Fault isolation for vehicle using a multifunction test probe

Details Fault isolation for vehicle using a multifunction test probe Fault isolation for vehicle using a multifunction test probe

1986-06-02

1988-07-12

Lall, Parshotam S.

Boots, shoes, and leggings

364424, 36443101, 36443111, 731172, G06F 1574

Patent

active

047574631

ABSTRACT:
In a computerized automotive vehicle diagnostic system, a test probe cable is attached to individual components and consists of a multiple conductor cable which is attached ultimately to the component and to a computer in a technician terminal. Where the probe cable enters the technician terminal the conductors contained within it are fed into a programmable crosspoint switch which is controlled by a microcontroller. Test functions are provided by three programmable resources: (1) A program controlled multimeter, (2) A program controlled DC voltage source and ground sink; and (3) the microcontroller itself which receives and interprets commands from the computer and controls the various probe elements based upon the test commands received.

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