The control module detected that the signal in the Engine Disconnect Clutch Pressure circuit stayed above the expected operating range.
TuningBot DTC Database · v4.37.15
P28F4 Engine Disconnect Clutch Pressure Sensor Circuit High
Generic (OBD-II) interpretation in the TuningBot DTC database.
What P28F4 means
Related and nearby codes
How to read P28F4
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 P28F4
What does P28F4 mean?
Engine Disconnect Clutch Pressure Sensor Circuit High. The control module detected that the signal in the Engine Disconnect Clutch Pressure circuit stayed above the expected operating range.
Is P28F4 generic or manufacturer-specific?
P28F4 is a generic OBD-II code: it has the same meaning on every make and model that follows the SAE standard.
Can TuningBot remove P28F4 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
