Fault Isolation Procedures

Diagnostic Procedure

Follow the flowchart below for all BendixVORAD® system failures. Perform tests and procedures as directed by the flowchart.

Key On

Is the

Driver Display

Unit lamp lit? NO

(For Freightliner IDI,

skip this step.)

YES

Retrieve Active Codes

(page 1-3)

Perform Electrical Pretest (page 2-1)

Perform Power-up Sequence Test (page 2-5)

ActiveYES Codes?

NO

Retrieve Active Codes

(page 1-3)

InactiveYES Codes?

NO

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)

Symptom?

YES

Perform Electrical Pretest (page 2-1)

Refer to the Symptom-Driven Index to select a symptom isolation procedure (page 1-8)

NO

Test Complete.

1-1

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BENDIX BW2849 manual Diagnostic Procedure, Yes