Rear Parking Sensor Circuit
2016-2018 Lincoln MKX 3.7L V6 🇨🇦
Description
Malfunction in the rear parking/proximity sensor system.
Symptoms
- Rear parking sensors not working
- Constant false alarm beeping when reversing
- Parking display shows error
- Sensor reads incorrectly
Common Causes
- Faulty ultrasonic sensor
- Sensor obstructed by dirt or snow
- Wiring damage from trailer hitch installation
- Module failure
- Bumper replacement with incorrect sensor gaps
Diagnostic Steps
- Clean rear sensors thoroughly
- Test each sensor with scan tool
- Inspect wiring (especially if trailer hitch installed)
- Check sensor seating in bumper
- Test parking assist module
Repair Notes
Replace faulty sensor. Clean sensors. Check for wiring damage from aftermarket trailer hitch.
Related Codes
Other Body Codes
- B0001Driver Frontal Stage 1 Deployment Control
- B0001Driver Frontal Stage 1 Deployment Control
- B0002Driver Frontal Stage 2 Deployment Control
- B0002Driver Frontal Stage 2 Deployment Control
- B0003Passenger Frontal Stage 1 Deployment Control
- B0003Passenger Frontal Stage 1 Deployment Control
- B0004Passenger Frontal Stage 2 Deployment Control
- B0004Passenger Frontal Stage 2 Deployment Control
- B0005Driver Knee Airbag Deployment Circuit
- B0005Driver Knee Airbag Deployment Circuit
B2201 on Other Vehicles
Lincoln Aviator
2003-2005 4.6L V8
Lincoln Aviator
2003-2005 4.6L V8 DOHC
Lincoln Aviator
2020-2024 3.0L Twin-Turbo V6
Lincoln Aviator
2020-2024 3.0L V6 Twin Turbo
Lincoln Aviator Grand Touring
2020-2024 3.0L Twin Turbo V6 PHEV
Lincoln Aviator Grand Touring
2020-2024 3.0L Twin-Turbo V6 Hybrid
Lincoln Aviator Grand Touring
2020-2024 3.0L V6 Twin Turbo Hybrid
Lincoln Continental
2017-2020 2.7L EcoBoost V6
Common Questions
What does code B2201 mean on a 2016-2018 Lincoln MKX?
B2201 stands for "Rear Parking Sensor Circuit". Malfunction in the rear parking/proximity sensor system.
What are the symptoms of B2201 on a Lincoln MKX?
Common symptoms of B2201 include: Rear parking sensors not working, Constant false alarm beeping when reversing, Parking display shows error, Sensor reads incorrectly.
What causes B2201 on a 2016-2018 Lincoln MKX?
Common causes of B2201 include: Faulty ultrasonic sensor, Sensor obstructed by dirt or snow, Wiring damage from trailer hitch installation, Module failure, Bumper replacement with incorrect sensor gaps.