What is a VCM?

Vehicle Control Module (VCM)

In this context we use the term Vehicle Control Module (VCM) to mean the control module that is primarily responsible for engine and transmission operation. In some vehicles there is actually two modules, an Engine Control Module (ECM) and a Transmission Control Module (TCM). In general, the number of modules required to be read or written will be transparent to the end user or become obvious during the reading/writing process.

Generally, vehicles contain may other modules that control different aspects of the vehicles operation. At this time VCM Suite does not allow modification of any of these other modules. Some examples are: