Bendix Commercial Vehicle Systems VORAD VS-400 INSTALLATION NOTES - Manual (Page 33)

General Information
31
Diagnostic Trouble Code (DTC)
Isolation Procedures
Component Code: 91
(SA 42, SPN 886, FMI 7)
Forward Looking Radar Out of Alignment
Overview
This code indicates that the Forward Looking Radar (FLR) has determined that the radar is misaligned .
Diagnostic Trouble Code (DTC) Detection
When the vehicle is in motion, the FLR will calculate the vehicle’s center thrust axis and compare this to the radar’s physical horizontal
alignment to determine if the radar is aligned properly . The radar software can compensate for a very slight misalignment
(+ / - 1°). When the FLR has determined that the position is off by more than what it can correct for, the Diagnostic Trouble Code (DTC) is
set .
Symptom
The Bendix ™ VORAD ® VS-400 Collision Warning System and the Bendix ™ SmartCruise ® adaptive cruise control will continue to operate,
however, the radar's ability to detect objects at an angle will be compromised . The Driver Interface Unit (DIU) will display a message
indicating the Diagnostic Trouble Code (DTC) condition .
Possible Causes
• Loose or Misaligned Radar
Repair Procedure
Active Diagnostic Trouble Code Steps to Perform
Code 91, FMI 7 1 . Perform the Forward Looking Radar Alignment procedure located in the Appendix .
2 . Road test vehicle and make sure the Diagnostic Trouble Code (DTC) condition has
cleared .
3 . Test Complete .