Toyota Corolla (E120): Circuit description

When the cruise control main switch assy button is turned to on, cruise main indicator light comes on.

Wiring diagram

Wiring diagram

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    Using the steering wheel switches
    The steering wheel switches can be used to operate a connected cellular phone. Operating a telephone using the steering wheel switches ■ Steering wheel switches on the right hand side 1 Off hook switch • Make a call • Receive a call • Display “Phone” screen 2 On hook switch ...

    Diagnostic trouble code chart
    If a dtc is displayed during the dtc check, check the circuit listed in the table below and proceed to the page given. * :● ... Mil light up ...

    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 ...