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Starter Signal Circuit [11/2021 - ]: Description

WARNING: This page is about a different car, the 2025 Lexus NX 350, 2024 Lexus NX 350, 2023 Lexus NX 350, and 2022 Lexus NX 350. However, it is still accessible from the selected car via links, so may be relevant.

While the engine is being cranked, current flows from the terminal STAR of the certification ECU (smart key ECU assembly) to terminal STA of the ECM (STA signal).

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