The control module detected a fault associated with the IFI Accelerator Pedal Position Sensor R252 circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Mercedes-Benz.
TuningBot DTC Database · v4.37.15
P1222 Mercedes-Benz - IFI Accelerator Pedal Position Sensor R252
Manufacturer-specific interpretation for Mercedes-Benz. All interpretations of P1222
What P1222 means
Related and nearby codes
How to read P1222
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 P1222
What does P1222 mean?
IFI Accelerator Pedal Position Sensor R252. The control module detected a fault associated with the IFI Accelerator Pedal Position Sensor R252 circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Mercedes-Benz.
Is P1222 generic or manufacturer-specific?
P1222 is a manufacturer-specific code. In this database it is documented for: Mercedes-Benz. The same number can mean something different on other brands.
Can TuningBot remove P1222 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
