Understand The Driver's Complaint - BENDIX Wingman ACB Service Data

UNDERSTAND THE DRIVER'S COMPLAINT

When diagnosing the ACB system, especially if there are
no diagnostic trouble codes logged, verify which part of the
system is operating improperly. Table 5 provides a guide
to basic troubleshooting questions and possible corrective
actions. Items in ALL CAPS direct you to the service
procedures in this manual to repair the condition described.
Questions To Ask The
Driver
Alignment Problems
Is the sensor mounting location
(bumper or cross member)
damaged?
Does the system seem to lose or
"not hold on to" the forward vehicle
when going around curves?
Does the system seem to warn late
when another vehicle cuts in front
of the truck?
Does the system seem to not "see"
as far as it "used to?"
Does the system seem to be
inconsistent when tracking forward
vehicles?
Are there false alerts when passing
other vehicles?
Blocked Sensor Issues
Is mud or snow covering the
sensor?
Is anything blocking the view of
the sensor?
Potential False Warnings
Do false alerts seem to happen in
construction zones or going under
bridges?
Other questions
Has the system worked properly
in the past and is not working
correctly now?
TABLE 5 - UNDERSTANDING THE DRIVER'S COMPLAINTS
Realign the sensor vertically and laterally. Use the following procedures:
• Check the VERTICAL ALIGNMENT and adjust if needed.
• Check the LATERAL ALIGNMENT and adjust if needed.
• Check the ACB MOUNTING - The ACB sensor needs a solid mounting surface in order to hold the alignment.
If the bumper or mounting cross member is damaged, replace it fi rst, then align the sensor.
Clean the sensor lens immediately. Remove anything blocking the sensor then power cycle and read any remaining
trouble codes.
Read BENDIX WINGMAN ACB DIAGNOSTIC TROUBLE CODES VIA BENDIX
® ®
If the vehicle's cruise control is "set" and the sensor is blocked by ice, snow, mud, tampering, etc. so that it cannot
"see" a forward target, Wingman
After the blockage is removed, the Wingman
a vehicle cruise control trouble code which must be cleared with an ignition key cycle.
Add a visual check of the radar sensor for blockage to the driver's pre-trip inspection checklist.
Several road scenarios have a tendency to cause false warnings including construction zones and bridges (if
stationary object warning is enabled). 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 complaints persist, continue
asking questions to more narrowly defi ne the driving condition presenting the problems. Review proper operating
conditions in the Operator's Manual.
This is a good indication that something has changed such as misalignment of the sensor. Review questions listed
above with the driver to further diagnose the problem.
If Bendix troubleshooting assistance is needed, complete
the Troubleshooting Checklist (See Appendix A) and have
it available for reference prior to contacting the Bendix
Tech Team at 1-800-AIR-BRAKE. Having this information
available will reduce the amount of time needed to
troubleshoot the system.
Next Steps
ACB will log a trouble code.
®
ACB trouble code will clear automatically. This process also will set
®
ACOM SOFTWARE.
® ®
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