B0111
Keyless Entry Receiver Circuit
2016-2021 Mazda CX-3 2.0L I4
Low SeverityBodyGeneric (SAE)
Description
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.
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
B0111 on Other Vehicles
Common Questions
What does code B0111 mean on a 2016-2021 Mazda CX-3?
B0111 stands for "Keyless Entry Receiver Circuit". Malfunction in the keyless entry receiver module or its circuit. The receiver processes RF signals from the key fob.
What are the symptoms of B0111 on a Mazda CX-3?
Common symptoms of B0111 include: Remote lock/unlock not working, No response from any key fob, Physical key still works.
What causes B0111 on a 2016-2021 Mazda CX-3?
Common causes of B0111 include: Faulty receiver module, Antenna disconnected, Wiring damage to receiver, Receiver power supply issue.