Systems and methods for resetting vehicle emission system error indicators

• US 20060247843A1
• Filed: 12/28/2005
• Published: 11/02/2006
• Est. Priority Date: 01/17/2003
• Status: Active Grant

• Current Assignee: PH2 Solutions, Inc.
• Original Assignee: PH2 Solutions, Inc.
• Inventors: Lewis, Marshall J. Jr.
• Granted Patent: US 7,231,292 B2
• Time in Patent Office: Days
• US Class Current: 701/114
• CPC Class Codes: F02D 41/1495 Detection of abnormalities in the air/fuel ratio feedback system
• CPC Class Codes: F02D 41/222 relating to the failure of sensors or parameter detection devices

Abstract

A method of resetting an active emissions system error indicator associated with a vehicle. The method comprises performing at least a first requesting step, where the requesting step is performed indirectly by using a record mode function until said active e emissions system error indicator resets in response to the requesting step. In one embodiment an additional step comprises the additional step of performing at least a second requesting step for a second type of information, the second requesting step performed either manually or by the record mode function. In a particular embodiment of the invention, an electronic tool, such as a bi-directional scan tool, is used to perform the firsgt and second requesting steps.

Claims

1. The method of resetting an active emissions system error indicator associated with a vehicle, said method comprising performing at least a first requesting step, wherein said at least first requesting step is performed indirectly by using a record mode function until said active emissions system error indicator resets in response to said at least first requesting step.

2. The method of claim 1 comprising the additional step of performing at least a second requesting step for a second type of information, said second requesting step performed either manually or by said record mode function.

3. A method of resetting one or more active emission system indicators associated with a vehicle, said method comprising the steps of:

placing said vehicle on a dynamometer; and

while vehicle is on said dynamometer, requesting indirectly by a record mode function at least one type of information from a computer within said vehicle until at least one of said emission system error indicators resets.

4. The method of claim 3, comprising the additional step of requesting a second type of information, said second requesting step performed either manually or by said record mode function.