Method of detecting vehicle speed sensor failure

Details Method of detecting vehicle speed sensor failure Method of detecting vehicle speed sensor failure

2007-10-23

2007-10-23

Zanelli, Michael J. (Department: 3661)

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

Vehicle diagnosis or maintenance indication

C340S438000

Reexamination Certificate

active

11121829

ABSTRACT:
A method of detecting vehicle speed sensor failures is disclosed. The method is intended to prevent or discourage tampering with a vehicle's speed limiting system. The method includes the steps of determining whether the transmission is in neutral or whether the transmission is in its converter mode to prevent false indications of speed sensor failure under certain circumstances.

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