Misfire Detection Monitor Not enabled
Ford · ignition
Data confidence80%
The control module detected a fault associated with the Misfire Detection Monitor Not enabled circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Ford.
Misfire detection monitor - not enabled
Mazda · ignition
Data confidence80%
The control module detected a fault associated with the Misfire detection monitor - not enabled circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Mazda.
Powertrain: engine, transmission and driveline systems.
1
Manufacturer-defined range: the meaning can differ between brands.
309
Specific fault index within the subsystem.
Frequently asked questions about P1309
What does P1309 mean?
Diagnostic Trouble Code (2 interpretations). The control module detected a fault associated with the Misfire Detection Monitor Not enabled circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Ford.
Is P1309 generic or manufacturer-specific?
P1309 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 P1309 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.
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