Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Transmission Control Module (TCM) Replacement
If the TCM is replaced, the following procedures must be performed:
Use a scan tool to view and record the Transmission Control Module - End Model Part Number in the original TCM prior to starting the TCM reprogramming procedure.
If you are unable to communicate with the TCM during step 1 and do not have a CD-ROM containing characterization data for this transmission. Take a picture of the QR Code label and send to TCSC. TCSC will retrieve the data from the label and send back the information needed for Transmission Control Module-Configuration.
Transmission/Transmission Control Module (TCM) Replacement
| Callout | Component Name |
|---|---|
| 1 | Serial Number |
| 2 | QR Code |
- Using a Scan Tool, access the Service Programming System (SPS) and follow the on-screen instructions.
- Before removing the old control module, perform the SPS function, Prepare Control Module for Removal, if available.NOTE:
The Prepare Control Module for Removal function can only be performed when communication with the old control module is still possible.
- Replace the TCM.
- Perform the SPS function K71 Transmission Control Module-Programming and follow the on-screen instructions.
- Clear the DTC's after completing the Programming procedure.NOTE:
When prompted select the file from Prepare Control Module for Removal step.
- Perform the SPS function K71 Transmission Control Module-Configuration and follow the on-screen instructions.
- Clear DTC's after completing the Configuration & Setup procedure.
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.