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Home >> Lexus >> 2005 >> SC 430 >> Repair and Diagnosis >> Engine Performance >> System >> SFI System - Diagnostics >> DTC P2118: Throttle Actuator Control Motor Current Range/Performance >> Monitor Description
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Monitor Description

The ECM monitors the battery supply voltage applied to the throttle actuator.

When the power supply voltage (+BM) drops below 4 V, the ECM interprets this as an open in the power supply circuit (+BM). The ECM illuminates MIL and sets a DTC.