Toyota Corolla (E120): Ecm power source circuit

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Data list/active test
1. Data list Hint: using the data list displayed by the hand–held tester or the obd ii scan tool, you can read the value of the switches, sensors, actuators and so on without parts removal. Reading the data list as a first step of troubleshooting is one method to shorten diagnostic time. ...

Bluetooth® phone message function
Received messages can be forwarded from the connected Bluetooth® phone, enabling checking and replying using the multimedia system. Depending on the type of Bluetooth® phone connected, received messages may not be transferred to the message inbox. If the phone does not support the message fu ...

Circuit description
The throttle position sensor is mounted in the throttle body and detects the throttle valve opening angle. When the throttle valve is fully closed, a voltage of approximately 0.3 To 1.0 V is applied to terminal vta of the ecm. The voltage applied to terminal vta of the ecm increases in pro ...