B0440
Bluetooth Module Fault
The infotainment system has detected a fault in the Bluetooth module. Pairing with phones may fail or audio streaming drops out.
The infotainment system has detected a fault in the Bluetooth module. Pairing with phones may fail or audio streaming drops out.
Common causes
- high
Bluetooth module internal fault
One of the most commonly reported causes for this code — check this first.
Typical part cost: $110-880
- medium
Antenna cable loose or disconnected
A plausible cause — test and verify before replacing parts.
Typical part cost: $110-880
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First things to check
- 1Confirm the code with a scan tool and check for additional related codes.
- 2Inspect the relevant sensors, wiring, and connectors for damage or corrosion.
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Related codes
See related trouble codes
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Frequently asked questions
What does B0440 mean?
B0440 means "Bluetooth Module Fault". It is a generic OBD-II code that points to a fault in the body.
What are the most common causes of B0440?
bluetooth module internal fault; antenna cable loose or disconnected — these are the most commonly reported causes. Verify with a proper diagnosis before replacing parts, or use the Wrenchify app for a vehicle-specific diagnosis.
Can I keep driving with this code?
The vehicle is usually drivable for short distances, but the problem can worsen or affect emissions. Diagnose and repair as soon as practical. Use the Wrenchify app for a full diagnosis specific to your vehicle.
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