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 Ford.
TuningBot DTC Database · v4.37.14
P1931 Fuel Additive Pump Control Circuit/Open
2 manufacturer-specific interpretations across 2 manufacturers in the TuningBot DTC database.
Ford
1 interpretation
Mazda
1 interpretationThe 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.
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 Ford.
Is P1931 generic or manufacturer-specific?
P1931 is a manufacturer-specific code. In this database it is documented for: Ford, 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 and, where the ECU needs it, corrects the checksum too. 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
