Body Definition only

B0233: Rear Tail Lamp Circuit

Standardized SAE J2012 code · B02xx codes

What does B0233 mean?

The body control module has detected a fault in the rear tail lamp circuit. The lamp does not match the commanded state.

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 Wiring open or socket corroded

Likelihood is a general estimate across vehicles; your make and model may differ.

Add your car to see reports of B0233 on the same make and model first.

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