OBD-II code · Body
B0123 Pedestrian Alert Speaker B
Fault on pedestrian alert speaker B (second/redundant speaker).
Is it safe to drive with B0123?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelySpeaker coil open
Symptoms
- Warning light or symbol related to the affected system
- Comfort or safety function impaired
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Often, with basic tools
- Typical labour
- 0.5–3 h
- Emissions test
- Usually unaffected
- Parts involved
- Pedestrian Alert Speaker B, Speaker Wiring
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.