DTC P2121: Throttle / Pedal Position Sensor / Switch "D" Circuit Range / Performance [06/2014 - 08/2015]: Description

WARNING: This page is about a different car, the 2015 Lexus IS 250 and 2014 Lexus IS 250. However, it is still accessible from the selected car via links, so may be relevant.

Refer to DTC P2120.

Refer to DESCRIPTION

DTC No.	Detection Item	DTC Detection Condition	Trouble Area	MIL	Memory
P2121	Throttle / Pedal Position Sensor / Switch "D" Circuit Range / Performance	Either of the following conditions is met for 0.5 seconds (1 trip detection logic): 1. Difference between VPA and VPA2 is less than 0.4 V, or higher 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