the user in Bendix® ACom® Diagnostic Software. Generally, 4 relates to the farthest distance setting available and
1 relates to the closest distance setting available. In many of the Advanced configurations available in ACom, two
or more distance settings may be made equivalent to one another.
For more information on user configurations available through the Bendix ACom Diagnostic Software, refer to Section 3.4:
Configuring Bendix Wingman Fusion System Following Distance Alerts for further information.

Selecting “Dist. Setting” from the main menu displays the following screen:

(No LEDs
Illuminated)

Text
Here*

* Text may vary
depending on the
system installed

E1.5 Distance Units (Dist. Units) (Refer to Appendix E1.6 for metric units)
From the “Dist. Units” menu item, the driver may choose to have the following distance from the forward vehicle
displayed in either seconds or feet. By default, this item is set to seconds. If the driver selects feet, the DIU will
display the approximate distance from the bumper to the selected forward vehicle in feet. If the driver selects
seconds, the DIU will display the approximate distance from the bumper to the selected forward vehicle in seconds.
NOTE: Following distance in seconds is calculated based on the current speed of the Fusion system‑equipped
truck, and the distance, in feet, away from the selected forward vehicle. For instance, if the selected forward
vehicle is 88 feet (27 m) from the bumper of the Wingman Fusion system-equipped truck, and the Fusion
system‑equipped truck is traveling 60  mph / 97 kph, then the following distance in seconds would be 1.0 seconds
because a truck traveling 60  mph / 97 kph can travel 88 feet (27 m) in one (1) second.
Call the Bendix Tech Team at 1‑800‑AIR‑BRAKE (1‑800‑247-2725), option 2, for troubleshooting assistance.
50

Appendix E

Appendix E
Bendix™ Driver Interface Unit (DIU™): Displays & Alerts
E1.6 U.S./Metric
From this menu item, the driver may select whether English (U.S.) or Metric units are displayed. For instance
in “Metric” mode, the following distance is shown in meters. In “U.S.” mode, the following distance is shown
in feet.

E1.7 Brightness
Selecting Brightness from the main menu displays the following screen:
(No LEDs
Illuminated)

Brightness

The driver uses the up ( )/down ( ) arrow buttons to change the LCD backlighting, LED brightness and
button backlighting. Pressing the OK button exits this menu item.
The light sensor reading determines whether the current cab lighting mode is bright (day) or dark (night).
When the light mode is bright, any brightness adjustment made by the driver is applied to only the bright
mode setting. Likewise, when the light radar sensor sets the light mode to dark, any brightness adjustment
made by the driver is applied to only the dark mode setting. This functionality allows the driver to adjust the
brightness setting for the two cab lighting conditions after which the DIU will automatically toggle between the
two settings based on the light radar sensor’s input. Both the bright mode setting and the dark mode setting
are stored across power cycles.
NOTES: The DIU does not allow the brightness control to completely shut off the LEDs.
DIU units without a light sensor will use signals from the vehicle's J1939 CAN bus to
determine and configure the day and night setting.

E1.8 System Status
This screen shows the configured features of the system and their current operational status (i.e., “Failed” or
“OK”). The failed status means that some system malfunction is preventing the feature from properly operating
and that the feature is not available for use by the driver at this time. Pressing “OK” exits this menu item.
Bendix
(No LEDs
Illuminated)

E1.9 Diagnostics
Selecting Diagnostics from the main menu displays any active Bendix® Wingman® Fusion™ system Diagnostic
Trouble Code (DTC) conditions – including SAE standard diagnostic codes called J1939 SPNs (Suspect
Parameter Numbers) and J1939 FMIs (Failure Mode Identifiers) – that may be present in the DIU and radar
sensor. The following is a typical screen displayed in this mode when an active DTC is present:

DIU DIAGNOSTICS
(No LEDs
Illuminated)

SPN:00886 FMI:012

Note: The Forward Looking Radar
(FLR) will not report newly active
J1939 DTCs until the engine has
been running for 15 seconds. Do
not attempt to diagnose FLR J1939
DTCs without the engine running.

