Fault isolation procedures, Overview, Detection – Bendix Commercial Vehicle Systems VORAD EVT-300 TROUBLESHOOTING User Manual
Page 86: Fallback, Required tools, Possible causes, This fault code indicates the bendix, Vorad, This fault causes a failure of the vorad system, Central processing unit harness
Fault Isolation Procedures
2-75
Component Code: 31
(SID 250, FMI 2)
J-1587 Data Link Error
Overview
This fault code indicates the Bendix
™
VORAD
®
system failed to
communicate with the engine over the J-1587 data link.
Detection
Starting at key on and throughout the operation, the VORAD
Central Processing Unit constantly monitors the communication
with the engine ECU. If a communication fault occurs for more than
2.5 seconds, this fault is set.
Fallback
This fault causes a failure of the VORAD system.
Required Tools
•
Basic Hand Tools
•
Digital Volt/Ohm Meter
•
Troubleshooting Guide
Possible Causes
This fault code can be caused by any of the following:
•
J-1587 Data Link
•
Engine ECU
•
Central Processing Unit
A
B
C
D
E
F
J C D
B
A
G
H
E
F
Central
Processing Unit
Harness
Connect to
Engine ECW
J1587 Data Link
For VORAD
diagnostics
9-way
G
F
G
A
C
A
B
E
6-way