Vehicle diagnosis system having transponder for OBD III
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United States of America Patent
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May 1, 2001
Grant Date -
N/A
app pub date -
May 3, 1999
filing date -
May 13, 1998
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Abstract
A vehicle diagnosis system can handle with OBD III as well as OBD II by only adding a transponder to an OBD II system. The vehicle diagnosis system includes an engine ECU for controlling an engine device such as injector and storing a diagnosis data, a K-line connected to the engine ECU, a transponder connected to the K-line, and a connector connected to the K-line for detachably connecting an external scan tool that reads the diagnosis data stored in the engine ECU. The transponder receives a request from a receiver system by radio, reads the diagnosis based on the request, and sends the read diagnosis data to the receiver system.
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