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

51

Appendix E
Bendix™ Driver Interface Unit (DIU™): Displays & Alerts
E2.0 Driver Demonstration Mode
Selecting Demo from the main menu starts a demonstration mode that shows the various lights, display
screens, and sounds produced by the DIU – along with a brief explanation of their meaning – for the configured
features. Pressing the down ( ) arrow button advances through the screens. The up ( ) arrow button has
no functionality in this mode. Demonstration mode may be exited at any time by pressing the OK button.
NOTE: This mode can only be entered while the vehicle is not moving. Also, while in the demonstration mode,
if the vehicle begins to move, the demonstration mode terminates.
If a screen is associated only with a configurable feature, and that feature is not configured, then that screen
will not be shown in the demonstration mode.
The screens presented to the driver in the demonstration mode are shown with the following text: “Error!
Reference source not found.”

E3.0 Following Distance Alerts (FDAs)
One of the features of the Bendix® Wingman® Fusion™ system is the Following Distance Alert (FDA). A
proprietary system combining vehicle speed, forward vehicle speed, distance, and driving scenario, FDAs are
used to provide the driver with distance alerts which are intelligent, in that they will give appropriate distance
alerts for the given situation. They alert the driver to objects far ahead in highway and country road driving
situations, while not over-alerting in dense city traffic. They are available when the vehicle is traveling at
speeds above 5 mph / 8 kph.
The radar sensor uses the DIU to communicate the FDA alerts to the driver. This system can be configured
through a current version of Bendix® ACom® Diagnostic Software, for use by a fleet as a driver training tool
with or without coordinating the data made available by the Bendix Wingman Advanced System. In addition
to being a reminder of when a driver may be dangerously close to the vehicle ahead, the following distance
alerts may also be configured to reinforce safe following distance habits taught by the fleet.
The FDA is based on the following interval between the host vehicle and the object ahead. In other words,
this is the time required by the host vehicle to travel forward and reach the object’s current location. With the
exception of the volume, the FDA may not be adjusted by the driver through the DIU. A qualified technician
must connect to the vehicle through the diagnostic port and run ACom Diagnostic Software, in order to change
the configuration. The volume cannot be turned all the way down, but other adjustments may be made by the
fleet. Refer to Section E1.3 for more details on volume adjustment.
The FDA system is intended only to alert the driver about following distance. For more information on alerts
for forward objects with high relative velocities and sudden decelerations, refer to Section E4.0: Impact Alert.
Only objects detected in the vehicle's lane, traveling in the same direction, are considered valid objects for the
FDA. For more information on stationary objects, refer to Section B5.0: Stationary Object Alert and Appendix
E.
Call the Bendix Tech Team at 1‑800‑AIR‑BRAKE (1‑800‑247-2725), option 2, for troubleshooting assistance.

The driver is always responsible for the control and safe
operation of the vehicle at all times. The Bendix Wingman
Fusion system does not replace the need for a skilled,
alert professional driver, reacting appropriately and in a
timely manner, and using safe driving practices.

52

Appendix E

Appendix E
Bendix™ Driver Interface Unit (DIU™): Displays & Alerts
E3.1 Object Detected
When there is no valid object detected and no other high priority alert is displayed, the DIU will stand by with
the following screen:

(No LEDs
Illuminated)

When a valid object is detected, and is outside the range of the first level of alert, and no other higher priority
alert is displayed, the DIU will display the image shown below and no audio tones will be issued. The distance
to the object will be displayed in large characters in the white space at the center of the screen (not shown) in
seconds, feet, or meters, depending on the menu-selected preferences. By default, seconds will be displayed.

(No LEDs
Illuminated)

Object Detected

E3.2 Following Distance Alert (FDA) Level 3 (Slow audible two-tone alert/single LED illuminated)
When FDA Level 3 is issued, the following distance to the object/vehicle ahead has been reduced to the
distance determined in the current configuration for FDA Level 3. The DIU will begin to give the driver audio
and visual alerts for as long as the forward vehicle is in this zone and traveling at the same speed or slower.
The DIU will not display following distance units while in an FDA Level. For FDA Level 3, the audible alert will
be a single repeating tone, and the visual alert is a single yellow LED and a screen with the vehicles slightly
closer as shown below.

