B0122
Pedestrian Alert Speaker A
Fault on pedestrian alert speaker A — emits an artificial driving sound at low speed on EVs/hybrids (legally required, e.g. UNECE R138, FMVSS 141).
Fault on pedestrian alert speaker A — emits an artificial driving sound at low speed on EVs/hybrids (legally required, e.g. UNECE R138, FMVSS 141).
Common causes
- high
Speaker coil open
One of the most commonly reported causes for this code — check this first.
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 B0122 mean?
B0122 means "Pedestrian Alert Speaker A". It is a generic OBD-II code that points to a fault in the body.
What are the most common causes of B0122?
speaker coil open — 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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