service vehicle soon lite on 2001 Oldsmobile Intrigue

how do I clear codes?trouble started with key left on @ battery run all way down.abs@ trac off lites on intermitting.never had problem till batt.

by in Philadelphia, PA on May 21, 2009
1 answer
ANSWER by on May 21, 2009
You can disconnect the Battery NEGATIVE cable for 1 minute. That will do the trick. If the "Service Engine Soon" light comes back on, then you have a real issue that needs further attention i.e have the codes retrieved and diagnosed.