OBD-II code · Body
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.
Is it safe to drive with B0440?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyBluetooth module internal fault
- PossibleAntenna cable loose or disconnected
Symptoms
- Warning light or symbol related to the affected system
- Comfort or safety function impaired
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Best left to a mechanic
- Typical labour
- 0.5–2.5 h
- Emissions test
- Usually unaffected
- Parts involved
- Bluetooth Module, Infotainment Module, Bluetooth Antenna
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.