Vehicle diagnosis routing method, device and system, vehicle and storage medium

The embodiment of the invention provides a vehicle diagnosis routing method, device and system, a vehicle and a storage medium, and relates to the technical field of diagnosis communication. The method comprises the following steps: when a diagnosis request message sent by a client is received, a node between the client and a diagnosed node forwards the diagnosis request message; and if the diagnosis response of the next-level node is not received within the first timing duration, sending a message requesting the client to wait to the upper-level node so as to notify the client to wait until a preset condition is met. Therefore, routing diagnosis and response timeout can be avoided, communication diagnosis failure is avoided, and the communication diagnosis success rate can be improved. 本申请实施例提供一种车辆诊断路由方法、装置、系统、车辆及存储介质，涉及诊断通讯技术领域。该方法在接收到客户端发送的诊断请求报文时，客户端和被诊断节点之间的节点转发诊断请求报文；若在第一计时时长内没有接收到下一级节点的诊断应答，向上一级节点发送请求客户端等待的报文，以通知客户端进行等待，直到满足预设条件。从而可以避免诊断路由及响应超时，避免诊断通讯失败，进而可以提升诊断通讯成功率。