Bendix Commercial Vehicle Systems WINGMAN ADVANCED FLR20 SENSOR - Manual (Page 16)

16
Overview of Possible Issues (3.3)
Issue Description
Vehicle diagnostic
trouble codes
(DTCs)
The Wingman Advanced system will not operate and will set a DTC if any of the following
vehicle systems also show a DTC: engine, engine cruise, instrument cluster, Bendix ® ABS,
Bendix ® ATC, Bendix ® ESP, or transmission. These components must be repaired and
cleared of DTCs before troubleshooting Wingman Advanced. (NOTE: Clearing the vehicle
DTCs may be the only step needed to reestablish full Wingman Advanced functionality. See
Section 4.4: Clearing Diagnostic Trouble Codes (DTCs)
System familiarity Verify the system functionality. Is it operating normally or not? Drivers who are unfamiliar
with the system may report dissatisfaction over the way it beeps or how it activates the
brakes. Use Section 3.0: Introduction to Troubleshooting, Section 4.3: Diagnostic Trouble
Codes and Section 3.1: Troubleshooting Basics to verify if the system is functioning normally;
then continue.
DTCs caused by
temporary operating
conditions
Some Diagnostic Trouble Codes (DTCs) indicate a temporary condition and will clear when
that condition is no longer present. If these persist, further investigation is warranted. See
Section 3.1: Troubleshooting Basics.
Radar sensor
blocked
If the system doesn’t seem to work at all, the radar sensor may possibly be blocked. A DTC
will also be set. Visually inspect it, clear the blockage, turn the ignition on and run through a
power cycle. See Appendix A3 for more information about radar mounting clearance.
Damaged radar
sensor or bracket
If the vehicle has been in an accident, it is likely the radar sensor will need to be re-aligned
or replaced. Inspect the radar sensor and housing for damage. Radar sensor discoloration
or small scratches may be acceptable. Significant damage (such as cracks, or broken
pieces) will require radar sensor replacement. Regardless of the exterior condition, check
for diagnostic trouble codes outlined in the Section 4.3: Diagnostic Trouble Codes (DTCs) to
determine if radar sensor replacement is necessary.
Damaged connector
or wiring
Visually inspect the connector and wire harness for corrosion or chafing. Refer to Sections
4.5: Troubleshooting Diagnostic Trouble Codes: Power Supply and 4.6 Serial Data (J1939)
Communications Link of this document for additional troubleshooting.
Radar sensor
misalignment
Inspect the front of the vehicle. If (a) it has been damaged, or (b) if the vehicle does not track
straight, either of these conditions must be repaired before troubleshooting Wingman Advanced.
If there is a DTC set or if the system does not function, the radar sensor may be severely
misaligned and Wingman Advanced will not operate until this is corrected. See Appendix B -
Bendix Wingman Advanced Radar Alignment.
J1939 network
problems
If the entire system is non-functional, it may be a J1939 network problem. Follow the
instructions in Section 4.6: Serial Data (J1939) Communications Link.
Power to radar
sensor problems
If the entire system is non-functional, another likely cause may be a lack of power to the radar
sensor. Follow the instructions in Section 4.5: Troubleshooting Diagnostic Trouble Codes: Power
Supply.
TABLE 5 - REVIEW OF POSSIBLE ISSUES
3.3 OVERVIEW OF POSSIBLE ISSUES
Some customer issues are actually misunderstandings of how the Bendix ® Wingman ® Advanced ™ system performs
normally. Use Table 5 below to learn the causes of potential issues if Wingman Advanced is not performing correctly.
Some issues can be investigated by a visual inspection. Others may cause a diagnostic trouble code (DTC) to be logged:
See Section 4.3: Diagnostic Trouble Codes.