Replace and Program Control Module

To program a replacement K71 Transmission Control Module (TCM), perform the following procedure:

1. Replace the K71 Transmission Control Module.
2. Install EL-49642  SPS programming support tool
3. Access the Service Programming System (SPS) and follow the on-screen instructions.
4. Perform one of the following SPS Programming functions:
   NOTE:

   If both controller options below are listed, select K71 Transmission Control Module

   • K20/K71 Engine and Transmission Control Modules and follow the on-screen instructions
   • K71 Transmission Control Module and follow on-screen instructions.
5. Perform the Refresh Characterization Data at the MCVM Characterization procedure, follow the on-screen instructions.
6. Perform the Vehicle Setup, follow the on screen instructions.
7. With a scan tool, clear DTCs from the K71 Transmission Control Module.
8. Ignition OFF, allow vehicle systems to power down.
   NOTE:

   If may take up to 2 minutes for all vehicle systems to power down.

9. Perform the Transmission Adaptive Pressure Reset. Follow the on-screen instructions.
   NOTE:

   If the transmission fluid temperature is not between 75 to 85°C (167 to 185°F) the scan tool will not allow the procedure to be performed.

10. Ignition OFF for 2 minutes.
11. All OK.