Cooling System - MIL ON/DTC's U1008/P1235 Set
NUMBER 102GROUP Engine
DATE August 2011
MODEL Optima (TF HEV) 2011MY
SUBJECT: AAF UPDATE - LOGIC IMPROVEMENT
This bulletin provides information related to the AAF (Active Air Flap) software upgrade of some 2011 MY OPTIMA HEV vehicles which may experience the following:
^ Malfunction Indicator Lamp illuminated with the ECU (Electronic Control Module) system-related DTC(s), U1008 and/or the AAF (Active Air Flap) system-related DTC(s) P1235.
- U1008: Lost Communication with Radiator Shutter (Active Air Flap)
- P1235: Active Air Flap System Fail (If P1235 DTC is displayed again after AAF update, check for AAF proper operation by using actuation test).
^ MIL ON, but there is NO DTC in the AAF system.
^ Intermittent communication failure between AAF unit and GDS.
To correct this condition, the ECU should be reprogrammed using the GDS download as described in this bulletin.
ECM Upgrade Procedure:
Upgrade Event Name
* NOTICE
^ A fully charged battery is necessary before ECU upgrade can take place. It is recommended that the Midtronics GR8 1299 system be used in ECM mode during charging. DO NOT connect any other battery charger to the vehicle during ECM upgrade.
^ All ECU 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 ECU upgrade procedure.
^ DO NOT start the engine during ECM upgrade.
^ DO NOT turn the ignition key 'OFF' or interrupt the power supply during ECU upgrade.
^ When the ECU upgrade is completed, turn the ignition 'OFF' and wait 20 seconds before starting the engine.
^ ONLY use approved ECU upgrade software designated for the correct model, year.
ROM ID INFORMATION TABLES
*NOTICE
A chime will be heard from the cluster during ECU upgrade procedure.
1. Connect the power supply cable to the GDS tool.
*NOTICE
If attempting to perform the ECM upgrade with the power supply cable disconnected from the GDS tool, be sure to check that the GDS tool is fully charged before ECM upgrade. If the GDS tool is not fully charged, failure to perform the ECM upgrade may occur. Therefore, it is strongly recommended that the power supply connector be connected 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 drivers 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 VIN AUTO DETECT function.
6. Select ECU Upgrade.
7. Select Auto Mode and press Next button to continue.
8. Select AAF and press OK button to continue.
9. Turn IG off for 20 seconds and then back on. Click the OK button to continue.
10. Read Preparation and click OK.
11. The GDS will read the vehicle's ROM ID.
12. After the Current ROM ID is displayed, select the Upgrade Event, "165.TF HEV AAF UPDATE."
13. After clicking the Upgrade button, read Information then click OK.
14. When the GDS tool reports that the ECU upgrade has been successfully completed, click OK, turn OFF the ignition key, and wait at least 10 seconds before attempting to start the engine.
15. Check if any incidental Diagnostic Trouble Codes DTC(s) have been created by the upgrade process; clear any DTC(s) that may be present.
16. Place vehicle into READY mode to confirm proper operation.
Manual Mode Upgrade
*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 tables for Manual Mode passwords.
* MANUAL MODE ECM UPGRADE PASSWORD:
1. Within the ECU Upgrade screen, select Manual Mode in the left column, then select Upgrade Event #165. Select the appropriate control unit part number with reference to the ROM ID Information Table and click OK. Then enter the appropriate password from the above table, and then click OK.
2. Upgrade will begin and the progress of the upgrade will appear on the bar graph.
3. Upgrade will occur until 100% is reached on the bar graph. Turn the ignition key OFF for 10 seconds, place it back in the ON position and then click OK to continue according to Information displayed on the screen.
4. Click OK on the final screen, which indicates upgrade is complete.
5. Check if any incidental Diagnostic Trouble Codes DTC(s) have been created by the upgrade process; clear any DTC(s) that may be present.
6. Place vehicle into READY mode to confirm proper operation.
AFFECTED VEHICLE PRODUCTION RANGE
WARRANTY CLAIM INFORMATION