top not going down and warning light on ! PLEASE HELP

[Moe370]

Hi guys i own a 2010 Nissan 370z roadster.

One day i put the top down and decided after the top had retracted down that the weather was too hot so i decided to put it back up and noticed that the top would get to the end and retract back about a centimeter. I pressed close a couple more times, it then locked into place. As i drove off i realised a beeping sound and the roof warning light was on. I parked on the side of the road and tried to open it and it wouldn't work, no sound from the motor, no beeps. I called Nissan service so they can check it and they didn't have an available slot for a week.

The day before i took it to Nissan i was driving and realised that there was no beeping and no warning light. I immediately parked on the side and attempted to put the top down. As i was holding the open button i could here the motor but the top only opened about a centimeter. I then held the close button and it locked into place. I tried the open button again and it opened all the way, i thought i was in the clear lol. When i arrived at my destination it started to rain so i put the top back up and realised the same problem (it would get to the end and retract back a centimeter, it then locked into place after a couple of goes with the warning light still on as i drove). I took it to Nissan the next day and they did some checks and a diagnostics test but they couldn't fix it. They did however pass along the codes it gave out which were B1731 (hydraulic state timeout) and B177A ( roof state incorrect). They checked the hydraulic lines and said they look fine. Nissan referred me to a convertible top specialist named "car soft top repair" which are based in Sydney Australia, Artarmon.

If anyone can help it would be deeply appreciated, and i thank you in advance and i apologize for the lengthy post just wanted to give everyone a detailed description.

Thank you.