Engine, A/T Controls - Vibration/Booming At 38-42 MPH
Group: AUTOMATIC TRANSMISSIONNumber: 08-AT-004
Date: MAY, 2008
Model: 2008 SONATA 2.4L (NFA)
Subject:
ECM & TCM UPDATE - VIBRATION, SHUDDER OR BOOM NOISE AT 38-42 MPH
DESCRIPTION:
Some Sonata 2.4L vehicles with automatic transaxles may experience a vibration, shudder or booming noise at 38-42 mph in 4th gear. If so, follow the procedure to update the ECM and TCM.
APPLICABLE VEHICLES:
Model: 2008 Sonata 2.4L (NFA) vehicles with automatic transaxles
Applicable vehicle production date range: From February 8, 2007 to October 4, 2007.
Verify the version of the ECM and TCM ROM ID before attempting to update the vehicles' software. Refer to the ROM ID Information Table.
ROM ID INFORMATION TABLE:
SERVICE PROCEDURE:
^ Turn off all lights (Do not leave the headlight switch in auto mode) and all accessories (including heater/air conditioner/blower, radio, heated seats, rear defroster, etc.) to make certain the battery will not be discharged during reprogramming.
^ Perform reprogramming with the ignition key in the ON position.
^ Be careful not to disconnect any cables connected to the vehicle or the GDS during reprogramming.
^ Do not start the engine or turn the ignition switch OFF during reprogramming.
INTERNET UPDATE
Confirm your GDS has Local Version 1.44 or higher. If not, connect the GDS to an internet port, open the GDS home page and select "Internet Update". See the instructions on the website, if necessary.
GDS INSTALLATION PROCEDURE
WARNING:
Make sure that the battery symbol indicator at the bottom right tray of the GDS laptop shows at least 25%; if not, charge the GDS.
1. Connect the USB cable (A) between the GDS and the VCI.
NOTE:
The USB cable is necessary because wireless communication is not available for the update.
2. Connect the 16-pin DLC connector from the VCI into the DLC located under the driver's side dash.
3. Turn the ignition key on and the VCI on.
ECM UPDATE PROCEDURE
1-1. AUTOMATIC ECM UPDATE PROCEDURE USING GDS
1. At the GDS main screen, select ECU Upgrade.
2. Select the vehicle information and ENGINE as the system and then click OK.
3. Select "Auto Mode" and "ENGINE" under the ECU Upgrade column on the left and click OK. The GDS will read the ROM ID.
4. Confirm the current ROM ID is correct as shown. Select upgrade event 105. NFA 2.4 BOOMING NOISE - ECM and click on the Upgrade button.
5. To begin the update, click OK.
6. If the screen indicates "Voltage is OK", select OK. If not, select CANCEL and charge the GDS battery.
7. The progress bar will indicate when reprogramming reaches 100%. Wait until the next screen indicates reprogramming is complete.
8. The GDS will confirm that ECU reprogramming is successfully finished. Click OK. If not successful, go to MANUAL ECM UPDATE PROCEDURE.
9. Go to "AUTOMATIC TCM UPDATE PROCEDURE".
1-2. MANUAL ECM UPDATE PROCEDURE:
CAUTION:
^ The manual update should be performed only when the automatic upgrade fails.
^ If automatic update fails, turn the ignition key OFF for about 10 seconds and place it back in the ON position to reset the ECM.
1. From the GDS home screen, select ECU Upgrade.
2. Enter the vehicle information and "ENGINE", then click OK.
3. From the ECU Upgrade window on the left, select Manual Mode and ENGINE. Select "Upgrade Event # 105" and "NF 2.4 NAS: 39100-25135" and click OK.
4. Enter "5135" as the password for manual update and click OK.
5. If the results indicate "Voltage is OK", select OK. If not, select CANCEL and charge the GDS battery.
6. The progress bar will indicate when reprogramming reaches 100%. Wait until the next screen indicates reprogramming is complete.
7. The GDS will confirm that ECM reprogramming is successfully finished. Click OK.
8. Go to "AUTOMATIC TCM UPDATE PROCEDURE".
TCM UPDATE PROCEDURE:
2-1. AUTOMATIC TCM UPDATE PROCEDURE
1. Select Auto Mode and AT under the left ECU Upgrade column. Select OK.
2. The GDS will display the ROM ID. Confirm the ROM is applicable as shown in "ROM ID INFORMATION."
3. After the current ROM ID is displayed, select update event "106. NFA 2.4 BOOMING NOISE - TCM" and click Upgrade.
4. To begin the update, click OK
5. If the screen indicates "Voltage is OK", select OK. If not, select CANCEL and charge the GDS battery.
6. The progress bar will indicate when reprogramming reaches 100%. Wait until the next screen indicates reprogramming is complete.
7. The GDS will confirm that TCM reprogramming is successfully finished. Click OK. If not, go to "MANUAL TCM UPDATE PROCEDURE".
8. Turn the ignition switch off for at least 10 seconds then turn back ON and start the engine to confirm proper operation.
9. Check for any Diagnostic Trouble Codes and erase any DTC present.
10. Reset the TCM adaptive learning values using the GDS "System Option" menu on the main screen.
2-2. MANUAL TCM UPDATE PROCEDURE:
^ The manual update should be performed only when the automatic update fails.
^ If automatic update fails, turn the ignition key OFF for about 10 seconds, place it back in the ON position and then perform manual update.
1. From the GDS home screen, select ECU Upgrade.
2. Enter the vehicle information and "ENGINE", then click OK.
3. From the ECU Upgrade window on the left, select Manual Mode and AT.
4. Select Upgrade Event #106. NF BOOMING NOISE - TCM. "Select 2.4 NAS: 39100- 25135" and click OK.
5. Enter "5135" as the password for manual upgrade then click OK.
6. If the results indicate "Voltage is OK", select OK. If not, select CANCEL and charge the GDS battery.
7. The progress bar will indicate when reprogramming reaches 100%. Wait until the next screen indicates reprogramming is complete.
8. The GDS will confirm that TCU reprogramming is successfully finished. Click OK.
9. Turn the ignition key OFF for 10 seconds and then start the engine to confirm proper operation of the vehicle.
10. Check for any Diagnostic Trouble Codes (DTCs) and erase the DTC(s) present.
11. Reset the TCM adaptive learning values using the GDS "System Option" menu.
WARRANTY INFORMATION: