TOYOTA RAV 4 2001 1007,000 KM. ECU - TRANSMISSION ISSUES,
I have had the same issues with the ECU as you all manifesting with the transmission suddenly slipping, literally an overnight phenomenon.
I had the car checked by usual mechanic with handheld computer diagnostics, no fault codes;, however symptoms still there so stopped driving the car and started to ring around to inform myself.
The answers came back thick and fast, it was as if every one could diagnose the problem without even seeing the car, they literally told me what year and model car I had after briefly describing the problems.
"Change the ECU [$ 1700- $2100] and if you are lucky that may fix the problem, if unlucky and you drove the car without noticing in time the transmission will need replacing[$3500 -7500]" was the standard reply.
After reading all the posts on web about this and speaking to dozens of independent transmission workshop Experts & Mechanics, I have contacted NRMA, Dept of fair trading, and Channel Seven and Nine regarding doing a story on their "current affair", & "Today Tonight" programs as their are some massive safety issues related to this situation, [ my wife & two young children were nearly rammed by other vehicles several times at traffic lights because of transmission suddenly slipping, the media are interested in this !!!.
I have several experts willing to go on record and speak about this issue.
Let me know if you want to form a group to bring this issue into public awareness thus encouraging Toyota to take responsibility for their products and stop sweeping this under the carpet.
After my local Toyota workshop, replaced the ECU [$ 1682] the vehicle seemed Ok, but as the transmission will not show up any fault code if it is damaged only time will tell !
Confidence in the brand Toyota is now at a very low point with me.
Before paying my repair bill I contacted Toyota customer relations Sydney/ Taren Point /Tel; 02 9710 3333 and made a serious complaint regarding this issue and informed them of my awareness of just how widespread this issue is and how the media is interested in doing a story on this matter, [ in 2006 these vehicles were recalled in the USA for software upgrade a free service ], Anyway they spoke to the dealer, the dealer spoke to the warranty dept ,and lo and behold they came to the party and reduced my repair bill by $ 800 This is a start however I am convinced that this should be a free recall service and if transmissions are damaged due to a faulty ECU that controls it the transmission is by definition COLLATERAL DAMAGE for wich Toyota also should be responsible and prepared to assist their loyal [till now] customers.
IF YOU HAVE YOUR CAR REPAIRED BY TOYOTA YOU COULD TRY TO CALL CUSTOMER SERVICE PRIOR TO PAYING YOUR BILL AND HOPEFULLY THIS WAY YOU TOO CAN AT LEAST SAVE SOME MONEY AND COLLECTIVELLY WE WILL EVENTUALLY ENCOURAGE TOYOTA TO ADJUST THEIR DENIAL STRATEGY ABOUT THIS MATTER.
PLEASE RAISE AWARENESS ABOUT THIS ISSUE & TELL EVERYONE YOU KNOW!