First of all the problem needs to be diagnosed. You can do that yourself if you have the Toyota diagnostic tools, take it to a garage or better still, bring it in to us at Cartronics and we’ll do it for you.
If you have already sent your ECU to another company and the fault is still the same, please still send it to us and as long as no damage has been caused we should still be able to repair it.
Examples of RAV4 ECM units that are having these problems are listed below, but there are several more, so don’t hesitate on asking us or acquiring the service if you don’t see your ECM’s number in the list below. Simple rule: if it is an Automatic, 2001, 2002 or 2003 Toyota RAV4, either 4×2 or 4×4, then it is one of the affected models.
| 89661-42620 | 89661-42621 | 89661-42622 | 89661-42650 | 89661-42651 | 89661-42652 |
| 89661-42653 | 89661-42654 | 89661-42660 | 89661-42661 | 89661-42662 | 89661-42670 |
| 89661-42671 | 89661-42672 | 89661-42673 | 89661-42680 | 89661-42681 | 89661-42682 |
| 89661-42683 | 89661-42700 | 89661-42701 | 89661-42702 | 89661-42720 | 89661-42760 |
| 89661-42761 | 89661-42762 | 89661-42810 | 89661-42811 | 89661-42812 | 89661-42820 |
| 89661-42821 | 89661-42822 | 89661-42840 | 89661-42880 | 89661-42881 | 89661-42882 |
| 89661-42890 | 89661-44250 |
Once the problem has been confirmed as being the ECU unit and not some other electrical problem, you can either leave your RAV4 with us, bring it to us or send us the ECU via post taking advantage of our super fast repair service. If you wish to remove the ECU yourself then take a look at our removal instructions.
Bear in mind that if you keep using your RAV4 while the ECM is failing, the automatic transmission may suffer an internal failure that would need a transmission repair or replacement. It would eventually burn the transmission’s clutches, disks and other inner parts. A transmission repair job is going to be a far more costly and time consuming situation. Have your ECM repaired now to avoid these future problems and extra cost.
We will ‘live’ test the unit before repairing it and ‘live’ test the unit after we repair before we send it back to you to ensure its working, usually posting it back within 24 hours of receipt.
When you receive your repaired unit all you have to do is install and perform a few accelerations. The reset adaptation may lead to an unusually low idle but should return to normal after 30 miles.