Hybspec

C0180

Wysoki

Code C0180 indicates a fault in the brake booster vacuum sensor circuit (BBV) – signal voltage too low. The chassis control module (EBCM/ABS) has registered a signal below the allowable range.

OBD-II (EN): Brake Boost Vacuum Sensor Circuit Low

Code C0180 signals a problem with the brake booster vacuum sensor circuit (BBV) – the brake system module detected signal voltage too low. This may indicate a faulty sensor, defective wiring, or a leak in the vacuum system. Due to the direct link to the braking system, immediate diagnosis at a service center is recommended.

Symptoms

Illuminated check engine light (MIL) or brake system warning light (ABS/ESP); increased brake pedal resistance or harder pedal than normal; possible extended stopping distance; brake booster warning on the dashboard; in some vehicles, deactivation of the ABS or ESP system.

Possible causes

• Damaged or faulty BBV (Brake Boost Vacuum) sensor – short to ground or open circuit in the signal circuit • Damaged wiring or connector of the BBV sensor – chafing, corrosion, broken wires • Leak in the brake booster vacuum system (cracked vacuum hose) • Faulty vacuum pump (Diesel or hybrid vehicles without natural intake manifold vacuum) • Malfunction of the EBCM/ABS module – in rare cases, an internal controller error

Affected systems

układ hamulcowywspomaganie hamulców (booster)ABSESP/ESCukład podciśnieniowyEBCM

Related codes

C0110Wysoki

Uszkodzenie obwodu silnika pompy ABS. Sterownik EBCM wykrył nieprawidłowość w obwodzie silnika pompy modulatora ciśnienia hamulców (BPMV).

Podwozie
Sprawdź szczegóły →
C0265Wysoki

Uszkodzenie obwodu przekaźnika silnika EBCM (Electronic Brake Control Module). Kod wskazuje na awarię przekaźnika zasilającego pompę silnika układu ABS.

Podwozie
Sprawdź szczegóły →

Does code C0180 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.