DTC P0121 Throttle / Pedal Position Sensor / Switch "A" Circuit Range / Performance Problem: Description
WARNING: This page is about a different car, the 2008 Lexus IS F. However, it is still accessible from the selected car via links, so may be relevant.
Refer to DTC P0120
HINT.
This DTC relates to the throttle position sensor
DTC DETECTION CONDITION CHART
| DTC No. | DTC Detection Condition | Trouble Area |
|---|---|---|
| P0121 | Difference between VTA and VTA2 voltages less than 0 8 V, or more than 1 6 V for 2 seconds (1 trip detection logic) | Throttle position sensor (built into throttle body) |