LEMON Manuals: Even more car manuals for everyone
Home >> Lexus >> 2007 >> RX 400h AWD >> Repair and Diagnosis >> Engine Performance >> Engine Control System >> SFI System >> DTC P2102 Throttle Actuator Control Motor Circuit Low; DTC P2103 Throttle Actuator Control Motor Circuit High >> System Description

System Description

The throttle actuator is operated by the ECM (Included in HV control ECU) 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 CHART

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
  • HV control ECU
P2103 Hybrid IC diagnosis signal failure (0.6 seconds) (1 trip detection logic)
  • Short in throttle actuator circuit
  • Throttle actuator
  • Throttle valve
  • Throttle body assembly
  • HV control ECU
scientia non olet · About LEMON Manuals