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Home >> Lexus >> 2007 >> RX 400h AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 296 (Engine Control System) >> SFI System >> DTC P0121 Throttle / Pedal Position Sensor / Switch "A" Circuit Range / Performance Problem >> Description
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DTC P0121 Throttle / Pedal Position Sensor / Switch "A" Circuit Range / Performance Problem: Description

WARNING: This page is about a different car, the 2008 Toyota FJ Cruiser. However, it is still accessible from the selected car via links, so may be relevant.

HINT:

This DTC relates to the Throttle Position (TP) sensor.

Refer to DTC P0120  .

DTC DETECTION CONDITIONS CHART

DTC No. DTC Detection Conditions Trouble Areas
P0121 Difference between VTA1 and VTA2 voltages less than 0.8 V, or more than 1.6 V for 2 seconds (1 trip detection logic)
  • TP sensor (built into throttle with motor body)