Engine Controls - MIL ON/DTCs P0300/P0128/P0461
Group FUEL SYSTEMNumber 10-FL-011
Date OCTOBER, 2010
Model 2010 ACCENT
Subject
ECM UPDATE - P0300, P0128, P0461 DTC LOGIC
DESCRIPTION:
This bulletin provides information related to the ECM software update of some 2010MY ACCENT(MC) 1.6L vehicles which experience a malfunction indicator lamp illuminated with any of the ECM (Electronic Control Module) system-related DTC's as listed below:
^ P0300 Random/Multiple Cylinder Misfire Detected
^ P0128 Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature)
^ P0461 Fuel Level Sensor A Circuit Range/Performance
APPLICABLE VEHICLES:
^ 2010MY Accent
ECM ROM ID INFORMATION:
NOTE:
This TSB applies if the vehicle ROM ID is listed in the PREVIOUS column of the ROM ID Table above. The ROM ID in the NEW column was the latest available ROM ID at the date of this TSB publication, however, you may select a later event number if one is shown in the GDS ECM update list, even if it describes another issue. This would generate a more recent ROM ID than shown, but would also include the update from this TSB.
GDS SYSTEM AND ECM UPDATE PRECAUTIONS:
CAUTION:
Please verify the following items before performing the ECM update:
^ Make sure the vehicle's battery has reasonable charge. If the vehicle has been in storage, run the engine to ensure an adequate battery charge state for reliable update results. The ECM Update procedure contains a check to verify that battery voltage is above 12 volts to allow the procedure to occur.
^ The USB cable must be used for ECM Update between the GDS and VCI. The procedure will not work in VCI wireless mode.
^ Make sure the GDS laptop battery indicator in the lower right tray icons has 50% or more charge (half bar on the battery symbol). Charge the laptop battery with the AC adaptor cable if the charge is less than 50%.
^ Turn off all lamps (do not leave head lamp switch in auto mode) and all accessories (including heater, A/C, blower, radio, seat warmer, defroster, etc.) to prevent battery discharge during the update.
^ Perform 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 start the engine during update.
^ Do not turn off the ignition switch during update.
INTERNET UPDATE OF GDS SOFTWARE VERSION:
NOTE:
This GDS update may be necessary to ensure your GDS has the latest possible ECM updates.
1. Close the GDS program and restart it with the internet connected to the GDS.
2. Wait for the following GDS Update Program to launch within approximately a minute. It will inform you if there is an update as shown below.
3. If an update is available press OK and follow instructions to update the GDS software version followed by the VCI firmware level if it also exists.
NOTE:
You must have the VCI connected to GDS by the USB cable to update the VCI.
4. Perform Download followed by Update Start and then Exit when completed.
GDS AUTO MODE ECM UPDATE PROCEDURE:
1. Turn the vehicle's ignition key to the ON position.
2. Select ECU Upgrade on the initial GDS home page screen. If you are not at the home page double click at GDS at top left of the screen to go back to home page.
3. GDS will automatically determine the vehicle information based on the VIN it reads from the vehicle's ECM, then select Engine Control as system and OK like this example:
NOTE:
Screen shown is example only. Your screen should show the applicable vehicle, model year, and engine of the vehicle you are working on.
4. Select Auto Mode then ENGINE then OK so the ROM ID will be read:
5. After reading the ROM ID if there is an available update it will display a screen like that shown below with the available updates for the vehicle. Select the Upgrade Event: "209. MC 1.6 P0300, P0128, P0461 DTC LOGIC" or any later (higher) event number that shows in the GDS list for any other issue.
NOTE:
Select the most recent available (highest) event number if one appears in the list, even if it describes a different issue. The vehicle description should be compatible. It will ensure the vehicle receives the latest available updates.
NOTE:
This screen is an example only. Your screen will show the current ROM ID and latest ROM ID for update based on the event that you select. Choose the latest available event as explained in the prior note.
NOTE:
An error message may appear instead of the above if the ECM Update had already been completed or is not available for your vehicle.
6. After selecting the Upgrade button the vehicle battery voltage is checked to make sure it is at least 12 volts, which is required to ensure reliable update results. Select OK if the results indicate voltage is above 12 volts.
CAUTION:
If voltage is below 12 volts, then select Cancel and run the engine at idle for at least 10 minutes to ensure an adequate battery charge state for reliable update results.
7. Updating will occur until 100% is reached on the bar graph, then the confirmation screen will be displayed. Turn the ignition key OFF for 10 seconds, place it back in the ON position and then select OK.
8. Select OK on the final screen, which indicates update is complete.
9. Check for and erase any DTC found in each system of the ENGINE and A/T.
10. Start the engine to confirm proper operation of the vehicle.
GDS MANUAL MODE ECM UPDATE PROCEDURE:
NOTE:
Manual Mode ECM Update is intended to be used only if Auto Mode ECM Update had failed after the progress bar began during the update.
IMPORTANT:
You must reset the ECM by disconnecting the ECM connectors for 10 minutes and then reconnecting them before trying the Manual Mode ECM Update.
1. Turn the vehicle's ignition key to the ON position.
2. Within the ECU Upgrade screen, select ENGINE, Manual Mode, and then select the Upgrade Event: "209. MC 1.6 P0300, P0128, P0461 DTC LOGIC" or any later (higher) event number that shows in the GDS list for any other issue.
3. Select the appropriate control unit part number with reference to the ROM ID Information Table and then perform Upgrade.
NOTE:
This screen is an example only. It will show the latest ROM ID as you select from the specific list of ECM part numbers listed for your vehicle. Be careful to select the correct ECM part number using the ROM ID table to help. If in doubt, remove the ECM to read the part number on it. It is critical in manual mode to select the correct system and password.
4. Enter the Event password from the table below and then select OK.
5. If voltage is below 12 volts, then select Cancel and run the engine at idle for at least 10 minutes to ensure an adequate battery charge state for reliable update results.
6. Updating will occur until 100% is reached on the bar graph, then the confirmation screen will be displayed. Turn the ignition key OFF for 10 seconds, place it back in the ON position and then select OK.
7. Select OK on the final screen, which indicates update is complete.
8. Check for and erase any DTC found in each system of the ENGINE and A/T.
9. Start the engine to confirm proper operation of the vehicle.
WARRANTY INFORMATION