Mass Air Flow Circuit Intermittent Low
Chrysler · engine
Data confidence62%
The control module detected an unstable or intermittent signal in the Mass Air Flow circuit. This is the manufacturer-specific definition used by Chrysler.
Recommended checks
Perform a full module scan
Review freeze-frame and occurrence data
Confirm the exact vehicle, ECU and software context
Powertrain: engine, transmission and driveline systems.
1
Manufacturer-defined range: the meaning can differ between brands.
212
Specific fault index within the subsystem.
Frequently asked questions about P1212
What does P1212 mean?
Mass Air Flow Circuit Intermittent Low. The control module detected an unstable or intermittent signal in the Mass Air Flow circuit. This is the manufacturer-specific definition used by Chrysler.
Is P1212 generic or manufacturer-specific?
P1212 is a manufacturer-specific code. In this database it is documented for: Chrysler. The same number can mean something different on other brands.
Can TuningBot remove P1212 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.