DTC P2121: Throttle / Pedal Position Sensor / Switch "D" Circuit Range / Performance [10/2017 - 12/2021]: Description

Refer to DTC P2120.

DTC No.	Detection Item	DTC Detection Condition	Trouble Area	MIL	Memory
P2121	Throttle / Pedal Position Sensor / Switch "D" Circuit Range / Performance	Either of following conditions 1 or 2 met for 0.5 seconds (1 trip detection logic) 1. Difference between VPA and VPA2 is less than 0.4 V, or more than 1.2 V. (learned value of accelerator off position) 2. Difference between VPA and VPA2 is greater than or equal to the specified value.	Accelerator pedal sensor assembly ECM	Comes on	DTC stored