What does code P28E2 mean?

Q: What does code P28E2 mean?

Shift Motor Phase U-V-W Circuit/Open. P28E2 indicates that the transmission control module has detected an open circuit in the phase U, V, or W wiring that feeds the shift motor, which is the electric motor responsible for moving the shift forks inside an electrically shifted manual or dual-clutch transmission. The computer monitors current flow through each motor phase and sets this code when the expected electrical path is broken, meaning the motor cannot be commanded to engage or disengage a gear.

DTC codes / P28xx · Transmission / P28E2

P28E2Shift Motor Phase U-V-W Circuit/Open

P28E2 indicates that the transmission control module has detected an open circuit in the phase U, V, or W wiring that feeds the shift motor, which is the electric motor responsible for moving the shift forks inside an electrically shifted manual or dual-clutch transmission. The computer monitors current flow through each motor phase and sets this code when the expected electrical path is broken, meaning the motor cannot be commanded to engage or disengage a gear.

SystemPowertrain

Code typeGeneric (all makes)

SeverityHigh

Fix difficultyProfessional

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.