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TuningBot DTC Database · v4.37.15

P3478 Cylinder 10 Exhaust Valve Control Circuit Performance

Generic (OBD-II) interpretation in the TuningBot DTC database.

P · PowertrainEngineOBD2

What P3478 means

P3478
Cylinder 10 Exhaust Valve Control Circuit Performance Generic · engine Data confidence 85%

The control module judged the Cylinder 10 Exhaust Valve Control behaviour implausible for the current operating conditions.

Related and nearby codes

How to read P3478

P

Powertrain: engine, transmission and driveline systems.

3

Generic SAE-standard code: same meaning on every make.

478

Specific fault index within the subsystem.

Frequently asked questions about P3478

What does P3478 mean?

Cylinder 10 Exhaust Valve Control Circuit Performance. The control module judged the Cylinder 10 Exhaust Valve Control behaviour implausible for the current operating conditions.

Is P3478 generic or manufacturer-specific?

P3478 is a generic OBD-II code: it has the same meaning on every make and model that follows the SAE standard.

Can TuningBot remove P3478 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.

Other file services

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