Single Yellow LED
Illuminated

Object Detected

E3.3 Following Distance Alert (FDA) Level 2 (Medium audible two-tone alert/two LED’s illuminated)
The DIU will give the driver audio and visual alerts for as long as the object/vehicle ahead is in this zone and
traveling at the same speed or slower. The DIU will not display following distance while in an FDA Level. For
FDA Level 2, the audible alert will be a repeating double tone, and the visual alert is two (2) yellow LEDs and
a screen with the vehicles closer as shown below.
Object Detected

Two Yellow LEDs
Illuminated

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

53

Appendix E
Bendix™ Driver Interface Unit (DIU™): Displays & Alerts
E3.4 Following Distance Alert (FDA) Level 1 (Fast audible two-tone alert/three yellow LEDs illuminated)

The DIU provides the driver with audio and visual alerts for as long as the vehicle ahead is in this zone and
traveling at the same speed or slower. This is the closest and most urgent Following Distance Alert.
The DIU will not display following distance while in an FDA Level. For FDA Level 1, the audible alert will be a
continuously repeating tone, and the visual alert is three (3) yellow LEDs and a screen with the vehicles close
as shown below:
Object Detected

All Yellow LEDs
Illuminated

All five states of the FDA system can be seen together below.

(No LEDs
Illuminated)

(No LEDs
Illuminated)

(No Tone)

Object Detected

(No Tone)

Object Detected

(Single Repeating
Double Tone)

Object Detected

(Repeating
Double Tone)

Object Detected

(Continuously
Repeating Tone)

FDA Level 3:
Single Yellow
LED Illuminated

FDA Level 2:
Two Yellow
LEDs Illuminated

FDA Level 1:
All Yellow LEDs
Illuminated

Call the Bendix Tech Team at 1‑800‑AIR‑BRAKE (1‑800‑247-2725), option 2, for troubleshooting assistance.
54

Appendix E

Appendix E
Bendix™ Driver Interface Unit (DIU™): Displays & Alerts
E4.0 Impact Alert (IA)
The “Impact Alert” uses a combination of distance to the vehicle ahead, plus high relative velocity, to decide when
to issue a loud solid tone, as well as a visual indicator to the driver. The red LED bar across the top of the DIU will
illuminate and “DRIVER INTERVENTION REQUIRED” will flash using the two screens below:
All Red LEDs Illuminated
DRIVER INTERVENTION

Screen
flashes
between
these two
displays

DRIVER INTERVENTION
REQUIRED

REQUIRED

DRIVER INTERVENTION
REQUIRED

When the IA activates, the driver must immediately act to potentially avoid, or lessen the severity of,
a collision.
The impact alert cannot be configured or turned off.
NOTE: At most, the active cruise control with braking feature of Bendix® Wingman® Fusion™ system will apply
the vehicle’s brakes. The driver must apply additional braking, when necessary, in order to maintain a safe
distance from the vehicle ahead.

E4.1 Collision Mitigation Braking (CMB)
If a collision is likely to occur, and the collision mitigation feature activates the foundation brakes, the tone
of the alert will typically change and the display will be as shown below. The driver must immediately act to
potentially avoid, or lessen the severity of, a collision.
All Red LEDs Illuminated
WINGMAN

Screen
flashes
between
these two
displays

WINGMAN

BRAKING

BRAKING
WINGMAN

BRAKING

NOTE: The collision mitigation feature of the Bendix Wingman Fusion system will apply the vehicle’s brakes.
Call the Bendix Tech Team at 1‑800‑AIR‑BRAKE (1‑800‑247-2725), option 2, for troubleshooting assistance.

