The control module detected that the signal in the Crankcase Ventilation Hose Connection circuit stayed above the expected operating range.
TuningBot DTC Database · v4.37.15
P04E3 Crankcase Ventilation Hose Connection Sensor Circuit High
Generic (OBD-II) interpretation in the TuningBot DTC database.
What P04E3 means
Related and nearby codes
How to read P04E3
Powertrain: engine, transmission and driveline systems.
Generic SAE-standard code: same meaning on every make.
Specific fault index within the subsystem.
Frequently asked questions about P04E3
What does P04E3 mean?
Crankcase Ventilation Hose Connection Sensor Circuit High. The control module detected that the signal in the Crankcase Ventilation Hose Connection circuit stayed above the expected operating range.
Is P04E3 generic or manufacturer-specific?
P04E3 is a generic OBD-II code: it has the same meaning on every make and model that follows the SAE standard.
Can TuningBot remove P04E3 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
Understand the system behind this code: Diagnostic Strategy and DTC Logic
