Bendix Commercial Vehicle Systems WINGMAN ACB ACTIVE CRUISE W/BRAKING - Manual (Page 16)

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Overview of Possible Issues (3.3)
Issue Description
System familiarity Verify the system functionality. Is it operating normally or not? Drivers who are unfamiliar
with the system may report they don’t like 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: Questions to Ask the Driver 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
misalignment If the performance of the system seems to be erratic or unpredictable, the radar sensor could
be misaligned and may need to be aligned both vertically and laterally. If there is a DTC
set or if the system does not function, the radar sensor may be severely misaligned and
Wingman ACB will not operate until this is corrected. See Section 6.01: Vehicle Applications.
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 ACB.
Radar sensor
blocked If the system doesn’t seem to work at all, the radar sensor is probably blocked. A DTC will
also be set. Visually inspect it, clear the blockage, turn the ignition on and run through a
power cycle.
Vehicle diagnostic
trouble codes
(DTCs) The Wingman ACB 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 ACB. (NOTE: Clearing the vehicle DTCs may be the
only step needed to reestablish full Wingman ACB functionality. See Section 4.4: Clearing
Diagnostic Trouble Codes (DTCs)
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 lens and housing for damage. Radar sensor
discoloration or small scratches may be acceptable. Signifi cant damage 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 chaffi ng. Refer to Section
4.5: Troubleshooting Diagnostic Trouble Codes: Power Supply of this document for additional
troubleshooting.
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 ® ACB system performs normally.
Use Table 5 below to learn the causes of potential issues if Wingman ACB 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
.