B0100Niski
Obwód zewnętrznego oświetlenia — usterka
Nadwozie
Sprawdź szczegóły →B0300
WysokiCode B0300 indicates a fault in the Body Control Module (BCM), which is responsible for the vehicle's electrical functions such as lighting, windows, and central locking.
Code B0300 indicates a problem with the Body Control Module (BCM). This can cause failure of lights, windows, central locking, and other vehicle electrical systems. To avoid costly mistakes, professional diagnostics with appropriate equipment are recommended.
Symptoms
Incorrect operation of body systems: lights, power windows, central locking, wipers not working; possible error messages on the dashboard; intermittent or complete activation of the alarm; problems with air conditioning or heating (if controlled by the BCM).
Possible causes
Faulty Body Control Module (BCM) Broken or corroded wires in the body harness Poor ground connection or module power supply Short circuit in the module output circuits Damaged fuses or relays related to the BCM Software error requiring an update
Affected systems
moduł sterowania nadwozia (BCM)oświetlenieszyby elektrycznecentralny zamekAlarm / immobilizerwycieraczkiklimatyzacja (jeśli sterowana przez BCM)
Related codes
B1000Wysoki
Moduł sterowania nadwoziem (BCM) — usterka wewnętrzna
Nadwozie
Sprawdź szczegóły →Suggested Hybspec services
Based on the systems affected by this code, we will most likely start with:
Does code B0300 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.