Powertrain: engine, transmission and driveline systems.
2
Generic SAE-standard code: same meaning on every make.
204
Specific fault index within the subsystem.
Frequently asked questions about P2204
What does P2204 mean?
NOx Sensor Circuit Intermittent Bank 1 Sensor 1. The control module detected an unstable or intermittent signal in the NOx circuit.
Is P2204 generic or manufacturer-specific?
P2204 is a generic OBD-II code: it has the same meaning on every make and model that follows the SAE standard.
Can TuningBot remove P2204 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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