Hi guys, If you have a RAV4 with transmission issues its the ecu that's the culprit. Don't go changing the transmission oil and strainer/filter thinking it'll rectify the problem, save that for when you hange out the ECU. Some sites will tell you to just change the ECU and it'll fix the problem, that's not always the case, if the transmission is slipping and thumping into gears and you keep driving it anyway , it will damage the transmission and changing the ECU alone won't fix it. If you guys need help or advice, Don't be shy , I'm more than happy to help. I'm a Fully trained and qualified Toyota technician. We fix these cars and problems on a daily basis.