Diagnosis system for motor vehicle

Details Diagnosis system for motor vehicle Diagnosis system for motor vehicle

1989-10-18

1991-10-08

Chin, Gary

Boots, shoes, and leggings

36443101, 731173, 340439, G01M 1500, G06F 1520

Patent

active

050560239

ABSTRACT:
There is disclosed a diagnosis system for a motor vehicle, and comprising a plurality of and various electronic control units mounted on the vehicle, and a diagnosis unit connected to the control units and for diagnosing troubles occurring in the several control units. The system further comprises a plurality of communication circuits provided in the diagnosis unit corresponding to every communication systems of the control units, a communication bus provided to connect the control units in parallel to the diagnosis unit, and one external connector for connecting the bus to the diagnosis unit. Accordingly, it is possible for the system to respond to every trouble of the control unit despite different communication systems, without changing connectors, and providing a plurality of communication buses.

REFERENCES:
patent: 4894781 (1990-01-01), Sato et al.
patent: 4899338 (1990-02-01), Wroblewski
patent: 4924391 (1990-05-01), Hirano et al.

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