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Starter Signal Circuit [09/2022 - 09/2024]: Description

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

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

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