Where is the TCM located?

It looks like the TCM is up by the radiator on the frame rail on the driver's side. Here are the location and instructions on how to replace it in case you need it. Check out the images below.

Transmission Control Module Programming and Setup

1. 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.

2. Program the TCM using the latest software matching the vehicle. Refer to up-to-date Techline equipment user instructions.
3. If the TCM fails to program, proceed as follows:

1. Ensure that the TCM connection is OK.
2. Inspect the Techline equipment for the latest software version.
3. Attempt to program the TCM. If the TCM still cannot be programmed properly, replace the TCM.

Check out the images (below). Please let us know if you need anything else to get the problem fixed.