System and method for determining a code used in can bus messages

A system for determining codes of vehicle's Can-bus dashboard messages, each message being associated with a dashboard notification, comprising: (a) a message generator sequentially generating on the Can-bus different message codes selected from a reduced space from the Message-ID and the Data fields; (b) a message storage for storing each generated message code, together with its timestamp; (c) a camera capturing an image of the dashboard, in synchronization with each message generation; (d) an images storage storing images captured by the camera, each image with its respective timestamp; (e) a processor configured to (i) compare each captured image with a latest previously captured image within the storage; (ii) when a difference is found between any captured image and a latest previously captured image, and based on the image timestamp, associate the later captured image with the code of the respective generated message in said message storage having the same timestamp.