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Home >> Toyota >> 2015 >> 4Runner TRD Pro >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System - (Diagnostic Codes (P106B-P2121)) >> SFI System >> DTC P2121: Throttle / Pedal Position Sensor / Switch "D" Circuit Range / Performance [08/2014 - ] >> Description
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DTC P2121: Throttle / Pedal Position Sensor / Switch "D" Circuit Range / Performance [08/2014 - ]: Description

Refer to DTC P2120. Refer to DESCRIPTION .

DTC No. DTC Detection Condition Trouble Area
P2121 Either of the following conditions 1 or 2 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
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