Fault isolation procedures, Overview, Detection – Bendix Commercial Vehicle Systems VORAD EVT-300 TROUBLESHOOTING User Manual
Page 78: Fallback, Required tools, Possible causes, Shield termination engine ecm terminating resistor, Central processing unit

Fault Isolation Procedures
2-67
Component Code: 25, 32
(SID 231, FMI 2, 12, 14)
J-1939 and Cruise Signal Error
Overview
This fault code indicates that VORAD failed to communicate with
the engine over the J-1939 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
5 seconds, this fault is set.
Fallback
This fault causes a failure of the Bendix
™
VORAD
®
system
SmartCruise
®
option.
Required Tools
•
Basic Hand Tools
•
Data Link Tester
•
Digital Volt/Ohm Meter
•
Troubleshooting Guide
Possible Causes
This fault code can be caused by any of the following:
•
J-1939 Data Link
•
Engine ECU
•
Central Processing Unit
Terminating
resistor
J-1939/11 data link
(OEM supplied)
+
_
Shield
termination
Engine ECM
Terminating
resistor
EVT-300 COLLISION WARNING RADAR SYSTEM
Made in U.S.A.
UP
Eaton VORAD Collision Warning System
WARNING: READ DRIVER REFERENCE MANUAL PRIOR TO USE.
Model EVT-300, Forward Sensor Ferq. 24725 MHz
US Pantent Numbers 4,916,450; 5,181,038; 5,189,426; 5,280,288
Canadian Patent Numbers 1, 293,791 and other patents pending
1997 Eaton VORAD Technologies all rights reserved.
This device is sold under waiver of Canada and FCC Industry rules.
Any interference that may be caused should be reported to
your local FCC Feild Office or to the Federal Communications
Commission; Field Operations Bureau; 1919 W. St. NW;
Room 734, Mail Stop 1500; Washington, D.C. 20554-0001.
Manufactured by EATON VOARD Technologies, San Diego, California
FCC ID: I3LEVT300
"CANADA" 2035102915
EATONVORAD
T E C H N O I O G I E S
EATONVORAD
T E C H N O I O G I E S
Central
Processing Unit