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Home >> Lexus >> 2007 >> SC 430 >> Repair and Diagnosis >> Engine Performance >> Engine Control System >> SFI System >> DTC P2111 Throttle Actuator Control System - Stuck Open; DTC P2112 Throttle Actuator Control System - Stuck Closed >> Description
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DTC P2111 Throttle Actuator Control System - Stuck Open; DTC P2112 Throttle Actuator Control System - Stuck Closed: Description

The throttle actuator is operated by the ECM, and it opens and closes the throttle valve using gears. The opening angle of the throttle valve is detected by the throttle position sensor, which is mounted on the throttle body. The throttle position sensor provides feedback to the ECM to control the throttle actuator and set the throttle valve angle in response to driver inputs.

HINT:

The Electronic Throttle Control System (ETCS) does not use a throttle cable.

DTC DETECTION CONDITIONS CHART

DTC No. DTC Detection Conditions Trouble Areas
P2111 ECM tries to close throttle valve but throttle position is stuck
(1 trip detection logic)
  • Throttle actuator circuit
  • Throttle actuator
  • Throttle body
  • Throttle valve
P2112 ECM tries to open throttle valve but throttle position is stuck
(1 trip detection logic)
  • Throttle actuator circuit
  • Throttle actuator
  • Throttle body
  • Throttle valve