Automotive vehicle electrical system diagnostic device

  • US 20030038637A1
  • Filed: 07/19/2002
  • Published: 02/27/2003
  • Est. Priority Date: 11/03/1997
  • Status: Active Grant
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First Claim
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1. An automotive vehicle electrical system diagnostic apparatus, comprising:

  • a first electrical terminal configured to electrically couple to a first terminal of a battery of an automotive vehicle;

    a second electrical terminal configured to electrically couple to electrical wiring of the automotive vehicle, the first and second electrical terminals configured to connect in series with the battery and the electrical system of the automotive vehicle;

    a low resistance electrical path between the first and second electrical terminals configured to carry an electrical current to operate the vehicle therethrough;

    digital sample circuitry coupled to the low resistance electrical path configured to provide a plurality of digital samples during operation of the vehicle which are related to the electrical current flowing through the low resistance electrical path; and

    a memory configured to store the plurality of digital samples.

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