Bendix Commercial Vehicle Systems WINGMAN ADVANCED SD - Manual (Page 14)

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3.2 NARROWING DOWN THE PROBLEM
Use the questions found in Table 3.2 below to help assess if the Bendix ® Wingman ® Advanced ™ system is not performing
correctly. Be sure to have a thorough understanding of the system’s normal behavior; this will reduce the troubleshooting
time. The table provides a guide to basic troubleshooting questions and possible corrective actions. Items in Italics
cross-reference to the service procedures in this manual to repair the condition described.
If Bendix Tech Team assistance is needed, prior to calling 1-800-AIR-BRAKE, complete the Troubleshooting Checklist
(See Appendix A), to help reduce the time needed to troubleshoot the system.
Narrowing Down the Problem (3.2)
Questions Next Steps
Alignment Problems
Is the radar 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 on
vehicles in adjacent lanes? • Are there false
alerts when passing other vehicles? • 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”, or warn on many more overhead bridges/
signs than previously? • Does the system
seem to be inconsistent when tracking
forward vehicles?
Re-align the radar sensor vertically and laterally. Use the following procedures:
•
Section 6.07: Check Vertical Alignment and adjust if needed.
• Section 6.09: Check Lateral Alignment and adjust if needed.
• Section 6.02: Check Radar Sensor Mounting – The radar 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 radar sensor.
Blocked Radar Sensor Issues
Is mud, ice, or snow covering the radar
sensor?
Is anything blocking the view of the radar
sensor? Clean the radar sensor lens immediately. Remove anything blocking the radar
sensor then power cycle and read any remaining trouble codes.
Read Section 4.3: Diagnostic Trouble Codes.
If the vehicle's cruise control is set and the radar sensor is blocked by ice,
snow, mud, tampering, etc. so that it cannot "see" a forward vehicle, Wingman
Advanced will log a diagnostic trouble code (DTC).
After the blockage is removed, the DTC will clear automatically. This process also
will set a vehicle cruise control DTC 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.
Potential False Warnings
Do false alerts seem to happen in
construction zones or going under bridges?
Several road scenarios have a tendency to cause false warnings, including
construction zones and bridges. 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.
Other Questions
Has the system worked properly in the past
and is not working correctly now? This is a good indication that something has changed, such as misalignment
of the radar sensor. Review questions listed above with the driver to further
diagnose the problem.
Has the radar sensor been changed
recently? If so, the new radar sensor may be incompatible with the vehicle. Follow Section
1.10: Radar Sensor Interchangeability procedure and check system trouble codes
with Bendix
® ACom ® Diagnostics software.
Read Section 4.3: Diagnostic Trouble Codes.
TABLE 4 - NARROWING DOWN THE PROBLEM (PAGES 14-15)