Powertrain
Definition only
Lights the check engine lamp
P2771: Four Wheel Drive (4WD) Low Switch Circuit
Standardized SAE J2012 code · P27xx — Transmission
What does P2771 mean?
The 4WD-Low engagement switch circuit is faulty. The transmission and chassis controllers cannot tell whether the transfer case is in low range.
The code tells you which monitor failed, not which part is broken. Test before replacing parts.
Common causes
- High Switch contacts worn or corroded
- Medium Broken wire to switch
Likelihood is a general estimate across vehicles; your make and model may differ.
Add your car to see reports of P2771 on the same make and model first.
P2771 in the community
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