Abstract: A method and system of diagnosing and/or programming a vehicle with a vehicle interface device that is configured to operate on a predetermined use basis. The vehicle interface device is operatively connected with one or more electronic control units of a vehicle via a diagnostic port of the vehicle. The interface device is enabled to be operable to diagnose and/or program a vehicle for a predetermined use, such as by receiving an activation signal. The vehicle interface device is subsequently disabled from operating to diagnose and/or program a vehicle upon the vehicle interface device operating for the predetermined use.

Abstract: A device for sending and receiving messages between an electronic control unit of a vehicle and an external device includes a processor, a memory, a first port, and a second port. The memory, first port, and second port are each in communication with the processor. The first port is configures to communicate with the electronic control unit of a vehicle, while the second port is configured to communicate with the external device. The processor is configured to receive a request message from the external device via the second port, transmit the request message to the electronic control unit of the vehicle; receive requested information from the electronic control unit of the vehicle based on the request message, and determine an information subset in the requested information that should be transmitted to the external device; and transmitting the information subset to the external device.

Abstract: The system for sending and receiving messages from an electronic control unit of the vehicle includes a processor, a database, and a port in communication with the processor. The database contains information as to the emissions of the vehicle and the port is configured to communicate with the electronic control unit of the vehicle. The processor is configured to receive information from the electronic control unit of the vehicle, compare the information from the electronic control unit of the vehicle with information found in the database. By so doing, the processor can determine if the information from the electronic control unit of the vehicle does not match the information in the database. If this is the case, the system can provide an indication to the user of the system that the vehicle may have been tampered with and any emissions related testing may be incorrect.

Abstract: A device for sending and receiving messages between an electronic control unit of a vehicle and an external device includes a processor, a memory, a first port, and a second port. The memory, first port, and second port are each in communication with the processor. The first port is configures to communicate with the electronic control unit of a vehicle, while the second port is configured to communicate with the external device. The processor is configured to receive a request message from the external device via the second port, transmit the request message to the electronic control unit of the vehicle; receive requested information from the electronic control unit of the vehicle based on the request message, and determine an information subset in the requested information that should be transmitted to the external device; and transmitting the information subset to the external device.