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:

Speaking on the phone
The following screen is displayed when speaking on the phone. To adjust the call volume Select “-” or “+”. You can also adjust the volume using the steering switches or the volume knob. To prevent the other party from hearing your voice Select “Mute”. Inputting tones When usin ...

How to proceed with troubleshooting
HINT: *: Use the intelligent tester. 1 VEHICLE BROUGHT TO WORKSHOP 2 CUSTOMER PROBLEM ANALYSIS (a) Confirm problem symptoms 3 CHECK MULTIPLEX COMMUNICATION SYSTEM* Check if the multiplex communication system DTC is output. HINT: The center airbag sensor assembly of this system ...

System check
HINT: Performing a SYSTEM CHECK enables the system, which consists of the multiple actuators, to be operated without removing any parts. In addition, it can show whether or not any DTCs are set, and can detect potential malfunctions in the system. The SYSTEM CHECK can be performed with an inte ...

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