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Home >> Toyota >> 2005 >> ECHO 2D Sedan, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine - Diagnostics >> Circuit Inspection >> DTC P0121: Throttle/Pedal Position Sensor/Switch "A" Circuit Range/Performance Problem >> Circuit Description
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Circuit Description

Refer to  DTC P0120 Throttle/Pedal Position Sensor/Switch "A" Circuit, DTC P0122 Throttle/Pedal Position Sensor/Switch "A" Circuit Low Input, DTC P0123 Throttle/Pedal Position Sensor/Switch "A" Circuit High Input  . 

MONITOR STRATEGY

DTC No. DTC Detection Condition Trouble Area
PO121 After the vehicle speed has exceeded 30 km/h (19 mph) once, when output voltage of throttle position sensor which indicates "closed throttle position" deviates from applicable range (4 times or more) Throttle position sensor (built in throttle body)
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