Bendix Commercial Vehicle Systems VORAD VS-400 INSTALLATION NOTES - Manual (Page 34)

General Information
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Diagnostic Trouble Code (DTC)
Isolation Procedures
Component Code: 92
(SA 42, SPN 886, FMI 14)
Forward Looking Radar Not Detecting Objects or Radar Blocked
Overview
This code indicates that the Forward Looking Radar (FLR) has not detected a target in an excessive amount of time or has become
blocked .
Diagnostic Trouble Code (DTC) Detection
When the FLR has gone a period of time without receiving any reflected radar signals this Diagnostic Trouble Code (DTC) is set . This
may simply indicate that the vehicle has been in an extremely desolate area without any vehicles or objects to reflect its radar signals .
Non-vehicular objects such as road signs, highway overpasses and background trees should provide enough radar signals to prevent this
Diagnostic Trouble Code (DTC) from being set . This Diagnostic Trouble Code (DTC) may also indicate that the FLR has become blocked by
mud, snow, ice, or other debris .
Symptom
The Bendix ™ VORAD ® VS-400 Collision Warning System and the Bendix ™ SmartCruise ® adaptive cruise control will fail to operate, however,
the driver will have access to conventional cruise control . The Driver Interface Unit (DIU) will illuminate an orange DTC light and display a
message indicating the Diagnostic Trouble Code (DTC) condition . If the VS-400 system once again begins to detect objects, the condition
will clear and the system will resume normal operation .
Possible Causes
• Obstructed Radar View
• Correct Operation, but with a lengthy time since the last radar object was detected
Repair Procedure
Active Diagnostic Trouble Code (DTC) Steps to Perform
Code 92, FMI 14 1 . Check the Forward Looking Radar for debris buildup (snow, mud, etc .) or if the radar's
view is being obstructed .
Note: This Diagnostic Trouble Code (DTC) is automatically set inactive after each
power cycle .
2 . Road test vehicle and make sure the Diagnostic Trouble Code (DTC) condition has
cleared .
3 . Test Complete .