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Home >> Toyota >> 2016 >> Highlander XLE, AWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 38 (SFI System [1AR-FE] - Diagnostic Codes - (Except Hybrid) (4 Of 8)) >> SFI System >> DTC P2121: Throttle / Pedal Position Sensor / Switch "D" Circuit Range / Performance [12/2013 - 11/2016] >> Typical Malfunction Thresholds

Typical Malfunction Thresholds

WARNING: This page is about a different variant/trim than selected.
CASE 1

Difference between VPA voltage and VPA2 voltage (learned value of accelerator off position) Less than 0.4 V, or higher than 1.2 V
CASE 2

All of the following conditions are met -
[(VPA voltage - Learned VPA accelerator off position voltage) - (VPA2 voltage - Learned VPA2 accelerator off position voltage)] Higher than 0.165 V (varies with accelerator position)
VPA2 voltage Less than 4.84 V
Either of the following conditions met a or b
a) VPA voltage - Learned VPA accelerator off position voltage 0.04 V or higher
b) VPA2 voltage - Learned VPA2 accelerator off position voltage 0.04 V or higher