The control module detected a fault associated with the No Temperature Rise Seen From Intake Air Heater circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Dodge.
TuningBot DTC Database · v4.37.15
P1291 Dodge - No Temperature Rise Seen From Intake Air Heater
Manufacturer-specific interpretation for Dodge. All interpretations of P1291
What P1291 means
Related and nearby codes
How to read P1291
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 P1291
What does P1291 mean?
No Temperature Rise Seen From Intake Air Heater. The control module detected a fault associated with the No Temperature Rise Seen From Intake Air Heater circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Dodge.
Is P1291 generic or manufacturer-specific?
P1291 is a manufacturer-specific code. In this database it is documented for: Dodge. The same number can mean something different on other brands.
Can TuningBot remove P1291 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
