Diagnosis system for a motor vehicle

Details Diagnosis system for a motor vehicle Diagnosis system for a motor vehicle

1989-02-21

1991-04-02

Gruber, Felix D.

Boots, shoes, and leggings

731172, 36443101, 36455101, G01M 1500, F02D 4126, F02P 1700

Patent

active

050051296

ABSTRACT:
A system for diagnosing a motor vehicle has a diagnosis device including a computer having a central processing unit and a ROM. The ROM stores a plurality of programs for diagnosing an electronic control system for controlling an engine. The electronic control system has a self-diagnosis function and a nonvolatile memory for storing trouble data as a result of the self-dignosis. A communication system is provided in the diagnosis device for supplying a trouble check signal to the electronic control system. In response to the trouble check signal, the electronic control system derives the trouble data from the nonvolatile memory and sends the trouble data to the diagnosis device.

REFERENCES:
patent: 4527424 (1985-07-01), Takahashi
patent: 4694408 (1987-09-01), Zaleski
patent: 4748843 (1988-06-01), Schafer et al.
patent: 4757463 (1988-07-01), Ballou et al.
patent: 4926330 (1990-05-01), Abe et al.

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