Patent Number: 
Section: claims

1. An off-board tool (OBT) comprising a processor and in circuit communication with:a) vehicle communication circuitry for linking to a vehicle diagnostic system and obtaining vehicle identification information;b) an optical scanner for optically obtaining vehicle information including a vehicle identification number (VIN);c) memory; andd) an output device;wherein the memory comprises logic for causing the OBT to link with the vehicle diagnostic system, logic for retrieving diagnostic data from the vehicle diagnostic system and logic for causing the optical scanner to optically obtain vehicle information. 2. The OBT of claim 1 wherein the output device comprises a display located on the OBT. 3. The OBT of claim 1 wherein the vehicle information is one of a numeric code, an alphabetic code, an alphanumeric code or a bar code. 4. The OBT of claim 3 further comprising logic for optical character recognition. 5. The OBT of claim 1 wherein the optical scanner comprises a bar code scanner. 6. The OBT of claim 1 wherein the optical scanner comprises a camera sensor. 7. The OBT of claim 1 wherein the optical scanner comprises a laser sensor. 8. The OBT of claim 1 wherein the optical scanner is an integral part of the OBT. 9. The OBT of claim 1 wherein the optical scanner further comprises its own housing. 10. The OBT of claim 1 wherein the optical scanner comprises at least one light source and at least one light sensor. 11. The OBT of claim 10 wherein the at least one light source is a light emitting diode. 12. The OBT of claim 10 wherein the at least one light sensor is a light sensing diode. 13. The OBT of claim 1 further comprising wireless communication circuitry. 14. The OBT of claim 13 further comprising a remote unit and a vehicle interface unit. 15. The OBT of claim 14 wherein the vehicle interface unit is connectable to the vehicle diagnostic system. 16. The OBT of claim 14 wherein the vehicle interface unit is permanently attached to the vehicle diagnostic system. 17. An automotive diagnostic tool comprising:a) a processor;b) means for retrieving at least one bit of data from a vehicle diagnostic system including vehicle identification information;c) means for optically obtaining at least one piece of vehicle specific information including a vehicle identification number (VIN); andd) memory;wherein the processor, the means for retrieving at least one bit of data from a vehicle diagnostic system, the means for optically obtaining at least one piece of vehicle specific information and the memory are in circuit communication with one another. 18. The scan tool of claim 17 wherein the means for retrieving at least one bit of data from a vehicle diagnostic system comprises logic for establishing a communications protocol with the vehicle diagnostic system. 19. The scan tool of claim 18 wherein the means for retrieving at least one bit of data from a vehicle diagnostic system further comprises logic for requesting data indicative of the vehicle emissions. 20. The scan tool of claim 17 wherein the means for optically obtaining at least one piece of vehicle specific information comprises logic for optical character recognition. 21. The scan tool of claim 17 wherein the means for optically obtaining at least one piece of vehicle specific information comprises logic for reading a bar code. 22. The scan tool of claim 17 wherein the means for optically obtaining at least one piece of vehicle specific information comprises a camera. 23. A method of performing a test on a vehicle having a vehicle diagnostic system comprising:optically scanning vehicle information including a vehicle identification number using an off-board tool (OBT);establishing circuit communication between the OBT and the vehicle diagnostic system;requesting at least one bit of data from the vehicle diagnostic system;receiving the at least one bit of data from the vehicle diagnostic system regarding identification of the vehicle;providing an output as a function of the at least one bit of data; andproviding an output as a function of the optically scanned vehicle information obtained. 24. The method of claim 23 wherein optically scanning vehicle information using an OBT comprises optically scanning the vehicle identification number. 25. The method of claim 23 wherein optically scanning vehicle information using an OBT comprises optically scanning a bar code. 26. The method of claim 23 wherein optically scanning vehicle information using an OBT comprises optically scanning vehicle specific information with a modular component of the scan tool. 27. The method of claim 23 wherein optically scanning vehicle information using an OBT comprises optically scanning vehicle specific information with a integrated component of the scan tool. 28. The method of claim 23 wherein optically scanning vehicle information using an OBT comprises optically scanning vehicle specific information with a camera. 29. A method of performing a test on a vehicle having a vehicle diagnostic system comprising:optically scanning vehicle information using an off-board tool (OBT);establishing circuit communication between the OBT and the vehicle diagnostic system;requesting at least one bit of data from the vehicle diagnostic system;receiving the at least one bit of data from the vehicle diagnostic system;providing an output as a function of the at least one bit of data;providing an output as a function of the optically scanned vehicle information obtained,wherein optically scanning vehicle information using an OBT comprises optically scanning vehicle specific information with a camera, andstoring an image of the malfunction indication light. 30. A method of performing a test on a vehicle having a vehicle diagnostic system comprising:optically scanning vehicle information using an off-board tool (OBT);establishing circuit communication between the OBT and the vehicle diagnostic system;requesting at least one bit of data from the vehicle diagnostic system;receiving the at least one bit of data from the vehicle diagnostic system;providing an output as a function of the at least one bit of data;providing an output as a function of the optically scanned vehicle information obtained,wherein optically scanning vehicle information using an OBT comprises optically scanning vehicle specific information with a camera, andstoring an image of a part that has been tampered with. 31. A method of performing a test on a vehicle having a vehicle diagnostic system comprising:optically scanning vehicle information using an off-board tool (OBT);establishing circuit communication between the OBT and the vehicle diagnostic system;requesting at least one bit of data from the vehicle diagnostic system;receiving the at least one bit of data from the vehicle diagnostic system;providing an output as a function of the at least one bit of data;providing an output as a function of the optically scanned vehicle information obtained,wherein optically scanning vehicle information using an OBT comprises optically scanning vehicle specific information with a camera, and obtaining an image of a part that is difficult to see.