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Hello members:

I have a Hyundai Accent 2009 1.6L A/T, car does not start, with DTC P0605 (internal control module ROM error).

Do any of you verify the checksumm and correct it ?, or have a good firmware for this ecu ?

thanks very much

I think you can use a rom from some EU accents . Or try to write via obd your file . Using chiploader with 798 module. CS will be calculated automatically .
Or try to find another rom for PM98A637H .

Accent 2009 USA 16L AT 39131-26BE6 GMC9N6CPS4A000 PMC2C14NB7 ST10275CE6 original bin = all checksumms Ok