I have the ill fated gearbox fault and will not turnover at all on my 2003 x type 2.5 with 160,000 miles. Since then I have replaced the battery with a brand new one. I replaced the tcm and ecu with matching used ones (they said were working but don't know how to check but no corrosion) still no luck still gearbox fault and won't even turnover. I was next going to try to flush and fill the tranny fluid but didn't find any fluid to buy any ideas? Either what fluid and where to buy or something else to try and be able to start driving again. Thank you