Bendix Commercial Vehicle Systems VORAD EVT-300 TROUBLESHOOTING - Manual (Page 4)

1-1
Fault Isolation Procedures
Diagnostic Procedure
Follow the fl owchart below for all Bendix ™ VORAD ® system failures. Perform tests and procedures as directed by the fl owchart.
Key On
Is the
Driver Display
Unit lamp lit?
(For Freightliner IDI,
skip this step.)
Active
Codes?
Inactive
Codes?
Symptom?
Retrieve Active Codes
(page 1-3)
Retrieve Active Codes
(page 1-3)
Test Complete.
•
Perform Electrical Pretest
(page 2-1)
•
Perform Power-up Sequence Test
(page 2-5)
•
Perform Electrical Pretest
(page 2-1)
•
Refer to the Fault Code Isolation
Procedure Index to select a fault
code isolation procedure (page 1-4)
•
Perform Electrical Pretest (page 2-1)
Record and clear codes (page 1-3)
•
Perform Driving Techniques to
reproduce the inactive fault code
(page 1-5)
Refer to the Fault Code Isolation
Procedure Index to select a fault
code isolation procedure (page 1-4)
•
Perform Electrical Pretest
(page 2-1)
•
Refer to the Symptom-Driven
Index to select a symptom isolation
procedure (page 1-8)
NO
YES
YES
YES
YES
NO
NO
NO