The Transmission Control Unit (TCU) for the 2001 Toyota RAV4 is part number U141E.
Alternate Part Numbers:
* 89661-42010
* 89661-42011
* 89661-42012
Location:
The automatic transmission control unit is usually located in the engine compartment, next to the automatic transmission. It can be bolted to the bracket or automatic transmission housing.
Functions:
The automatic transmission control unit is responsible for controlling the operation of the automatic transmission. It receives signals from various sensors, including:
*Car speed sensor
* Gear selector position sensor
*Transmission fluid temperature sensor
Based on these signals, the automatic transmission control unit determines in which mode the automatic transmission should operate and controls gear shifting.
Replacement:
Replacement of the automatic transmission control unit may be necessary in the event of a malfunction or damage. The replacement procedure may vary depending on the specific vehicle model. It usually includes the following steps:
1. Disconnecting the battery
2. Removing the automatic transmission pan
3. Disconnecting the electrical connectors of the automatic transmission control unit
4. Unscrewing the bolts securing the automatic transmission control unit
5. Removing the old automatic transmission control unit
6. Installation of a new automatic transmission control unit
7. Tightening the bolts securing the automatic transmission control unit
8. Connecting the electrical connectors of the automatic transmission control unit
9. Installing the automatic transmission pan
10. Connecting the battery
After replacing the automatic transmission control unit, it may be necessary to reset the automatic transmission ECU to ensure proper operation.