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Wiring Diagrams

NOTE: When consulting wiring diagram, it may be necessary to perform pin voltage test for appropriate electronic control unit to ensure proper voltage or input signal exists to verify wiring circuit. See PIN VOLTAGE TESTS .
NOTE: For additional wiring for power supply circuit, see POWER DISTRIBUTION article in WIRING DIAGRAMS. For power door lock system wiring, see KEYLESS ENTRY SYSTEMS - SIENNA article or POWER DOOR LOCKS - TRUCKS (EXCEPT SEQUOIA) article. For additional wiring for interior lighting, see ILLUMINATION/INTERIOR LIGHTS article. For headlight system wiring diagrams or automatic light control system, see DAYTIME RUNNING LIGHTS article. For taillight system wiring diagram, see EXTERIOR LIGHTS article. For horn wiring diagram, see WIRING DIAGRAMS in STEERING COLUMN SWITCHES - TRUCKS article.
Fig 1: Body Control System Wiring Diagram (With Power Door Locks - Sienna)
Fig 2: Body Control System Wiring Diagram (Without Power Door Locks - Sienna)