What's the Mazda CX 7 fault code u0442?

When You have a fault code in Your Mazda CX7 the first thing You should do is stop driving as soon as possible. If You drive with a fault code You are risking damage to Your vehicle since it has found a problem with one of the crucial components. When You have stopped You can use an OBD II scan tool on Your car to determine what is wrong. If You have a code U0442 that means that there is a problem detected with the ECM. Usually this means that Your vehicle's ECM has not gotten the right information and has a communication error. This can be caused by software problems or by bad wiring that may need to be replaced.