The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
May. 23, 2000

Filed:

Feb. 21, 1995
Applicant:
Inventor:

James R Paye, Farmington Hills, MI (US);

Assignee:

Automotive Systems Laboratory, Inc., Farmington Hills, MI (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02H / ;
U.S. Cl.
CPC ...
714 45 ; 714 31 ; 714 47 ; 714 57 ;
Abstract

A diagnostic method (100) with pre-assembly fault recording lock-out inhibits fault recording during assembly of a main system until the system has been determined operation at least once (116). The method will still note the detection of system failures/errors (112) by activating a warning lamp (120), but will not record these faults into memory until the system has determined that the main system has been powered up without any errors at least once (118 and 122). Thus, since these faults are not stored in memory during manufacture/assembly, the method of the present invention obviates the need for any additional assembly step(s) of erasing and/or clearing the memory, or externally controlled recording inputs for the diagnostic system.


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