Toyota Corolla (E170): Automatic air conditioning system

Air outlets and fan speed are automatically adjusted according to the temperature setting.

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Inspection procedure
Hint: hand–held tester only: narrowing down the trouble area is possible by performing ”a/f control” active test (heated oxygen sensor or other trouble areas can be distinguished). Perform active test using hand–held tester (a/f control). Hint: ”a/f control” is the active te ...

Registering and connecting from the “Bluetooth* Setup” screen
To display the screen shown below, press the “SETUP” button and select “Bluetooth*” on the “Setup” screen. 1 Select to connect the device to be used with multimedia system. 2 Select to register a Bluetooth® device to be used with multimedia system. 3 Select to set detailed Bluet ...

Circuit description
In the diagram below, when the engine is cranked, current flows from terminal st2 of the ignition switch to the starter relay coil and also current flows to terminal sta of the ecm (sta signal). When the sta signal and ne signal are input to the ecm, tr is turned on, current flows to the c ...