TuningBot DTC Database · v4.37.15
10 manufacturer-specific interpretations across 9 manufacturers in the TuningBot DTC database.
ChevroletThe control module detected improper operation of the Injector 6 circuit. This is the manufacturer-specific definition used by Chevrolet.
FordThe control module registered the fault condition described as "Fuel Pump Secondary Circuit Fault". This is the manufacturer-specific definition used by Ford.
JaguarThe control module detected improper operation of the VSV 3 circuit. This is the manufacturer-specific definition used by Jaguar.
MazdaThe control module detected a fault associated with the Fuel Pump Driver Module Disabled or Off Line 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.
MitsubishiThe control module detected improper operation of the Mass air flow (MAF). This is the manufacturer-specific definition used by Mitsubishi.
NissanThe control module detected improper operation of the Throttle control motor. This is the manufacturer-specific definition used by Nissan.
Throttle control motor
PorscheThe control module detected a fault associated with the Fuel Injector Cylinder 2 circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Porsche.
VAGThe control module detected an interruption (open circuit) in the Injector 2 circuit, so the expected electrical continuity was not present. This is the manufacturer-specific definition used by Audi.
The control module detected an interruption (open circuit) in the Fuel Injector for Cylinder 2 (N31) circuit, so the expected electrical continuity was not present. This is the manufacturer-specific definition used by Volkswagen. Volkswagen Group tools also report it as fault code 17646. Documented across Volkswagen Group applications (Audi, SEAT and Škoda included).
VolvoThe control module detected improper operation of the Turbocharger (TC) boost pressure sensor - boost control. This is the manufacturer-specific definition used by Volvo.
Powertrain: engine, transmission and driveline systems.
Manufacturer-defined range: the meaning can differ between brands.
Specific fault index within the subsystem.
Diagnostic Trouble Code (10 interpretations). The control module detected improper operation of the Injector 6 circuit. This is the manufacturer-specific definition used by Chevrolet.
P1238 is a manufacturer-specific code. In this database it is documented for: Chevrolet, Ford, Jaguar, Mazda, Mitsubishi, Nissan, Porsche, VAG, Volvo. 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: MAF Sensor
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