B0100
NiskiExterior lighting circuit — malfunction
OBD-II (EN): Exterior Lighting Circuit Malfunction
Code B0100 — Exterior lighting circuit — malfunction. Symptoms: exterior light not working. Possible cause: blown bulb. Professional diagnosis recommended.
Symptoms
Exterior light not working, lighting warning light
Possible causes
Blown bulb, faulty lighting control module, connector corrosion
Affected systems
NadwozieOświetlenie
Tags and synonyms
Does code B0100 require professional diagnostics?
The code alone is not enough. To find the cause, you need to read live data, check freeze frame conditions, and compare with vehicle behavior. Book a diagnostic session.