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Method for evaluation of the self-diagnosis of a controller in a motor vehicle

  • US 5,670,939 A
  • Filed: 05/24/1995
  • Issued: 09/23/1997
  • Est. Priority Date: 05/24/1994
  • Status: Expired due to Fees
First Claim
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1. Method for evaluating operability of a self-diagnostic system of a control unit in a motor vehicle, said control unit having a control panel with a push-button switch with automatic return, further positionable input elements, and a signal element for emitting a flashing code, said method comprising the steps of:

  • dividing types of faults which can be diagnosed into fault classes, each type of fault being assigned a fault number within a fault class;

    an operator selecting a fault class by setting said positionable input elements to a predetermined position combination associated therewith;

    said operator operating said push-button switch while said positionable elements are in said predetermined position combination; and

    said signal element emitting flashing code signals concerning status of the types of faults included in the selected fault classes.

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