Transmission Control Module

The TCM receives information from various input devices and uses this information to control shift and lock-up control solenoid valves. The TCM contains self-diagnostic system which stores fault code if failure or problem exists in transaxle electronic control system. Fault code may also be referred to as Diagnostic Trouble Code (DTC). DTC may be retrieved to determine transaxle problem area. See DIAGNOSIS & TESTING . The TCM is mounted to firewall, next to steering column.