TuningBot DTC Database · v4.37.15
9 manufacturer-specific interpretations across 8 manufacturers in the TuningBot DTC database.
ChryslerThe control module judged the APP Sensor 1 - 2 behaviour implausible for the current operating conditions. This is the manufacturer-specific definition used by Chrysler.
DodgeThe control module detected that the Radiator Temp Sensor Volts value was below the expected limit. This is the manufacturer-specific definition used by Dodge.
FordThe control module detected a fault associated with the Cylinder #1 High To Low Side Open 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.
Wiring open circuit
HondaThe control module detected a fault associated with the Accelerator pedal position (APP) sensor 1/2 - signal variation circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Honda.
MazdaThe control module detected a fault associated with the Cylinder #1 High To Low Side Open 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.
MINIThe control module detected a fault associated with the Ambient Air Pressure Sensor Electrical circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by MINI.
NissanThe control module detected that the Heated oxygen sensor (HO2S), bank 1 voltage stayed below the expected range. This is the manufacturer-specific definition used by Nissan.
VAGThe control module determined that the Injector 4 - control adaptation reached its permissible limit. This is the manufacturer-specific definition used by Audi.
The control module determined that the Injector 4 - control adaptation reached its permissible limit. This is the manufacturer-specific definition used by Volkswagen.
Powertrain: engine, transmission and driveline systems.
Manufacturer-defined range: the meaning can differ between brands.
Specific fault index within the subsystem.
Diagnostic Trouble Code (9 interpretations). The control module judged the APP Sensor 1 - 2 behaviour implausible for the current operating conditions. This is the manufacturer-specific definition used by Chrysler.
P1271 is a manufacturer-specific code. In this database it is documented for: Chrysler, Dodge, Ford, Honda, Mazda, MINI, Nissan, VAG. The same number can mean something different on other brands.
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.
Understand the system behind this code: Oxygen Sensors (Lambda)
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