Error code
OBD2 P2771
OBD2P2771
Diagnostic Trouble Code· Standard OBD-II fault code read from the vehicle's onboard diagnostics.
What it means
Four Wheel Drive (4WD) Low Switch Circuit.
Severity
moderateCan drive but may experience issues with 4WD engagement.
Summary
P2771 indicates an issue with the wiring or circuit of the four-wheel drive low gear ratio switch, which is responsible for signaling the transmission to engage in low range when activated.
Common Causes
- Wiring malfunction
- Faulty low gear ratio switch
Fixes
- Inspect and repair or replace the faulty wiring or low gear ratio switch.
Not affiliated with OBD2. Answer summarized from the manufacturer's manual linked above; consult that source for the authoritative procedure.
More OBD2 codes
- P2700Transmission Friction Element 'A' Apply Time Range/Performance
- P2701Transmission Friction Element 'B' Apply Time Range/Performance
- P2702Transmission Friction Element 'C' Apply Time Range/Performance
- P2703Transmission Friction Element 'D' Apply Time Range/Performance
- P2704Transmission Friction Element 'E' Apply Time Range/Performance
- P2705Transmission Friction Element 'F' Apply Time Range/Performance
- P2706Shift Solenoid 'F'
- P2707Shift Solenoid 'F' Performance or Stuck Off
- P2708Shift Solenoid 'F' Stuck On
- P2709Shift Solenoid 'F' Electrical
- P2710Shift Solenoid 'F' Intermittent
- P2711Unexpected Mechanical Gear Disengagement