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Home >> Lexus >> 2005 >> GX 470 >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> SFI System - Diagnostics >> DTC P0121: Throttle/Pedal Position Sensor/Switch "A" Circuit Range/Performance Problem >> Circuit Description
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Circuit Description

Refer to DTC P0120 in CIRCUIT DESCRIPTION  .

THROTTLE/PEDAL POSITION SENSOR/SWITCH "A" CIRCUIT RANGE/PERFORMANCE PROBLEM

DTC No. DTC Detection Condition Trouble Area
P0121 Difference between voltage output of VTA1 and VTA2 deviates from the threshold for 2.0 seconds. bull Throttle position sensor (built in throttle body)