Toyota Corolla (E170): Day mode

When the headlights are turned on, the screen dims.

However, the screen can be switched to day mode by selecting “Day Mode”.

The screen will stay in day mode when the headlights are turned on until “Day Mode” is selected again.

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    Circuit description
    When the ignition switch is turned on, battery positive voltage is applied to the coilwhich closes the contacts of the efi main relay (marked: efi) and supplies power to terminal +b of the ecm. This signal causes current to flow to the coil, closing the contacts of the efi relay and supplyin ...

    Monitor description
    The battery supplies electricity to the ecm even when the ignition switch is off. This electricity allows the ecm store data such as dtc history, freeze frame data, fuel trim values, and other data. If the battery voltage falls below a minimum level, the ecm will conclude that there is a fault ...

    Inspection procedure
    1 Input signal check See input signal check on page 05–745. check the indicator light operation when each of the set/ coast, resume/accel and cancel is turned on. Ok: set/coast, resume/accel switch: the signals shown in the table on the left should be output when each switch is ...