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You may experience only one of these symptoms or a combination of more than one of them: Symptoms of the problemīelow is a list of the most common symptoms with a failing ECM in your 2001-2005 Toyota Rav4. Either 2.0L engine (1AZ-FE and 1AZ-FSE) or 2.4L engine (2AZ-FE). Either left-sided or right-sided steering wheel. Either four-wheel drive (4WD) or two-wheel-drive (2WD) models. The units affected are the 2001-2005 Toyota models Toyota Rav4, Toyota Picnic, Toyota Avensis, some Toyota Ipsum, and some Toyota Gaia. In the USA alone, 246,000 units are estimated to be affected. This Rav4 transmission problem is very common and it is affecting more than a million Toyota Rav4 vehicles all around the globe.
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Otherwise, we would send a counter-offer, still at a cheaper price than listed, and offer a 2-year warranty.
#TOYOTA RAV4 2004 TRANSMISSION FLUID CODE#
If we accept the offer, we email them a coupon code to match their offer when ordering. At, we charge less than $200 and on top of that, allow customers to offer a better price for them (Better Offer feature). For these models’ estimated market value, allowing the transmission to fail this way, would be practically uneconomical to repair it. If you do not service it and instead keep using your vehicle with a failing ECM, soon a transmission repair or replacement job will add up to the bill, which at the time of writing this, may go up to $4000. If you do so, the problem will only be a damaged ECM. That is why, when you notice any of these symptoms, you must act quickly and have your Rav4 ECM serviced the soonest possible. This situation, in no time, will burn the transmission internal clutches, and not only the ECM will need service, but the transmission too. It is not until certain speed that it picks up and moves normally. When you try to move your Rav4 vehicle and it hardly moves and feels very sluggish, our natural response is to accelerate harder to try to move it, while noticing that RPMs go up and your Rav4 is still moving slow or sluggish. This happens because, at that moment, the damaged ECM failed to send the electrical pulse to the transmission solenoids to shift down to first gear, keeping it very often in the third gear instead. You stop at a red traffic light and when continuing, your RAV4 hardly moves, like if it is carrying a very heavy load. Location of the ECM in your 2001-2003 Toyota Rav4:
#TOYOTA RAV4 2004 TRANSMISSION FLUID SOFTWARE#
Reprogramming or updating the computer software will NOT fix the problem. At this time, the ECM must be repaired before the transmission suffers an internal failure commonly caused by using defective ECMs for long time periods. This is why some customers that have had problems with the ECM, describe it like if the transmission feels like falling apart. Such solenoids, gradually open and close the path of oil transmission fluid pressure depending on the pulses they receive from the ECM, to do mechanical actions, like shifting gears, locking the torque converter, and controlling the pressure applied to it.Ī defective ECM can no longer correctly control the transmission and starts sending erratic pulses to the solenoids, which in turn, transfers the erratic behavior of the ECM to the transmission by doing equivalent erratic mechanical changes and movements inside the transmission. Shifting on the “electronic” automatic transmission is controlled by the ECM by sending electrical pulses to a set of solenoids installed in the transmission’s valve body. It is good for diagnosing things monitored by the different sensors connected to it, but it is not so good for diagnosing itself. Think that the trouble codes (check engine codes) that a vehicle shows when scanned, are generated by the very same computer that is failing. Sometimes the problem is only in the morning and sometimes the problem is at night.īesides showing the issues mentioned here, it may also show trouble codes P0750, P0753, P0755, P0758, and/or P1760, though most of the time it shows no codes at all. Sometimes it shows up one day and the next morning it works flawlessly. These problems are erratic and may only show at intermittent intervals or when the vehicle is warm or have been driven for a specific time. If you own a Toyota Rav4 from 2001 through 2005 with automatic transmission and you are experiencing problems with the transmission, like harsh shifting, loss of power, launching on third gear and/or slamming into gear when it is put in reverse, then you should know that those problems are caused by a defective engine control module (Engine Computer, ECM or ECU), which also controls the automatic transmission.