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Are you having problems with your 2003 Toyota RAV4? Let our team of motoring experts keep you up to date with all of the latest 2003 Toyota RAV4 issues & faults. We have gathered all of the most frequently asked questions and problems relating to the 2003 Toyota RAV4 in one spot to help you decide if it's a smart buy.
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It could be the ECU, but I would think it’s more likely at that age that the transmission needs a rebuild. Have a transmission mechanic assess it for you.
It has a timing chain, which doesn’t require changing regularly, as a belt does. The only serious problem the RAV4 suffered related to the ECU controlling the automatic transmission, which could fail resulting in erratic shifting.
It's a problem with the engine/gearbox management computer and affected cars all over the world. We understand that Toyota redesigned the ECM to fix the problem, so go to a Toyota dealer and ask about a new ECM that has the fix. Don't replace it with another ECM of the same sort that it is currently in your car, that won't fix the problem.
I think you would have a good case to argue that Toyota should come to the party with at least part of the repair costs. A transmission failure at such low kays is really unacceptable, particularly given the advice that it was caused by a faulty ECM, a problem Toyota knows about.