TCM Programming Procedures
- The transmission control module (TCM) must be programmed with the proper software/calibrations. Ensure that the following conditions exist in order to prepare for TCM programming:
- The battery is fully charged.
- The ignition switch is in the RUN position.
- The Techline equipment cable connection at the data link connector (DLC) is secure.
- Program the TCM using the latest software matching the vehicle. Refer to up-to-data Techline equipment user instructions.
- If the TCM fails to program, proceed as follows:
- Ensure that the TCM connection is OK.
- Inspect the Techline equipment for the latest software version.
- Attempt to program the TCM. If the TCM still cannot be programmed properly, replace the TCM.