¿Cuáles son las causas del código C0021?

Vacuum leak in the brake booster system. Faulty brake booster diaphragm. Low engine vacuum. Problem with the brake booster control valve. Internal brake booster failure

¿Qué síntomas produce el código C0021?

Brake pedal feels excessively hard to press. Increased stopping distance. Brake warning light may illuminate. Possible hissing sound from the engine bay

C0021 — Brake Booster Performance

No conducir — requiere atención inmediata

Descripción

This code indicates a performance issue with the brake booster. The brake booster helps you apply less force to the brake pedal, so a problem here means your brakes might feel harder to press.

Causas comunes

Vacuum leak in the brake booster system
Faulty brake booster diaphragm
Low engine vacuum
Problem with the brake booster control valve
Internal brake booster failure

Síntomas

Brake pedal feels excessively hard to press
Increased stopping distance
Brake warning light may illuminate
Possible hissing sound from the engine bay