Starter Signal Circuit: Sienna

For starter signal circuit inspection and wiring diagram, see Fig 1-Fig 4 . For circuit identification, see ENGINE PERFORMANCE in appropriate SYSTEM WIRING DIAGRAMS article in ELECTRICAL. Before replacing ECM, check ECM connectors and ground circuits. See ENGINE CONTROL MODULE POWER & GROUND CIRCUITS  under COMPUTERIZED ENGINE CONTROLS.

Fig 1: Starter Signal Wiring Diagram (Sienna)

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Fig 2: Starter Signal Circuit Inspection Using Hand-Held Tester (Sienna)

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Fig 3: Starter Signal Circuit Inspection Using OBD II Scan Tool (Sienna)

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Fig 4: Locating Data Link Connector No. 3 (Sienna)

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