The control module detected that the signal in the Mechanical Guard circuit stayed below the expected operating range. This is the manufacturer-specific definition used by Jaguar.
TuningBot DTC Database · v4.37.15
P1227 Jaguar - Mechanical Guard Circuit Low Input
Manufacturer-specific interpretation for Jaguar. All interpretations of P1227
What P1227 means
Related and nearby codes
How to read P1227
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 P1227
What does P1227 mean?
Mechanical Guard Circuit Low Input. The control module detected that the signal in the Mechanical Guard circuit stayed below the expected operating range. This is the manufacturer-specific definition used by Jaguar.
Is P1227 generic or manufacturer-specific?
P1227 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 P1227 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
