Accelerator pedal position (APP) sensor - range/performance problem
Lexus · engine
Data confidence80%
The control module judged the Accelerator pedal position (APP) behaviour implausible for the current operating conditions. This is the manufacturer-specific definition used by Lexus.
Powertrain: engine, transmission and driveline systems.
1
Manufacturer-defined range: the meaning can differ between brands.
121
Specific fault index within the subsystem.
Frequently asked questions about P1121
What does P1121 mean?
Accelerator pedal position (APP) sensor - range/performance problem. The control module judged the Accelerator pedal position (APP) behaviour implausible for the current operating conditions. This is the manufacturer-specific definition used by Lexus.
Is P1121 generic or manufacturer-specific?
P1121 is a manufacturer-specific code. In this database it is documented for: Lexus. The same number can mean something different on other brands.
Can TuningBot remove P1121 at file level?
If the fault logic lives in the ECU calibration, yes: our DTC Removal file service disables the specific fault entry. Checksum correction is not included: it is a separate, optional service. Not sure whether your case qualifies? Request a free assessment and our engineers will check your ECU file.
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