Procedure 2 - First Time TCM RE-Flash

PROCEDURE 2: FIRST TIME TCM RE-FLASH:





The figure shown identifies the TCM Flash Kit components.

1. Completely "Shut Down" the PC.

2. Turn the Reflash Cube "OFF".





3. Connect RS-232C cable to the Serial port (often identified with IOIOI) on the back of the PC. Use the figures shown for the type of PC you have (due to the many different PC configurations, your PC may not match these figures exactly).

4. Connect the Reflash Cube 110 volt power supply cable.

5. Ensure the Reflash Cube is "OFF", then turn the PC "ON".





6. Find the folder on the desktop called "reflash" and open it.





7. Open the program called "Flash32r.exe".





NOTE:
If you receive the error shown or one similar to it, click "OK" and proceed to the next step. The program will continue to function. When the correct COM port is selected during the reflash procedure, this error will not come up again.





8. Select the "Write program" button.





9. Select the program file "FLASH04.BIN", then select "Open".





10. Select the "ROM file" button.





11. Select the program file "FHEAF46.xho", then select "Open".





12. Change "End" to "7FFFF".

13. Select the correct Com port for your type of PC from the drop down menu:





- For Compaq PCs select "Com4"





- For Dell PCs select "Com1"

NOTE:
If you receive an error message for every corn port (Com1, Com2, Com3, or Com4), shut off the reflash cube and shut down the PC. Make sure the reflash cube is plugged in securely (or if there are 2 serial ports, try plugging into the other one) and restart the PC and try again. If all the com ports still give an error message, there may be a hardware configuration problem with the PC. Have a computer specialist inspect and repair the PC. Try to perform the procedure using another PC.





NOTE:
If you receive the error shown or one similar to it, click "OK" and proceed to the next step. The program will continue to function. When the correct COM port is selected during the reflash procedure, this error will not come up again.





14. IMPORTANT: Verify the settings shown.





15. Connect the two (2) Reflash Cube connectors to the Transmission Control Module (TCM).

NOTE:
THE SUCCESS OF THE REFLASH PROCEDURE WILL DEPEND ON FOLLOWING STEPS 16-22 EXACTLY.

16. Ensure the Reflash Cube is still in the "OFF" position.

17. Switch the Reflash Cube to the "ON" position.

18. Wait 1-second, then select the "Connect" button within 10-seconds.

NOTE:
If you click the "Connect" button too fast or too slow, you may not establish communication.





19. After selecting "Connect":





NOTE:
If the message "Writing program forwarding failure" is displayed in RED text, turn the Reflash Cube "OFF" and repeat Step 16.





20. After selecting "Write".





21. After selecting "Verify".





22. Turn Reflash Cube "OFF".





23. Select "End".

24. Disconnect the TCM.

25. Using a permanent marker, write the letter "N" and the "Date of Reflash" near the part number found on the TCM to identify the new software calibration level.





26. Click the "right" mouse button on an open area of the desktop.





27. Select "Properties" from the drop down menu.





28. Select "Screen Saver" tab.

29. The TCM Reflash is now complete.

30. Return to the Service Bulletin "REPAIR PROCEDURE" section and complete Steps 8 - 16 before returning the vehicle to the customer.