check engine how to check code ???elentra 2002

how to entry in diagnostic mode for elentra 2002 and a wnat the code list for check engine light!!!
tanks
check engine stay lit before jam in snow.

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You'll need to check the car with an OBD-II code reader. The code list is far too large for me to post here, but you can access service information at www.hmaservice.com. You'll need to register for a free account.
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