The control module detected a fault associated with the No Temp. Rise Seen From Intake Heaters Conditions circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Chrysler.
TuningBot DTC Database · v4.37.15
P1291 Diagnostic Trouble Code (6 interpretations)
6 manufacturer-specific interpretations across 5 manufacturers in the TuningBot DTC database.
Chrysler
1 interpretation
Dodge
1 interpretationThe 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.
Ford
1 interpretationThe control module detected a fault associated with the Injector High Side Short To GND Or VBATT Bank 1 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.
Possible causes
- High side short circuit to ground/positive
- injector(s)
- injector control module
Jeep
1 interpretationThe control module detected a fault associated with the No Temp Rise Seen From Fuel Heaters circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Jeep.
Recommended checks
- Perform a full module scan
- Review freeze-frame and occurrence data
- Confirm the exact vehicle, ECU and software context
- Inspect relevant wiring and connectors
- Check applicable OEM service information
VAG
2 interpretationsThe control module detected that the Engine coolant temperature (ECT) sensor, ECM controlled cooling system signal stayed above the expected range. This is the manufacturer-specific definition used by Audi.
Possible causes
- Wiring
- ECT sensor
The control module detected that the Engine coolant temperature (ECT) sensor, ECM controlled cooling system signal stayed above the expected range. This is the manufacturer-specific definition used by Volkswagen.
Possible causes
- Wiring
- ECT sensor
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?
Diagnostic Trouble Code (6 interpretations). The control module detected a fault associated with the No Temp. Rise Seen From Intake Heaters Conditions circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Chrysler.
Is P1291 generic or manufacturer-specific?
P1291 is a manufacturer-specific code. In this database it is documented for: Chrysler, Dodge, Ford, Jeep, VAG. 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
