A/T Controls - A/T Shock/Clunking After Being Parked
GROUP TransNUMBER 038
MODEL Sorento (XM) 2.4L 2011MY
DATE MAY 2011
SUBJECT: TCM UPGRADE - XM TCM UPGRADE
This bulletin provides information for TCM software upgrade of some 2011 MY Sorento (XM) 2.4L vehicles with automatic transaxles which may experience a shock and clunking noise when the engine starts after long-term parking and a Malfunction Indicator Lamp illuminated with the ECM (Electronic Control Module) system-related DTC P0748.
For confirmation that the latest reflash has been done to a vehicle you are working on, verify CAL ID using the tables in this TSB.
- P0748 : Pressure Control Solenoid Valve (VFS) "A" Electrical
To correct this condition, the TCM should be reprogrammed using the GDS download as described in this bulletin.
*NOTICE
^ A fully charged battery is necessary before ECM upgrade can take place. It is recommended that the Midtronics GR8 1200 system be used in ECM mode during charging. DO NOT connect any other battery charger to the vehicle during ECM upgrade.
^ All ECM upgrades must be done with the ignition key in the "ON" position.
^ Be careful not to disconnect any cables connected to the vehicle or GDS during the ECM upgrade procedure.
^ DO NOT start the engine during ECM upgrade.
^ DO NOT turn the ignition key "OFF" or interrupt the power supply during ECM upgrade.
^ When the ECM upgrade is completed, turn the ignition "OFF" and wait 20 seconds before starting the engine.
* Only use approved ECM upgrade software designated for the correct model, year.
ROM ID INFORMATION TABLES
1. Connect the power supply cable to the GDS tool.
2. Connect the USB cable between the VCI and the GDS tool.
*NOTICE
When performing the ECM upgrade using the GDS tool, wireless communication between the VCI and GDS tool is not available. Therefore, be sure to connect the USB cable between the VCI and the GDS tool.
3. Connect the Main 16-pin DLC cable (GHDM -241000) to the VCI.
4. Connect the Main 16-pin DLC cable (GHDM - 241000) to the OBD-II connector, located under the driver's side of the instrument panel.
5. With the ignition key ON, turn ON the VCI and GDS tool. Access the GDS vehicle identification number (VIN) screen and configure the vehicle using the Auto VIN Function.
6. Once back at the GDS Main Screen, select ECU Upgrade on initial screen. Next select Auto Mode, and then A/T Perform the ECU upgrade in accordance with normal GDS tool ECU upgrade procedures.
*NOTICE
Do NOT attempt to perform a Manual Mode upgrade unless Auto Mode fails. Always follow the instructions given on the GDS tool in either Auto or Manual mode. See table for Manual Mode passwords.
* MANUAL MODE ECM UPGRADE PASSWORDS:
* Do NOT perform Manual Mode ECM upgrade unless Auto Mode fails.
Upgrade Event # 159
7. When the GDS tool reports that the ECM upgrade has been successfully completed, click OK, turn OFF the ignition key, and wait at least 10 seconds before attempting to start the engine.
8. After upgrade is completed, reset the TCM adaptive learning values.
9. Check for Diagnostic Trouble Codes using the GDS and erase any DTCs stored such as EPS, ESC, and TPMS. Due to CAN BUS multiple DTCs maybe set during reprogramming.
10. Start the engine to confirm proper operation of the vehicle.
AFFECTED PRODUCTION RANGE
SERVICE ACTION WARRANTY CLAIM INFORMATION