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Home >> Toyota >> 2007 >> Sequoia SR5, 4WD >> Repair and Diagnosis >> Engine Performance >> Engine Control System (2UZ-FE) >> SFI System >> DTC P2121 Throttle / Pedal Position Sensor / Switch "D" Circuit Range / Performance >> Monitor Description
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Monitor Description

When the difference between the voltage outputs of VPA and VPA2 deviates from the standard range, the ECM determines that there is a malfunction in the APP sensor. The ECM then illuminates the MIL and sets the DTC.