U0140Średni
Utrata komunikacji z BCM (moduł nadwozia)
Komunikacja sieciowa
Sprawdź szczegóły →U0455
WysokiInvalid Data Received from Body Control Module (BCM) via the CAN bus. The receiving module detected data inconsistent with the expected range or communication protocol.
OBD-II (EN): Invalid Data Received from Body Control Module (BCM) via CAN Bus
Code U0455 means that one of the vehicle's modules has received erroneous or invalid data from the Body Control Module (BCM) via the CAN network. The cause may be damage to the BCM itself, a problem with the communication bus wiring, or corrosion of electrical connectors. Due to the complexity of the vehicle's communication network, diagnostics require specialized equipment and technical knowledge.
Symptoms
Possible symptoms noticeable by the driver: random or non-functional body electrical functions (lighting, wipers, central locking, power windows), flashing or non-functional dashboard indicators, Check Engine light or communication network light on, intermittent loss of comfort and safety functions (e.g., anti-theft system, airbag module may report related errors), possible difficulty starting the vehicle if BCM is involved in engine authorization.
Possible causes
• Faulty or malfunctioning Body Control Module (BCM) – internal failure or software corruption • Open circuit, short circuit, or increased resistance on CAN-High / CAN-Low lines between BCM and other modules • Damaged or corroded BCM module electrical connector • CAN bus terminator failure (120 Ω resistor) causing data transmission errors • Electromagnetic interference or transient voltage spikes in the electrical system (e.g., after battery discharge or improper charger connection) • Software version conflicts after unsuccessful BCM firmware update
Affected systems
Magistrala CAN (sieć komunikacyjna)Moduł sterowania nadwoziem (BCM)System centralnego zamknięciaOświetlenie pojazduSzyby i lusterka elektryczneSystem antykradzieżowy (immobilizer)Tablica rozdzielcza / zestaw wskaźnikówSystem klimatyzacji i ogrzewania
Related codes
B1000Wysoki
Moduł sterowania nadwoziem (BCM) — usterka wewnętrzna
Nadwozie
Sprawdź szczegóły →U0100Krytyczny
Utrata komunikacji z ECM (sterownik silnika)
Komunikacja sieciowa
Sprawdź szczegóły →U0001Krytyczny
Magistrala CAN High Speed — brak komunikacji
Komunikacja sieciowa
Sprawdź szczegóły →Does code U0455 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.