C0035Wysoki
Czujnik prędkości koła lewego przedniego — usterka obwodu
Podwozie
Sprawdź szczegóły →C0230
WysokiFault in the wheel speed sensor – ABS system circuit. The controller has detected an incorrect signal or an open circuit in the wheel speed sensor circuit, preventing the anti-lock braking system from functioning correctly.
OBD-II (EN): Wheel Speed Sensor Circuit Malfunction
Code C0230 signals a problem with the wheel speed sensor in the ABS system – the controller detected an incorrect signal, which may result from a faulty sensor, an open circuit in the wiring, or a worn tone ring on the hub. This fault disables ABS protection and may affect ESP and traction control operation, directly reducing driving safety. Diagnosis at a workshop equipped with an ABS scanner capable of live data reading is recommended as soon as possible.
Symptoms
Illuminated ABS warning light on the dashboard; possible deactivation of the ESP/VSC/TCS system; extended stopping distance on slippery surfaces; lack of ABS system operation during hard braking; possible brake system warning light; pulsation or abnormal brake operation in some vehicles.
Possible causes
• Damaged or worn wheel speed sensor (magnetic or Hall effect) • Open or short circuit in the sensor wiring harness (mechanical damage, connector corrosion) • Contaminated or damaged tone ring (encoder) on the hub or joint • Excessive wheel bearing hub play causing an irregular signal • Malfunction of the ABS module (EBCM) – rare, after excluding other causes • Loose or corroded electrical connector in the sensor circuit
Affected systems
ABS (Anti-lock Braking System)ESP / ESC (Electronic Stability Control)TCS (Traction Control System)EBD (Electronic Brake-force Distribution)Układ hamulcowy
Related codes
C0040Wysoki
Czujnik prędkości koła prawego przedniego — usterka obwodu
Podwozie
Sprawdź szczegóły →U0121Wysoki
Utrata komunikacji z modułem ABS
Komunikacja sieciowa
Sprawdź szczegóły →Sources and further reading
Does code C0230 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.