What would cause a key offf battery drain on a 1998 Dodge Intrepid?

Possible fix, remove NEGITIVE battery cable,..connect a common test light[aligater clamp end to cable... point end to battery post] to bridge a

circuit at the NEGITIVE post-to-cable...with all doors,trunk lid, and glove box shut,key

out of ignition...disconnect under hood light... if light is off there is NO battery drain,

open drivers door,the testlight should come on.....this tests for battery draw...