Yes, most anyone with a little mechanical knowlege can fix this. Dealerships are EXPENSIVE. Start by pulling the inside door panel off, and look inside the door, by the latch. See what looks out of place, and try working the inside lock switch. On my 96, the rivet holding the lock actuator sheared off,causing the door Not to lock in my case. Get a Haynes manual. While it does not have everything in it, it is an big help about repairing most anything the average owner would want to try. Haynes manuals can be bought for around $8.00 or so on Amazon.