Powertrain: engine, transmission and driveline systems.
0
Generic SAE-standard code: same meaning on every make.
499
Specific fault index within the subsystem.
Frequently asked questions about P0499
What does P0499 mean?
Evaporative emission (EVAP) system, vent control - circuit high. The control module detected that the signal in the Evaporative emission (EVAP) system, vent control circuit stayed above the expected operating range.
Is P0499 generic or manufacturer-specific?
P0499 is a generic OBD-II code: it has the same meaning on every make and model that follows the SAE standard.
Can TuningBot remove P0499 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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