Signal Implausible

P0556 Signal Implausible

Diagnosis information - Control unit DME (DFI)

Brake vacuum sensor: implausible

Diagnostic conditions
- under the following conditions 5x while driving:
- Driving > 60 Second(s), at:
- Brake pedal not actuated

- then Driving with Brake pedal actuated,at:
- Vehicle speed > 50 km/h
- Brake pressure > 10 bar

- then Driving > 30 Second(s), at:
- Brake pedal not actuated

- then Driving with Brake pedal actuated,at:
- Vehicle speed > 50 km/h
- Brake pressure > 10 bar

Possible fault causes
- Vacuum system Faulty
- Brake booster Faulty
- Brake vacuum sensor Faulty

Fault setting condition(s)
- Vacuum is retained despite braking operations, at:
- Diagnostic conditions

Fault effects
- Start/stop system not active