Transaxle Control Module (TCM)
WARNING: This page is about a different car, the 2006 Mercury Mariner and 2006 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.
The microprocessor that controls operation of the electronically controlled continuously variable transaxle (CVT) is called the TCM. The TCM receives a variety of CAN messages and hardwired signals from modules connected to the CAN network. Based on information received, the TCM makes a decision on how to control the operation of the generator motor or the traction motor. In case of a malfunction the TCM is able to detect and store the appropriate diagnostic trouble code (DTC). To retrieve DTCs from the TCM, an on-demand and continuous memory self-test must be carried out.
NOTE:
The TCM is a part of the electronically controlled CVT assembly and cannot be repaired as a separate component. Refer to AUTOMATIC TRANSAXLE/TRANSMISSION - ELECTRONICALLY CONTROLLED CONTINUOUSLY VARIABLE TRANSMISSION (ECVT)
for CVT repair procedures.