Toyota Corolla (E120): Circuit description

The door courtesy switch turns on when the door is opened and off when the door is closed.

Wiring diagram

Inspection procedure

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    Inspection procedure
    1 Inspect ecm(+b voltage) Turn the ignition switch on.  measure the voltage between the terminals of the e4 and e6 ecm connectors. Standard: 2 Check harness and connector(ecm – body ground) Disconnect the e4 ecm connector. check the resistance between the wire ...

    Replacing light bulbs
    ■ Headlight high beams 1 Turn the bulb base counterclockwise. 2 Pull the bulb out while pressing the lock release of the connector. 3 Replace the light bulb, and install the bulb base. Align the 3 tabs on the light bulb with the mounting and insert. 4 Turn and secure the bulb base. ...

    Diagnostic trouble code chart
    The inspection procedures are shown in the table below. This table allows efficient and accurate troubleshooting using the diagnostic trouble codes displayed in the diagnostic trouble code chart. Proceed with troubleshooting in accordance with the inspection procedures listed in the diagnost ...