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Hyundai transmission update

This bulletin provides a procedure to update the TCM for 2010-2011 Sante Fe 2.4L and 3.5L vehicles with automatic transmissions. This includes a DTC P0748 logic revision, 2-3 shift logic revision (3.5L) and logic revision to reduce a mild “bump” feeling in Park after engine start when the vehicle has been parked for several hours (3.5L).

ROM ID information table. Verify the TCM ROM ID before updating the vehicle’s software.
<p>ROM ID information table. Verify the TCM ROM ID before updating the vehicle’s software.</p>

Connect the USB cable between the GDS and the VCI. Connect the 16-pin DLC connector from the VCI into the DLC located under the driver’s side dash.

Note: Make sure the battery icon at the bottom right of the GDS laptop shows at least 50%. If not, charge the GDS or attached a battery charger.

Turn off all light (do not leave the headlight switch in auto mode) and all accessories to ensure the battery will not be discharged during the update.

Perform the update with the ignition key in the ON position.

Do not disconnect any cables connected to the vehicle or the GDS during the update.

Do not start the engine or turn the ignition switch OFF during the update.

Also note: Confirm that your GDS has the most recent version. If not, connect the GDS to an internet port, open the GDS home page and select “Update.” Refer to instructions on hmaservice.com if necessary. If you encounter GDS related problems, call the GIT Helpline at 888-437-0308.

Connect the USB cable between the GDS and the VCI.
<p>Connect the USB cable between the GDS and the VCI.</p>

GDS AUTO MODE TCM UPDATE PROCEDURE

1. From the GDS home page, select ECU Upgrade. If necessary, select the VIN.

2. Select AT as the system and then select OK.

3. Select Auto Mode and then select Next.

4. From the System tab, select AT and then select OK. The GDS will read the ROM ID. Confirm that the ROM is applicable.

5. Select update event #226 (CMA 3.5L) or #227 (CMA 2.4L). Select Upgrade.

6. If the screen indicates “Voltage is OK,” select OK. If not, select CANCEL and charge the vehicle battery by running the engine for 10 minutes.

7. Updating will occur until 100% is reached on the bar graph. At the prompt, turn the ignition key OFF for 10 seconds, then turn it ON and select OK.

8. The GDS will confirm that TCM reprogramming is successfully finished. Select OK.

9. If the TCM update was not successful, go to GDS MANUAL MODE TCM UPDATE PROCEDURE.

10. Check for any DTCs in the ESC menu and erase any DTC(s).

11. From the home screen, select Vehicle, AT menu and Option Treatment. Select Resetting Auto T/A and follow the prompts on the screen. This step is necessary to ensure a smooth shift.

12. Start the engine to confirm proper operation.

GDS MANUAL MODE TCM UPDATE PROCEDURE

The manual update should be performed only when the automatic update fails. If the manual update fails, disconnect the PCM connectors for 10 minutes and retry the manual update.

1. From the GDS home page, select ECU Upgrade. If necessary, select the VIN.

2. Select AT as the system and then select OK.

3. Select Manual Mode and then select Next.

4. From the System tab, select AT and then select OK.

5. Select update event $226 (CMA 3.5L) or #227 (CMA 2.4L) or any later (higher) event number that shows in the GDS list. Select Upgrade.

6. Enter the appropriate password shown below and select OK.

MODEL           UPDATE                  MENU                                             PASSWORD

CMA 3.5L         #226          CMA 3.5 TCM: 39109-3C510/3C560              3560

CMA 2.4L         #227          CMA 2.4 TCM: 39104-2G331/2G341              2341

7. If the screen indicates “Voltage is OK,” select OK. If not, select CANCEL and charge the vehicle battery by running the engine for 10 minutes.

8. The remaining steps are the same as Steps 7-12 of the Auto Procedure.

Tags: Hyundai  Transmission 
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