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Home >> Lexus >> 2007 >> SC 430 >> Repair and Diagnosis >> Engine Performance >> Engine Control System >> SFI System >> 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 throttle actuator.

When the power supply voltage (+BM) drops below 4 V for 0.8 seconds or more, the ECM interprets this as an open in the power supply circuit (+BM). The ECM illuminates the MIL and sets the DTC.

This monitor runs for 5 seconds (the first 5 seconds of engine idle) after the engine is started.