B0111
Keyless Entry Receiver Circuit
2014-2021 Mazda Mazda6 2.5L 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
- B0002Driver Frontal Stage 2 Deployment Control
- B0003Passenger Frontal Stage 1 Deployment Control
- B0004Passenger Frontal Stage 2 Deployment Control
- B0005Driver Knee Airbag Deployment Circuit
- B0006Passenger Knee Airbag Deployment Circuit
- B0007Rear Left Side Airbag Deployment Circuit
- B0008Rear Right Side Airbag Deployment Circuit
- B0009Rear Center Airbag Deployment Circuit
- B0010Driver Side Airbag Deployment
B0111 on Other Vehicles
Common Questions
What does code B0111 mean on a 2014-2021 Mazda Mazda6?
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 Mazda6?
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 2014-2021 Mazda Mazda6?
Common causes of B0111 include: Faulty receiver module, Antenna disconnected, Wiring damage to receiver, Receiver power supply issue.