Abstract: A remote diagnostic system and method based on device data classification. Device diagnostic data with respect to a device can be acquired and a conditional probability look up table can be constructed for each fault code associated with the device diagnostic data by a classification module. A score function can then be created by summing the conditional probabilities and an occurrence of the fault code can be mapped to a service call category with a numerically highest score function. The fault occurrence data in association with a number of time stamps and device identifiers can be stored in a data warehouse. The occurrence of fault code can be matched with respect to a solution set which can be automatically dispatched to a customer via a communications link.