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Dynamic service tool for an engine control module

  • US 6,466,861 B2
  • Filed: 02/20/2001
  • Issued: 10/15/2002
  • Est. Priority Date: 02/20/2001
  • Status: Active Grant
First Claim
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1. A method for modifying an engine control module (ECM) having a plurality of calibratable or upgradable software features, comprising the steps of:

  • assigning a globally unique identifier (GUID) to software features of the ECM;

    providing a calibration tool that maintains information for calibrating/upgrading certain of the software features;

    maintaining, within the ECM, a table of GUIDs for software features stored within the ECM;

    maintaining, within the calibration tool, a table of GUIDs for software features for which the tool has associated calibration or upgrade information;

    comparing GUIDs in the ECM table with GUIDs in the calibration tool table; and

    providing the associated calibration or upgrade information to the ECM if a match occurs.

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