Body
Definition only
B0235: Brake Lamp Circuit
Standardized SAE J2012 code · B02xx codes
What does B0235 mean?
The body control module has detected a fault in the brake lamp circuit. One or more brake lamps do not match the commanded state — a safety-relevant fault.
The code tells you which monitor failed, not which part is broken. Test before replacing parts.
Symptoms
- Warning light or symbol related to the affected system
- Comfort or safety function impaired
Common causes
- High Bulb burned out
- Medium Brake light switch failed
Likelihood is a general estimate across vehicles; your make and model may differ.
Add your car to see reports of B0235 on the same make and model first.
B0235 in the community
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