A ECM is an engine control module and this is considered to be the brain of your car. Usually, when issues arise it is likely that a large portion of the problem can be traced to the fact that it contains elements from both the mechanical and technological elements. It is possible for things to be faulty with respect to more than one aspect. There are several ways to tell whether your vehicle’s ECM is having issues or issue. First of all, if the check engine lights come up, it means that something is realy wrong with your engine or something is wrong in its brain. This is also the ECM. The car may not begin if the ECM is faulty. If your ECM has a problem, it will not be able to communicate with the engine in order to instruct it that it needs to spin. While other factors can create this problem, it is possible that the ECM may be the culprit. The other reason could be the engine is misfiring. It could be because of the ECM not conveying information to the engine and the timing not being correct. xy48gbw6zd.