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Home >> Lexus >> 2007 >> IS 250 AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (4GR-FSE) - DTC P0607 - DTC P2A03, DTC U0101 >> DTC P2102 Throttle Actuator Control Motor Circuit Low; DTC P2103 Throttle Actuator Control Motor Circuit High >> System Description
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System Description

The throttle actuator is operated by the ECM and opens and closes the throttle valve using gears.

The opening angle of the throttle valve is detected by the Throttle Position (TP) sensor, which is mounted on the throttle body. The TP sensor provides feedback to the ECM. This feedback allows the ECM to appropriately control the throttle actuator and monitor the throttle opening angle as the ECM responds to driver inputs.

HINT:

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

DTC DETECTION CONDITION AND TROUBLE AREA

DTC No. DTC Detection Condition Trouble Area
P2102 Conditions (a) and (b) continue for 2.0 seconds (1 trip detection logic):
  1. Throttle actuator duty ratio 80 % or more
  2. Throttle actuator current 0.5 A or less
  • Open in throttle actuator circuit
  • Throttle actuator
  • ECM
P2103 Either of following conditions is met:
  • Hybrid IC diagnosis signal fail
  • Hybrid IC current limiter port fail
  • Open in throttle actuator circuit
  • Throttle actuator
  • ECM
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