I have searched various forums including this one for other posts discussing this problem and I found some where someone had the same issue with the door ajar light on all the time and getting brighter with the door open however, I could never find any conclusion to any of the posts and what the problem was.
Some people mentioned it could be the Multi-function alarm module under the drivers side fuse box but when I look under there I don't know what I am looking for, is it the big green thing? How would I test the MFAM, just take it out and see if the light goes off? Also if it is of any help in diagnosis the keyless entry still works just fine. Thanks.