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Home >> Lexus >> 2006 >> GX 470 >> Repair and Diagnosis >> Engine Performance >> System >> SFI System - Diagnostics >> DTC P2121 Throttle/Pedal Position Sensor/Switch "D" Circuit Range/Performance >> Circuit Description

Circuit Description

Refer to DTC P2120  .

THROTTLE/PEDAL POSITION SENSOR/SWITCH "D" CIRCUIT RANGE/PERFORMANCE

DTC No. DTC Detection Condition Trouble Area
P2121 Conditions (a) and (b) continue for 0.5 second:
  1. Difference between VPA1 and VPA2 deviates from the standard
  2. IDL is OFF
  • Accelerator pedal position sensor circuit
  • Accelerator pedal position sensor
  • ECM