Bendix Commercial Vehicle Systems VORAD EVT-300 TROUBLESHOOTING - Manual (Page 86)

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