Powertrain: engine, transmission and driveline systems.
2
Generic SAE-standard code: same meaning on every make.
A39
Specific fault index within the subsystem.
Frequently asked questions about P2A39
What does P2A39 mean?
O2 Sensor Positive Current Control Circuit Low Bank 1 Sensor 3. The control module detected that the signal in the O2 Sensor Positive Current Control circuit stayed below the expected operating range.
Is P2A39 generic or manufacturer-specific?
P2A39 is a generic OBD-II code: it has the same meaning on every make and model that follows the SAE standard.
Can TuningBot remove P2A39 at file level?
If the fault logic lives in the ECU calibration, yes: our DTC Removal file service disables the specific fault entry and, where the ECU needs it, corrects the checksum too. Not sure whether your case qualifies? Request a free assessment and our engineers will check your ECU file.
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