The control module judged the Pedal Demand Sensor B signal implausible: it stayed inside electrical limits but did not match the value expected for the current operating conditions. This is the manufacturer-specific definition used by Jaguar.
TuningBot DTC Database · v4.37.15
P1221 Jaguar - Pedal Demand Sensor B Circuit Range Performance
Manufacturer-specific interpretation for Jaguar. All interpretations of P1221
What P1221 means
Related and nearby codes
How to read P1221
Powertrain: engine, transmission and driveline systems.
Manufacturer-defined range: the meaning can differ between brands.
Specific fault index within the subsystem.
Frequently asked questions about P1221
What does P1221 mean?
Pedal Demand Sensor B Circuit Range Performance. The control module judged the Pedal Demand Sensor B signal implausible: it stayed inside electrical limits but did not match the value expected for the current operating conditions. This is the manufacturer-specific definition used by Jaguar.
Is P1221 generic or manufacturer-specific?
P1221 is a manufacturer-specific code. In this database it is documented for: Jaguar. The same number can mean something different on other brands.
Can TuningBot remove P1221 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.
Other file services
Understand the system behind this code: Diagnostic Strategy and DTC Logic
