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Home >> Lexus >> 2004 >> ES 330 >> Repair and Diagnosis >> External Pages >> Different car >> Section 302 (Engine Control System (SFI) - Diagnostics) >> DTC P0121: Throttle/Pedal Position Sensor/Switch "A" Circuit Range/Performance Problem >> Circuit Description
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Circuit Description

WARNING: This page is about a different car, the 2005 Toyota Sienna. However, it is still accessible from the selected car via links, so may be relevant.

Refer to DTC P0120  .

HINT:

This is the purpose of the "throttle position sensor".

DTC DETECTION CONDITION

DTC No. DTC Detection Condition Trouble Area
P0121 Condition (a) continues for 2.0 seconds:
(a) Difference between VTA1 and VTA2 deviates from the threshold
Throttle position sensor (built in throttle body)