Limping Hyundai Genesis Coupe
This bulletin provides information related to an ECM software update of some 2010 Genesis Coupe 2.0L manual transmission vehicles to address either of the following:
* Malfunction indicator lamp illuminated with DTC P0605 (Internal Control Module ROM Error) stored in the ECM. The vehicle may have been operating in the reduced power on limp-home mode.
* Slow rpm drop when releasing the throttle during gear shifts or on deceleration from high engine speed.
According to Hyundai, applicable vehicles include 2010 Genesis Coupe 2.0L cars at start of production to July 10, 2009.
To verify that the vehicle is affected, check the version of the vehicle’s control unit ROM ID with reference to the ROM ID information table before attempting to update the control unit software.
ROM ID INFORMATION TABLE
Model:Genesis Coupe BK 2.0
ECM P/N -- 39121-2C090
Smart key system -- YES
ROM ID -- Previous K0C0RG3A and K0C0RH2A / New K0C0RH2B
ECM P/N -- 39121-2C110
Smart Key system -- NO
ROM ID -- Previous -- K0C0MG3A and K0C0MH2A / New K0C0MH2B
After the ECM update, clear any DTCs from the control units which communicate with each other either by CAN-bus, such as ESC, ACU, TPMS and the Smart Key system (the ECM is an immobilizer type if the vehicle has the Smart Key system).
* Make sure that the vehicle’s battery has reasonable charge. If the vehicle has been in storage for days, run the engine to assure an adequate battery charge state for reliable update results.
* Turn off all lamps (do not leave the head lamp switch in auto mode) and all accessories (including heater, A/C, blower, radio, seat warmer, defroster, etc.).
* Perform the update with the ignition switch in the ON position.
* Be careful not to disconnect any cables connected to the vehicle or scan tool during the update.
* Do not turn off the ignition switch during the update.
CONTROL UNIT UPDATE USING THE GDS
1. Connect the power supply cable to the diagnostic terminal.
NOTE: If attempting to perform the update with the power supply cable disconnected from the diagnostic terminal, make certain that the diagnostic terminal is charged enough for the update. If not, the update may fail in progress. It is strongly recommended to connect the power supply cable to the diagnostic terminal during the update procedure.
2. Connect the USB cable between the VCI (Vehicle Communication Interface) and the diagnostic terminal.
NOTe: When performing the update using the GDS, wireless communication between the VCI and the diagnostic terminal is NOT available. Therefore, be sure to connect the USB cable between the VCI and the diagnostic terminal.
3. Connect the 16-pin DLC cable from the VCI into the vehicle’s 16-pin connector under the driver-side instrument panel.
4. Turn on the VCI and diagnostic terminal with the ignition key in the ON position. Do not start the engine.
AUTOMATIC UPDATE PROCEDURE USING THE GDS
1. Choose VIN or ECU Upgrade on the initial screen.
2. Enter the vehicle information by pressing the VIN Auto Detect button, entering the VIN or selecting the vehicle model, model year, engine/fuel type and ENGINE as the system, and then click OK.
3. Select ECU Upgrade on the initial screen after entering the vehicle information.
4. Select Auto Mode, then ENGINE in the left ECU Upgrade column.
5. Read Preparation and click OK.
6. The GDS will read the vehicle’s ROM I
7. After the Current ROM ID is displayed, select appropriate Update Event, “149.BK 2.0 PUT LEARNING LOGIC IMPROVEMENT.”
8. After clicking the Upgrade button, read information, then click OK.
9. The vehicle battery voltage is checked to make sure it is at least 12 volts to assure reliable update results. Click OK if the results indicate Voltage is OK.
NOTE: If voltage is below 12 volts, click Cancel and then run the engine to assure an adequate battery charge state.
10. Update will begin and the progress of the update will appear on the bar graph.
11. Update 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.
12. Click OK on the final screen, which indicates update is complete.
13. Check if any incidental DTCs have been created by the update, and clear any DTCs that are present.
Be sure to clear DTCs from the control units, which communicate with each other by CAN-bus, such as ESC, ACU, TPMS and the Smart Key system.
14. Start the engine to confirm proper operation of the vehicle.
MANUAL UPDATE PROCEDURE USING THE GDS
(Caution: Manual update should only be performed when automatic update fails. If automatic update fails, turn the ignition key OFF for about 10 seconds, then place it back in the ON position to reset the control unit before performing manual update.
1. Within the ECU Upgrade screen, select Manual Mode in the left column, then select the appropriate Update Event “149.BK 2.0 PUT LEARNING LOGIC IMPROVEMENT.” Select the appropriate control unit part number with reference to the ROM ID Information Table and click OK.
2. Enter the appropriate password from the table below and then click OK.
BK 2.0 IMMO : 39121-2C090 2090
BK 2.0 NON IMMO : 39121-2C110 2110
3. The vehicle battery voltage is checked to make sure it is at least 12 volts. Click OK if the results indicate Voltage is OK. (If voltage is below 12 volts, select Cancel and then run the engine to assure an adequate battery state of charge).
4. Update will begin and the progress of the update will appear on the bar graph.
5. Update will occur until 100% is reached on the bar graph. Turn the ignition key OFF for 10 seconds, then place it back in the ON position, and then click OK to continue according to Information displayed on the screen.
6. Click OK on the final screen, which indicates that the update is complete.
7. Check if any DTCs have been created by the update, and clear any present DTCs. (Be sure to clear DTCs from the control units which communicate with each other by CAN-bus, such as ESC, ACU, TPMS and Smart Key system).
8. Start the engine to confirm proper operation.