thanks guys, that makes sense now, set it to 1 and wrt it, then set to 0 and do not wrt it, after power on off, back to 1. i did tell him to wrt it at 0 now. thats funny, I'm now wondering if that will happen on all the other cars, we have not turned any off yet. thats a good one. could have been just an oversight on the mechanics part, while he was working on it. but there is that manual toggle switch to disconnect the doors, so wondering why they would bother. we have had a few jobs where the previous big companies were a little upset at losing the job, especially the route mechanic, just took over a otis 211 job, talked to engineer, the cars rarely break down, day after we took over the job, 2 cars had 5 different fuses blown. really strange owner changed the locks that day.