What does code P2864 mean?

Q: What does code P2864 mean?

Shift Fork E Position Circuit Range/Performance. P2864 indicates that the transmission control module (TCM) has detected an out-of-range or performance fault in the electrical circuit for shift fork E, which is used in dual-clutch or automated manual transmissions to engage a specific gear. The TCM monitors the fork's position sensor and actuator command, and it sets this code when the measured position does not match the commanded position within the expected time or voltage window.

DTC codes / P28xx · Transmission / P2864

P2864Shift Fork E Position Circuit Range/Performance

P2864 indicates that the transmission control module (TCM) has detected an out-of-range or performance fault in the electrical circuit for shift fork E, which is used in dual-clutch or automated manual transmissions to engage a specific gear. The TCM monitors the fork's position sensor and actuator command, and it sets this code when the measured position does not match the commanded position within the expected time or voltage window.

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.