Toyota Corolla (E170): Using the steering wheel switches to change audio source

The audio source changes as follows each time the “MODE/HOLD” switch is pressed.

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    Circuit description
    Shifting from 1st to o/d is performed in combination with on and off of the shift solenoid valve s1 and s2 controlled by ecm. If an open or short circuit occurs in either of the solenoid valves, the ecm controls the remaining normal solenoid valve to allow the vehicle to be operated smoothly ...

    Keys
    The following keys are provided with the vehicle. Type A Keys (without a wireless remote control function) Key number plate Type B Keys (with a wireless remote control function) Operating the wireless remote control function Key number plate Type C Electronic keys Operating the sm ...

    Windshield wipers and washer
    Operating the wiper lever The wiper operation is selected by moving the lever as follows. When intermittent windshield wiper operation is selected, the wiper interval can be also adjusted. 1 Intermittent windshield wiper operation 2 Low speed windshield wiper operation 3 High speed windshield ...