The control module detected an interruption (open circuit) in the Fuel Additive Pump Control circuit, so the expected electrical continuity was not present. This is the manufacturer-specific definition used by Mazda.
TuningBot DTC Database · v4.37.15
P1931 Mazda - Fuel Additive Pump Control Circuit/Open
Manufacturer-specific interpretation for Mazda. All interpretations of P1931
What P1931 means
Related and nearby codes
How to read P1931
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 P1931
What does P1931 mean?
Fuel Additive Pump Control Circuit/Open. The control module detected an interruption (open circuit) in the Fuel Additive Pump Control circuit, so the expected electrical continuity was not present. This is the manufacturer-specific definition used by Mazda.
Is P1931 generic or manufacturer-specific?
P1931 is a manufacturer-specific code. In this database it is documented for: Mazda. The same number can mean something different on other brands.
Can TuningBot remove P1931 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
