HO2S Bank 1 Sensor 2 Rich Or High Voltage
Chrysler · emissions
Data confidence62%
The 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.
Recommended checks
Perform a full module scan
Review freeze-frame and occurrence data
Confirm the exact vehicle, ECU and software context
Powertrain: engine, transmission and driveline systems.
1
Manufacturer-defined range: the meaning can differ between brands.
138
Specific fault index within the subsystem.
Frequently asked questions about P1138
What does P1138 mean?
HO2S Bank 1 Sensor 2 Rich Or High Voltage. The 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.
Is P1138 generic or manufacturer-specific?
P1138 is a manufacturer-specific code. In this database it is documented for: Chrysler. The same number can mean something different on other brands.
Can TuningBot remove P1138 at file level?
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.
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