TuningBot DTC Database · v4.37.15
12 manufacturer-specific interpretations across 11 manufacturers in the TuningBot DTC database.
ChevroletThe control module detected that the Heated oxygen sensor (HO2S) 2, bank 1 voltage stayed above the expected range. This is the manufacturer-specific definition used by Chevrolet.
ChryslerThe control module detected a fault associated with the HO2S Bank 1 Sensor 2 Rich Or High Voltage 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 a fault associated with the Lack Of HO2S Switches Bank 1 Sensor 2 Rich 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.
Land RoverThe control module detected a fault associated with the Heated oxygen sensor (HO2S) 2 - cylinders 1, 2, 3 - mixture rich circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Land Rover.
Mercedes-BenzThe control module judged the Heated oxygen sensor (HO2S) 2 behaviour implausible for the current operating conditions. This is the manufacturer-specific definition used by Mercedes-Benz.
MINIThe control module detected that the signal in the O2 Sensor Heater circuit stayed below the expected operating range. This is the manufacturer-specific definition used by MINI.
NissanThe control module detected improper operation of the Intake manifold air control solenoid circuit. This is the manufacturer-specific definition used by Nissan.
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.
SuzukiThe control module detected that the signal in the HO2S circuit stayed above the expected operating range. This is the manufacturer-specific definition used by Suzuki.
VAGThe control module detected that the air-fuel mixture stayed leaner 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 leaner than the target despite full corrective control (Long term fuel trim, idling, system). This is the manufacturer-specific definition used by Volkswagen.
VolvoThe control module detected a fault associated with the Heated oxygen sensor (HO2S) 1, bank 2 - rich circuit or function; the stored code identifies the affected component rather than a single failure mode. 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 (12 interpretations). The control module detected that the Heated oxygen sensor (HO2S) 2, bank 1 voltage stayed above the expected range. This is the manufacturer-specific definition used by Chevrolet.
P1138 is a manufacturer-specific code. In this database it is documented for: Chevrolet, Chrysler, Ford, Land Rover, Mercedes-Benz, MINI, Nissan, Porsche, Suzuki, 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: Oxygen Sensors (Lambda)
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