OBD-II code · Powertrain (generic, extended)
P2771 Four Wheel Drive (4WD) Low Switch Circuit
The 4WD-Low engagement switch circuit is faulty. The transmission and chassis controllers cannot tell whether the transfer case is in low range.
Is it safe to drive with P2771?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelySwitch contacts worn or corroded
- PossibleBroken wire to switch
Repair at a glance
- Difficulty
- Easy
- DIY friendly
- Often, with basic tools
- Typical labour
- 0.5–2 h
- Emissions test
- Usually unaffected
- Parts involved
- Four Wd Low Switch, Transfer Case, Wiring Harness
Related codes
- P276EElectric/Auxiliary Transmission Fluid Pump B Motor Current Low
- P276FElectric/Auxiliary Transmission Fluid Pump B Motor Current High
- P2770Torque Converter Clutch Solenoid Circuit High
- P2772Four Wheel Drive (4WD) Low Switch Circuit Range/Performance
- P2773Four Wheel Drive (4WD) Low Switch Circuit Low
- P2774Four Wheel Drive (4WD) Low Switch Circuit High
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.