20™ 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.)

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

44

Appendix C

Appendix C
Bendix FLR-20™ Radar 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 inches (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

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" (3 mm), no alignment is necessary and
the technician can go 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.

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

Appendix C

45

Appendix C
Bendix FLR-20™ Radar 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