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P1231
Fuel Pump malfunction
Hyundai · fuel
Data confidence
62%
The control module detected improper operation of the Fuel Pump. This is the manufacturer-specific definition used by Hyundai.
TuningBot DTC Database · v4.37.15
P1231 Hyundai - Fuel Pump malfunction
Manufacturer-specific interpretation for Hyundai. All interpretations of P1231
What P1231 means
Related and nearby codes
How to read P1231
P
Powertrain: engine, transmission and driveline systems.
1
Manufacturer-defined range: the meaning can differ between brands.
231
Specific fault index within the subsystem.
Frequently asked questions about P1231
What does P1231 mean?
Fuel Pump malfunction. The control module detected improper operation of the Fuel Pump. This is the manufacturer-specific definition used by Hyundai.
Is P1231 generic or manufacturer-specific?
P1231 is a manufacturer-specific code. In this database it is documented for: Hyundai. The same number can mean something different on other brands.
Can TuningBot remove P1231 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