Toyota RAV4 manuals

Toyota Sienna Service Manual: System description

1. SYSTEM DESCRIPTION

(a) The ECT (Electronic controlled automatic transmission/transaxle) is an automatic transmission/transaxle that electronically controls shift timing using the ECM. The ECM detects electrical signals that indicate engine and driving conditions, and controls the shift point, based on driver habits and road conditions. As a result, fuel efficiency and power transmission performance are improved.

Shift shock has been reduced by controlling the engine and transmission simultaneously.

In addition, the ECT has features such as follows:

Definition of terms
Term Definition Monitor description Description of what the ecm monitors and how it detects malfunctions (monitoring purpose and its details). Related dtcs Diagno ...

How to proceed with troubleshooting
Hint: The ecm of this system is connected to the can and multiplex communication system. Therefore, before starting troubleshooting, make sure to check that there is no trouble in the can an ...

Other materials:

Communication Error from Distance Control ECU to ECM
DTC P1615 Communication Error from Distance Control ECU to ECM DTC U1101 Lost Communication with Distance Control ECU DESCRIPTION The distance control ECU receives information about the area in front of the vehicle from the laser sensor and then sends a brake control demand signal (decelerat ...

Reassembly
1. INSTALL REAR DIFFERENTIAL PINION SHAFT (a) Install the 2 thrust washers to the 2 side gears. (b) Install the 2 side gears, 2 differential pinion gears, 2 differential pinion thrust washers and differential pinion shaft to the differential case. HINT: Align the holes of the differentia ...

Rear Occupant Classification Sensor RH Collision Detection
DTC B1788 Rear Occupant Classification Sensor RH Collision Detection DESCRIPTION DTC B1788 is output when the occupant classification ECU receives a collision detection signal sent by the rear occupant classification sensor RH if an accident occurs. DTC B1788 is also output when the front s ...

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