B0111low severityBody
Keyless Entry Receiver Circuit
on 2021 Lincoln Aviator 3.0L V6 Twin Turbo · AWD
What this code means
Malfunction in the keyless entry receiver module or its circuit. The receiver processes RF signals from the key fob.
Symptoms
- Remote lock/unlock not working
- No response from any key fob
- Physical key still works
Common causes
- Faulty receiver module
- Antenna disconnected
- Wiring damage to receiver
- Receiver power supply issue
Diagnostic steps
- Test receiver power and ground
- Check antenna connection
- Test with key fob held near receiver
- Scan for BCM codes
- Swap receiver if possible
Repair notes
Replace keyless entry receiver module or repair antenna connection.
Other Body codes on this vehicle
B0001
Driver Frontal Stage 1 Deployment Control
B0001
Driver Frontal Stage 1 Deployment Control
B0002
Driver Frontal Stage 2 Deployment Control
B0002
Driver Frontal Stage 2 Deployment Control
B0003
Passenger Frontal Stage 1 Deployment Control
B0003
Passenger Frontal Stage 1 Deployment Control
B0004
Passenger Frontal Stage 2 Deployment Control
B0004
Passenger Frontal Stage 2 Deployment Control
B0005
Driver Knee Airbag Deployment Circuit
B0005
Driver Knee Airbag Deployment Circuit