Powertrain: engine, transmission and driveline systems.
0
Generic SAE-standard code: same meaning on every make.
139
Specific fault index within the subsystem.
Frequently asked questions about P0139
What does P0139 mean?
O2 Sensor Circuit Slow Response (Bank 1 Sensor 2). The control module detected that the O2 Sensor responded more slowly than expected.
Is P0139 generic or manufacturer-specific?
P0139 is a generic OBD-II code: it has the same meaning on every make and model that follows the SAE standard.
Can TuningBot remove P0139 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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