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Home >> Toyota >> 2021 >> Corolla LE >> Repair and Diagnosis >> External Pages >> Different car >> Section 73 (Engine Control System (2ZR-FE) - Diagnostics - Circuit Tests (Model Code: ZRE172)) >> SFI System >> Circuit Tests >> Starter Signal Circuit [08/2016 - ] >> Description
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Starter Signal Circuit [08/2016 - ]: Description

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2019 Toyota Corolla, 2018 Toyota Corolla, 2017 Toyota Corolla, 2016 Toyota Corolla, and 2015 Toyota 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 ST2 of the ignition switch assembly*1 or terminal STAR of the certification ECU (smart key ECU assembly)*2 to the park/neutral position switch assembly*3 or clutch start switch assembly*4 and to terminal STA of the ECM (STA signal).

*1: w/o smart key system.

*2: w/ smart key system.

*3: for CVT models.

*4: for M/T models.

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