Generic (OBD-II) interpretation in the TuningBot DTC database.
P · PowertrainEmissionsOBD2
What P0479 means
P0479
Exhaust Pressure Control Valve Intermittent
Generic · emissions
Data confidence90%
The control module detected a fault associated with the Exhaust Pressure Control Valve Intermittent circuit or function; the stored code identifies the affected component rather than a single failure mode.
Powertrain: engine, transmission and driveline systems.
0
Generic SAE-standard code: same meaning on every make.
479
Specific fault index within the subsystem.
Frequently asked questions about P0479
What does P0479 mean?
Exhaust Pressure Control Valve Intermittent. The control module detected a fault associated with the Exhaust Pressure Control Valve Intermittent circuit or function; the stored code identifies the affected component rather than a single failure mode.
Is P0479 generic or manufacturer-specific?
P0479 is a generic OBD-II code: it has the same meaning on every make and model that follows the SAE standard.
Can TuningBot remove P0479 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.