Transmission Control Module (TCM) - 6-Speed Transaxle
WARNING: This page is about a different car, the 2006 Mercury Milan, 2006 Lincoln Zephyr, and 2006 Ford Fusion. However, it is still accessible from the selected car via links, so may be relevant.
The TCM (if equipped) uses the high speed CAN for communication with the diagnostic tool and other modules on the high speed CAN. The TCM controls transaxle shifting, the electronic pressure control solenoid, and the torque converter clutch.
Check the high speed CAN circuits between the TCM C1533 and the DLC C251. The total resistance values must not be more than 5 ohms. If the resistance is more than 5 ohms, there is an open circuit in the high speed CAN, damage to the DLC C251, damage to the TCM C1533, or a problem in the in-line connector.
For additional TCM - 6-speed transaxle information, refer to AUTOMATIC TRANSMISSION - 6 SPEED .