Toyota Corolla (E120): Circuit description

The key unlock warning switch comes on when the ignition key is inserted in the key cylinder and goes off when the ignition key is removed.

Wiring diagram

Inspection procedure

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    Starting off on a steep uphill
    ► Automatic transmission or continuously variable transmission 1 Make sure that the parking brake is set and shift the shift lever to D. 2 Gently depress the accelerator pedal. 3 Release the parking brake. ► Manual transmission 1 With the parking brake firmly set and the clutch pe ...

    Inspection procedure
    1 Check courtesy lamp switch Check the courtesy switch, as shown in the illustration and table. Standard: 2 Check wire harness (integration relay  door courtesy sw) Disconnect the integration relay and door courtesy connectors.  check the continuity between th ...

    Inspection procedure
    1 Check wire harness(dlc3 – airbag sensor assy center) Turn the ignition switch to the lock position.  disconnect the aribag sensor assy center connector.  measure the resistance according to the value(s) in the table below. Standard: 2 Check wire harness(cg of dl ...