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Home >> Lexus >> 2004 >> SC 430 >> Repair and Diagnosis >> Engine Performance >> System >> SFI System - Diagnosis >> DTC P2118: Throttle Actuator Control Motor Current Range/Performance >> Monitor Description

Monitor Description

The ECM monitors the battery supply voltage applied to the throttle actuator (motor). 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 Malfunction Indicator Light (MIL) and sets a DTC.

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