C1201Krytyczny
Wspomaganie kierownicy elektryczne (EPS) — usterka
Podwozie
Sprawdź szczegóły →C1105
ŚredniTraction control disable lamp – short to positive / Right rear wheel speed sensor (Sensor 2). Fault in the electrical circuit of the stability control system.
OBD-II (EN): Right Rear Wheel Speed Sensor Circuit Short to Battery
Code C1105 indicates a fault in the electrical circuit of the traction control system – most often a short circuit of the TCS lamp circuit to supply voltage or a problem with the right rear wheel speed sensor. This may cause the stability system to disable and a warning light on the dashboard. Professional diagnosis with an OBD-II scanner is recommended, as the code may have different causes depending on the vehicle model.
Symptoms
Illuminated TCS (traction control) or ESP/VSC warning light on the dashboard. Possible deactivation of the traction control or stability control system. The traction control disable lamp may be constantly on or flashing without driver intervention. In some vehicles, lack of ABS/TCS system response when starting on a slippery surface.
Possible causes
• Short circuit of the traction control disable lamp signal wire to supply voltage (positive ground) • Damaged right rear wheel speed sensor (dirt, corrosion, mechanical damage) • Open or short circuit in the wiring harness leading to the sensor or TCS lamp • Damaged or corroded electrical connector in the sensor/lamp circuit • Malfunction of the ABS/TCS module (brake system controller)
Affected systems
ABS (system zapobiegania blokowaniu kół)TCS (kontrola trakcji)ESP/VSC (elektroniczny program stabilizacji)Obwód elektryczny deski rozdzielczej (lampki ostrzegawcze)Czujnik prędkości koła tylnego prawego
Related codes
C1100Krytyczny
Awaria obwodu przełącznika pompy ABS. Kod wskazuje na usterkę w układzie elektrycznym pompy hydraulicznej układu zapobiegającego blokowaniu kół (ABS).
Podwozie
Sprawdź szczegóły →Sources and further reading
Does code C1105 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.