Bendix Commercial Vehicle Systems VORAD EVT-300 TROUBLESHOOTING - Manual (Page 12)

Fault Isolation Procedures
2-1
Electrical Pretest
Overview
The pretest does not relate to any specifi c fault code, but must
be completed before performing Fault Code Isolation Table
procedures. The pretest verifi es the basic electrical inputs before
testing individual circuits.
Detection
There is no detection process specifi cally for the basic electrical
supply. However, failures of this type are generally detected by the
Bendix
™ VORAD ® system or the driver as some other type of fault
code or symptom.
Fallback
There is no fallback for the electrical pretest, however, it may affect
other systems.
Required Tools
• Basic Hand Tools
• Digital Volt/Ohm Meter
• Troubleshooting Guide
Possible Causes
This pretest can be used for any of the following:
• Corroded Power Contacts
• Blown Fuse
• Wiring Harness
• Low Batteries
Harness