Toyota Corolla (E120): Circuit description

If the ignition switch is turned to the on position, battery positive voltage is applied to the switches, such as terminal ig of the ecu.

Wiring diagram

Inspection procedure

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    Exterior/interior trim
    Preparation Recomended tools Equipment Vehicle control system Preparation Recomended tools ...

    Using the radio
    Radio operation Select “AM” or “FM” to begin listening to the radio. 1 Power 2 Volume 3 Station selectors 4 Adjust frequency or select an item 5 AM/FM mode button 6 Scan for receivable stations 7 Seek a frequency Setting station presets 1Search for a desired station by turning ...

    Inspection procedure
    1 Check tvip ecu Check that the operation of the tvip function is normal. Hint: with this inspection, the tvip ecu cpu can be diagnosed if it works normally or not. 2 Check wire harness (tvip ecu integration relay) Disconnect the tvip ecu and integration relay connectors. ch ...