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Home >> Toyota >> 2004 >> Matrix Base, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 700 (Power Door Lock - Diagnostics) >> Key Lock-In Prevention Function Does Not Work Properly (Manual Operation And Key-Linked Lock Are Available) >> Circuit Description

Circuit Description

WARNING: This page is about a different car, the 2004 Toyota Camry Solara. However, it is still accessible from the selected car via links, so may be relevant.

To prevent the key from being locked in the vehicle, the body ECU prevents doors from being locked by monitoring 2 switches: 1) the unlock warning switch, which turns ON when the key is inserted into the ignition key cylinder; and 2) the driver side courtesy lamp switch, which turns ON when the driver side door is opened.

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