Engine Controls - DTC's P0456/P0461 Stored In Memory
NUMBER12-FL-006
DATE
JULY 2012
GROUP
FUEL SYSTEM
MODEL
ACCENT (RB)
Technical Service Bulletin
SUBJECT
ECM UPDATE - MIL ON DTC P0456 / P0461
Description:
This bulletin provides information for an ECM software update of some 1.6L vehicles that may experience any of the following DTC:
- P0456: Evaporative Emission System-Leak detected (Very small leak)
- P0461: Fuel Level Sensor 'A' Circuit Range/Performance
NOTE:
There are no vehicle performance issues associated with this condition.
Applicable Vehicles:
^ 2012-2013 MY ACCENT (RB) with 1.6L GDI Engine
^ Built before May 14, 2012
GDS Information:
Warranty Information:
ROM ID INFORMATION TABLE:
Verify the ECM ROM ID before updating the vehicles software. Refer to the table.
GENERAL PRECAUTIONS:
^ Connect the USB cable between the GDS and the VCI.
^ Connect the 16-pin DLC connector from the VCI into the DLC located under the drivers side dash.
^ Turn off all lights (Do not leave the headlight switch in auto mode) and all accessories (including heater/air conditioner/fan, audio, heated seats, rear defroster, etc) to ensure the battery will not be discharged during the update.
^ Perform the update with the ignition key in the ON position.
^ Do not disconnect any cables connected to the vehicle or the GDS during the update.
^ Do not start the engine or turn the ignition switch OFF during the update.
NOTE
Confirm your GDS has the most recent version. If not, connect the GDS to an Internet port, open the GDS home page and select "Update". Refer to instructions on hmaservice.com if necessary.
If you encounter GDS related problems, call the GIT.
SERVICE PROCEDURE:
GDS AUTO MODE ECM UPDATE PROCEDURE
GDS MANUAL MODE ECM UPDATE PROCEDURE