Appendix E

55

Appendix E
Bendix™ Driver Interface Unit (DIU™): Displays & Alerts
E5.0 Stationary Object Alert (SOA)
Stationary Object Alert (SOA) is an alert given to the driver when the radar detects a sizeable, non-moving
metallic object in the vehicle's path of travel. To reduce the number of false detections, such as bridges and
overhead signs, a set of filters are put in place so the SOA will not warn on every stationary object. Typically
the SOA is ready to alert the driver whenever the vehicle is moving above ten (10) mph / 16 kph, but some OEs/
fleets may select higher minimum speeds.
The SOA can be configured to be on or off through the display.
If a SOA is issued – up to three (3) seconds before a potential impact – the DIU will very briefly send out an
alert identical to a very brief FDA Level 2: continuous tone and two (2) yellow LEDs, with the display image
switching between the two shown below.
“Object” icon
flashes
between
these two
symbols

Two
Yellow
LEDs
Illuminated

E6.0 Stationary Vehicle Braking (SVB) Alert

When a large, stationary, metallic object in a vehicle’s lane of travel is definitively identified as a
vehicle, the driver is notified up to 3.5 seconds before impact.
If the driver does not take action to address the potential impact that caused the alert, Wingman
Fusion can automatically engage the brakes to assist the driver in reducing the severity of or
potentially avoiding a collision with that stationary vehicle. If the system cannot definitively identify
the stationary object as a vehicle – for example, if the vehicle is not a licensed motorized vehicle, or
certain types of trailers – the driver will get up to 3.0 seconds of alert to address the situation ahead;
no automatic braking will be applied. Stationary Vehicle Braking is most useful when approaching
a line of stopped traffic or a stalled vehicle that is not immediately recognized by the driver.

The SVB is ready to alert the driver whenever the vehicle is moving above 15 mph / 24 kph, but although that figure is
typical, some OEs/fleets may select higher minimum speeds. The driver should be especially careful when approaching
certain types of vehicles or objects. The Bendix® Wingman® Fusion™ system radar may not be able to detect vehicles
with limited metal surfaces (such as recreational vehicles, horse-drawn buggies, motorcycles, logging trailers, etc.).
NOTE: Entering a curve may reduce the alert time.
All Red LEDs Illuminated
DRIVER INTERVENTION
DRIVER INTERVENTION
REQUIRED

Screen
flashes
between
these two
displays

REQUIRED

DRIVER INTERVENTION
REQUIRED

Call the Bendix Tech Team at 1‑800‑AIR‑BRAKE (1‑800‑247-2725), option 2, for troubleshooting assistance.
56

Appendix E

Appendix E
Bendix™ Driver Interface Unit (DIU™): Displays & Alerts
E7.0 ACB (Active Cruise Control with Braking) Icon
The ACB icon appears in the upper left-hand corner of the DIU’s screen to indicate to the driver that the active
cruise control with braking feature of the Bendix® Wingman® Fusion™ system is ready and able to intervene.
Once the driver sets cruise, the DIU will display the set speed and the ACB icon as shown below.

ACB

(No LEDs
Illuminated)

Set
Speed

55

mph

When a forward vehicle is detected and either the distance to the vehicle or a following distance alert is
shown, the ACB icon should remain on the screen if the active cruise control feature of the Wingman Fusion
system is still engaged and ready to intervene.

ACB Object Detected

Two Yellow LEDs
Illuminated

If the ACB icon is not displayed on the screen, the driver must assume that the active cruise control with
braking feature of the Bendix Wingman Fusion system is not ready, or able, to intervene!

E8.0 Brake Overuse Alert

The Bendix Wingman Fusion system provides a warning when the system is intervening and using the
foundation brakes excessively. Overuse of the foundation brakes can lead to the brakes overheating and a
potential loss of braking performance caused by brake fade. Using cruise control on downhill runs will cause
this alert to be activated.

Grades should be approached normally, with the appropriate gear selected and at a safe speed. Cruise
control should NOT be used on downhill grades.
Call the Bendix Tech Team at 1‑800‑AIR‑BRAKE (1‑800‑247-2725), option 2, for troubleshooting assistance.

