Data processing: vehicles – navigation – and relative location – Vehicle control – guidance – operation – or indication – Vehicle diagnosis or maintenance indication
Reexamination Certificate
2006-03-27
2010-02-16
Zanelli, Michael J. (Department: 3661)
Data processing: vehicles, navigation, and relative location
Vehicle control, guidance, operation, or indication
Vehicle diagnosis or maintenance indication
C701S033000
Reexamination Certificate
active
07664579
ABSTRACT:
A diagnostic test interface circuit and method for using the same are disclosed. The circuit isolates communication links at a junction box having one pin for each of the communication links. The circuit includes a bus, a plurality of switches, and a plurality of connection leads. The switches each have a first terminal connected to the bus. Each connection lead includes a first end having a connector that connects to one of the pins and a second end that connects to a corresponding one of the switches such that the switch connects the connection lead to the bus when the switch is closed. The circuit can be used to diagnose a fault in a vehicle having a plurality of modules that communicate over a star-configured network.
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Ward Calvin B.
Zanelli Michael J.
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