B0233
Rear Tail Lamp Circuit
The body control module has detected a fault in the rear tail lamp circuit. The lamp does not match the commanded state.
The body control module has detected a fault in the rear tail lamp circuit. The lamp does not match the commanded state.
Common causes
- high
Bulb burned out
One of the most commonly reported causes for this code — check this first.
Typical part cost: $10-110
- medium
Wiring open or socket corroded
A plausible cause — test and verify before replacing parts.
Typical part cost: $10-110
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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 B0233 mean?
B0233 means "Rear Tail Lamp Circuit". It is a generic OBD-II code that points to a fault in the body.
What are the most common causes of B0233?
bulb burned out; wiring open or socket corroded — 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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