Appendix E

57

Appendix E
Bendix™ Driver Interface Unit (DIU™): Displays & Alerts

Cruise Control should NOT be used on downhill grades. Grades should be approached normally, with the
appropriate gear selected and at a safe speed.
To guard against foundation brake overuse by the active cruise control with braking feature of the Bendix® Wingman®
Fusion™ system, the frequency of foundation brake interventions is monitored. If the system detects a situation where
the brakes are being applied too frequently by the system in a given time period, the brake overuse alert will activate.
This is designed to help prevent overheating of the brakes, which may lead to brake fade and reduced vehicle braking
capability. In this situation, the Brake Overuse Alert (BOA) will flash a message requesting driver intervention. Also, an
audible alert will sound and a blue LED will blink on the Bendix Driver Interface Unit (DIU™), as illustrated below:
DRIVER INTERVENTION

Blue
LED
Blinks

Screen
flashes
between
these two
displays

DRIVER INTERVENTION
REQUIRED

REQUIRED

DRIVER INTERVENTION
REQUIRED

This alert will continue for 15 seconds, during which time the driver should step on the brake or turn off cruise
control using the cruise control on/off switch.

If the system
detects that
the driver has
intervened
within
15 seconds after
a brake overuse
alert
(Typically by
applying the
brakes, or
cancelling cruise
control)

•

The intervention cancels cruise control.

•

WARNING: After a BOA, for a period of time (typically 20 minutes), the Wingman
Fusion system will not use the foundation brakes when intervening. The system
will be limited to de-throttling the engine and applying the engine retarder. NOTE: In all
cases, the driver still has the ability to apply the foundation brakes if necessary. The
driver should take care since overheated brakes may reduce the vehicle’s braking
capability.

•

The time period for this mode is measured from the time the BOA was activated and lasts
approximately 20 minutes.

•

NOTE: The driver will continue to receive all three alerts (Following Distance, Impact, and
Stationary Object).

•

Additionally, the DIU message will change to “ACB Braking Overuse” and the blue LED will
remain lit, as shown below:

Bendix

Blue LED
Stays On

If the system
does not
detect an
intervention by
the driver within
15 seconds after
a brake overuse
alert

_____________________
ACB BRAKING OVERUSE
Press OK for Menu

At the end of the
“cooling-off” period, the
“ACB Braking Overuse”
message and the blue
LED will turn off.

•

The system will shut itself off, and set a Diagnostic Trouble Code (DTC).

•

WARNING: All intervention features of the Fusion system will be disabled until the
next ignition cycle.

•

NOTE: The driver will continue to receive all three alerts (Following Distance, Impact, and
Stationary Object).

•

NOTE: In all cases, the driver still has the ability to apply the foundation brakes if
necessary. The driver should take care since overheated brakes may reduce the
vehicle’s braking capability.

Call the Bendix Tech Team at 1‑800‑AIR‑BRAKE (1‑800‑247-2725), option 2, for troubleshooting assistance.
58

Appendix E

Appendix E
Bendix™ Driver Interface Unit (DIU™): Displays & Alerts
E9.0 Lane Departure Warning (LDW) Alert

The Bendix® Wingman® Fusion™ system has the ability
to warn the driver if the vehicle is not tracking in the
intended roadway path. In most vehicle applications
the LDW system is enabled above 37 mph / 59 kph. The
driver should immediately correct the vehicle tracking
and maintain the correct position in the lane.
Red LED illuminated indicates
the direction of departure

Out
of
Lane

Out
of
Lane

E10.0 Overspeed Alert (OA)

The Bendix Wingman Fusion system has the ability
to warn the driver if the vehicle’s speed exceeds the
posted legal limits. The Overspeed Alert is enabled
when the vehicle is traveling greater than 5  mph / 8 kph
from the posted limit. The driver should immediately
reduce the vehicle’s speed to the posted legal limit.
Note that the system does not activate overspeed
alerts where the posted speed limit is
20  mph / 32  kph or less.
Example of Overspeed Alert Display
SPEED
LIMIT

55

Over Speed
Limit

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

59

APPENDIX F - HOW TO GENERATE, READ, AND RESET THE BENDIX® WINGMAN® SYSTEM
DIAGNOSTIC TROUBLE CODES (DTCs) USING BENDIX® ACOM® DIAGNOSTIC SOFTWARE

Appendix F
F1: How to Generate a DTC Report with Bendix® ACom® Diagnostic Software
1. Connect a current version of the Bendix® ACom®
Diagnostic Software with the vehicle.

2. O
nce the roll call is complete, you can select the DTC Report
icon on the top menu.

3. The DTC report drop-down gives you the following
options: