What does code P2773 mean?

Q: What does code P2773 mean?

Four Wheel Drive (4WD) Low Switch Circuit Low. P2773 means the four-wheel-drive (4WD) control module has detected a low-voltage condition on the input circuit from the 4WD low range switch, indicating the switch or its wiring is shorted to ground or the signal is stuck low. The module expects a specific voltage when the transfer case is in 4WD low, and this code sets when that voltage stays below the acceptable threshold.

DTC codes / P27xx · Transmission / P2773

P2773Four Wheel Drive (4WD) Low Switch Circuit Low

P2773 means the four-wheel-drive (4WD) control module has detected a low-voltage condition on the input circuit from the 4WD low range switch, indicating the switch or its wiring is shorted to ground or the signal is stuck low. The module expects a specific voltage when the transfer case is in 4WD low, and this code sets when that voltage stays below the acceptable threshold.

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.