Powertrain: engine, transmission and driveline systems.
2
Generic SAE-standard code: same meaning on every make.
420
Specific fault index within the subsystem.
Frequently asked questions about P2420
What does P2420 mean?
Evaporative emission (EVAP) switching valve - circuit high. The control module detected that the signal in the Evaporative emission (EVAP) switching valve circuit stayed above the expected operating range.
Is P2420 generic or manufacturer-specific?
P2420 is a generic OBD-II code: it has the same meaning on every make and model that follows the SAE standard.
Can TuningBot remove P2420 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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