A customer driven process of diagnosing and repairing a vehicle. The process involves temporarily providing a customer with a diagnostic tool that can receive vehicle diagnostic signals from a vehicle on-board computer. The customer then uses the tool to upload diagnostic signals from the car, and returns the tool to the automotive parts/service facility. The vehicle diagnostic signals are communicated to a console, which then accesses a database(s). The database(s) includes information relating to the vehicle malfunction, the repairs needed, and the parts required to complete those repairs. The process also allows automatic scheduling of repairs and purchasing of parts from the automotive parts/service facility. Upon payment of any prescribed fees, the process outputs report information to the customer.