Network

These are special codes to identify vehicle faults related to the transfer of data from one module to another. Connectivity networks deteriorate and leave entire systems outside the mechanism. The other modules then create a code concerning that system. It is usually reflected by the letter U, preceded by a digit, which may well indicate whether the failure is generic or if it is within the manufacturer’s system. If this is the case, it means that the manufacturer has prepared a specific solution for the fault. There are different ways to identify the source of the fault, for example, codes U0000 to U1000 and U3000 to U4000 are generic in nature. But, between the range of U1000 and U3000, they are from the manufacturer, depending on the make of the car.