What does code P28DE mean?

Q: What does code P28DE mean?

Clutch B Pressure Sensor Circuit High. P28DE means the powertrain control module (PCM) has detected a voltage signal from the Clutch B pressure sensor circuit that is higher than the expected range for the current operating conditions. The sensor is used on vehicles with an automated manual or dual-clutch transmission to report hydraulic pressure at clutch B, and the PCM flags this code when the signal wire reads near reference voltage instead of a valid pressure-proportional voltage.

DTC codes / P28xx · Transmission / P28DE

P28DEClutch B Pressure Sensor Circuit High

P28DE means the powertrain control module (PCM) has detected a voltage signal from the Clutch B pressure sensor circuit that is higher than the expected range for the current operating conditions. The sensor is used on vehicles with an automated manual or dual-clutch transmission to report hydraulic pressure at clutch B, and the PCM flags this code when the signal wire reads near reference voltage instead of a valid pressure-proportional voltage.

SystemPowertrain

Code typeGeneric (all makes)

SeverityMedium

Fix difficultyIntermediate

AreaTransmission

Guidance is general and written for all OBD-II vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.