TuningBot DTC Database · v4.37.15
9 manufacturer-specific interpretations across 8 manufacturers in the TuningBot DTC database.
ChevroletThe control module detected that the Accelerator pedal position (APP) sensor 1 voltage stayed above the expected range. This is the manufacturer-specific definition used by Chevrolet.
DodgeThe control module detected that the Starter motor control voltage stayed above the expected range. This is the manufacturer-specific definition used by Dodge.
FordThe control module detected a fault associated with the Cylinder #8 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
JeepThe control module detected a short circuit to battery voltage in the Starter control circuit 2 (PCM) circuit. This is the manufacturer-specific definition used by Jeep.
LexusThe control module detected improper operation of the Injector 2, cylinder 3 circuit. This is the manufacturer-specific definition used by Lexus.
NissanThe control module detected that the Heated oxygen sensor (HO2S), bank 1 responded more slowly than expected. This is the manufacturer-specific definition used by Nissan.
ToyotaThe control module detected a fault associated with the Port Injector Circuit Number 3 circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Toyota.
VAGThe control module detected a short circuit to battery voltage in the Fuel metering solenoid circuit. This is the manufacturer-specific definition used by Audi.
The control module detected a short circuit to battery voltage in the Fuel metering solenoid circuit. 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 detected that the Accelerator pedal position (APP) sensor 1 voltage stayed above the expected range. This is the manufacturer-specific definition used by Chevrolet.
P1278 is a manufacturer-specific code. In this database it is documented for: Chevrolet, Dodge, Ford, Jeep, Lexus, Nissan, Toyota, 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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