Bendix Commercial Vehicle Systems VORAD EVT-300 TROUBLESHOOTING - Manual (Page 92)

Fault Isolation Procedures
2-81
Component Code: 33
(SID 248, FMI 12)
VBUS Error
Overview
This fault code indicates the Antenna, Central Processing Unit,
and/or Driver Display Unit are unable to communicate.
Detection
Starting at key on and throughout the operation, the Central
Processing Unit constantly monitors the communication with the
Antenna and Driver Display Unit. If a communication fault occurs
for more than 5 seconds, fault code 33 is set.
Fallback
This fault causes a failure of the Bendix ™ VORAD ® system.
Required Tools
• Basic Hand Tools
• Troubleshooting Guide
• Digital Volt/Ohm Meter
Possible Causes
This fault code can be caused by any of the following:
• OEM Harness
• Antenna Assembly
• Central Processing Unit
• Driver Display Unit
Central
Processing Unit Driver
Display Unit
Harness