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Home >> Lexus >> 2023 >> RC F Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - Circuit Tests (2 Of 3) >> SFI System >> Starter Signal Circuit [10/2015 - ] >> Description
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Starter Signal Circuit [10/2015 - ]: Description

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

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