OBD-II code · Body
B0851 Right Brake Lamp Circuit
A fault has been detected in the right brake lamp circuit.
Is it safe to drive with B0851?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyBurnt out brake lamp bulb
Symptoms
- Warning light or symbol related to the affected system
- Comfort or safety function impaired
Repair at a glance
- Difficulty
- Easy
- DIY friendly
- Often, with basic tools
- Typical labour
- 0.2–1 h
- Emissions test
- Usually unaffected
- Parts involved
- Right Brake Lamp, Body Control Module
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.