Diagnostic method for motor vehicles for checking electronically controlled systems

  • US 5,757,645 A
  • Filed: 11/22/1995
  • Issued: 05/26/1998
  • Est. Priority Date: 06/18/1993
  • Status: Expired due to Fees
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First Claim
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1. Diagnostic method for motor vehicles, said method using a diagnostic device to check electronically controlled systems and to store prescribed test steps for diagnosing faults, said motor vehicle having an on-board electronic control device with a fault memory and with an actual test step memory, the method comprising the steps of:

  • using the diagnostic device to interrogate the fault memory provided in the electronic control device to determine a recorded fault; and

    at least partially recording test steps actually performed in accordance with the prescribed test steps which correspond to the recorded fault, in the actual test step memory.

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