TuningBot DTC Database · v4.37.15
8 manufacturer-specific interpretations across 7 manufacturers in the TuningBot DTC database.
ChevroletThe control module detected a fault associated with the HO2S Insufficient Switching Bank 1 Sensor 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 Chevrolet.
ChryslerThe control module detected a fault associated with the HO2S Insufficient Switching Bank 1 Sensor 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 Chrysler.
FordThe control module detected improper operation of the Water In Fuel Indicator circuit. This is the manufacturer-specific definition used by Ford.
MINIThe control module detected that the signal in the O2 Sensor Heater circuit stayed above the expected operating range. This is the manufacturer-specific definition used by MINI.
PorscheThe control module detected a fault associated with the Oxygen Sensing 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.
SubaruThe control module judged the Heated oxygen sensor (HO2S) 1, heater control behaviour implausible for the current operating conditions. This is the manufacturer-specific definition used by Subaru.
VAGThe control module detected that the air-fuel mixture stayed richer than the target despite full corrective control (Long term fuel trim, idling, Bank 2 - system). This is the manufacturer-specific definition used by Audi.
The control module detected that the air-fuel mixture stayed richer than the target despite full corrective control (Fuel Trim: Bank 2 (Add): System). This is the manufacturer-specific definition used by Volkswagen. Volkswagen Group tools also report it as fault code 17547. Documented across Volkswagen Group applications (Audi, SEAT and Škoda included).
Malfunction Indicator Light (MIL) active
Powertrain: engine, transmission and driveline systems.
Manufacturer-defined range: the meaning can differ between brands.
Specific fault index within the subsystem.
Diagnostic Trouble Code (8 interpretations). The control module detected a fault associated with the HO2S Insufficient Switching Bank 1 Sensor 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 Chevrolet.
P1139 is a manufacturer-specific code. In this database it is documented for: Chevrolet, Chrysler, Ford, MINI, Porsche, Subaru, 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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