C0035Wysoki
Czujnik prędkości koła lewego przedniego — usterka obwodu
Podwozie
Sprawdź szczegóły →U0210
KrytycznyLost Communication with Brake System Control Module B. The central ECU cannot establish communication with the additional brake module (Module B) via the CAN bus.
OBD-II (EN): Lost Communication with Brake Control Module B
Code U0210 means lost communication between the central control unit and the brake system module B (ABS/ESP) via the CAN bus. The most common causes are damaged wiring, corroded connectors, or a faulty brake module. Due to the impact on driving safety, immediate diagnosis at an authorized service center or workshop with a professional CAN-capable scanner is recommended.
Symptoms
Illuminated ABS, ESP/ESC, or parking brake warning light on the dashboard. Deactivation of ABS and Electronic Stability Program (ESP/ESC). Possible entry into limp mode. Increased stopping distance in emergency situations. Lack of system response to steering or braking inputs in adverse conditions. Possible flickering of dashboard warning lights.
Possible causes
• Damage or open circuit in CAN bus wiring (CAN-High or CAN-Low line) leading to brake module B • Corrosion or loose electrical connectors at the ABS/ESP module or in the communication harness • Damaged or burnt-out brake system control module B (ABS/ESP ECU) • Blown fuse for the brake module power supply • Damaged CAN bus terminating resistor (120 Ω) causing communication disruptions • Short circuit in the communication harness to ground or power positive
Affected systems
Related codes
C0040Wysoki
Czujnik prędkości koła prawego przedniego — usterka obwodu
Podwozie
Sprawdź szczegóły →U0121Wysoki
Utrata komunikacji z modułem ABS
Komunikacja sieciowa
Sprawdź szczegóły →U0100Krytyczny
Utrata komunikacji z ECM (sterownik silnika)
Komunikacja sieciowa
Sprawdź szczegóły →Does code U0210 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.