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Sienna CE
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Repair and Diagnosis (Single Page)
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Engine Performance
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Engine Control System - DTC P0120/P0122/P0123/P0220/P0222/P0223/P2135 - P0430
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DTC P0121 Throttle / Pedal Position Sensor / Switch "A" Circuit Range / Performance Problem
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Typical Malfunction Thresholds
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Typical Malfunction Thresholds
TYPICAL MALFUNCTION THRESHOLDS CONDITIONS
Difference of TP sensor voltage between VTA1 and VTA2 x 0.8
Less than 0.8 V, or more than 1.6 V