It is probably the interlock in the trunk where the partition is located. I live in Houston too. I live in NWest area. Where are you located. May be able to take a look if you like if you have time tomorrow morning. I have to do my safety inspection tomorrow . I am going to try and get that done about 9am,so let me know. If you are close, and it is what I think, could have it working in a minute or so! Cell is 281-635-0869