Ecm
Engine computer - Toyota Ecm - Rav4 Ecu
The transmission of your rav4 is probably its most complex system in terms of automotive mechanics. The rav4 ecm controls the transmission and when the ecm fails, the transmission will start to shift erratically. The most common problem with the rav4 ecm is that it causes a very hard shift between 1st gear and second gear. If the ecm is
not repaired in a timely fashion and the rav 4 continues to be driven, then your transmission may go bad. This can result in 3 to 4 thousand dollars for a new transmission. So it is important to either buy a brand new rav4 ecm or have the original one rebuilt. We can rebuild your defective rav4 ecm for $475.00. This will save you at least $700.00 compared to Toyota's list price. And if your old ecm is repaired it will not require expensive dealer programming from Toyota. Some common part numbers for 2002 Rav4 ecu's are 89661-42811 and 89661-42652. Other part numbers for the year 2002 are 89661-42810 and 89661-42651. There are many others so these are just a few 2002 rav4 part numbers with know ecm defects.
The transmission enables your car to move forward and backward at varying speeds, with maximum efficiency and minimum loss of power. In this sense, it is vitally connected to fuel consumption because the more power it takes to move the car, the more fuel it takes to provide that power. Transmission systems vary from a 4 wheel drive rav4 to a two wheel drive rav4. There are manual transmissions part number 89661-42650 and 89661-42812 for which you supply part of the power by shifting the gears and operating the clutch yourself, and there are automatic transmissions, which do these jobs for you. The rav4 ecm is electronic and tells the solenoids when to shift. A hard shift is a sign of a bad ecm.
How to Repair the Rav4 Ecm
Rav4 automatic transmissions are difficult to explain, My attempts to fully penetrate the secrets of automatic transmission have been mind boggling, and since the idea of ever fixing the rav4 ecm yourself is unthinkable, except for people who have devoted their lives to it let's be content
to deal only with what automatic rav4 transmissions do, rather than go into detail about how they do it. This should give you a good idea of what should be done to keep your transmission in good condition, a good feel for diagnosing a possible defective ecm part number 89661-42811, and at least a rudimentary knowledge of what should be done to fix your ecm if something goes wrong with it.
All 2002 Rav4 ecm's have the capacity to shift the solenoids in the transmission. This will make your rav4 change direction from forward to reverse. the rear wheels or the front wheels on cars with front wheel drive, have to be told which side to rotate. They must also know how fast to turn. and they must be supplied with extra power for starring. climbing hills, and pulling heavy loads.