The control module detected a fault associated with the Ignition Diagnostic Monitor Pulsewidth Not Defined 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.
TuningBot DTC Database · v4.37.15
P1357 Ford - Ignition Diagnostic Monitor Pulsewidth Not Defined
Manufacturer-specific interpretation for Ford. All interpretations of P1357
What P1357 means
Related and nearby codes
How to read P1357
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 P1357
What does P1357 mean?
Ignition Diagnostic Monitor Pulsewidth Not Defined. The control module detected a fault associated with the Ignition Diagnostic Monitor Pulsewidth Not Defined 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 P1357 generic or manufacturer-specific?
P1357 is a manufacturer-specific code. In this database it is documented for: Ford. The same number can mean something different on other brands.
Can TuningBot remove P1357 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
