Reprogram Control Module

To program an existing K71 Transmission Control Module, perform the following procedure.

1. Install EL-49642  SPS programming support tool.
2. Access the Service Programming System (SPS) and follow the on-screen instructions.
3. 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.
4. Perform the Vehicle Setup, follow the on screen instructions.
5. With a scan tool, clear DTCs from the K71 Transmission Control Module.
6. Ignition OFF, allow vehicle systems to power down.
   NOTE:

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

7. Perform the Service Fast Learn (SFL), 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.

8. Ignition OFF for 2 minutes.