System Diagram

WARNING: This page is about a different car, the 2004 Lexus LS 430. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: System Diagram (W/O Smart Key System)

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Fig 2: Key Reminder Warning System Circuit Description Table (W/O Smart Key System)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Fig 3: System Diagram (W/ Smart Key System)

Fig 4: Key Reminder Warning System Circuit Description Table (W/ Smart Key System)