2010 Porsche Panamera Turbo (970) V8-4.8L Turbo A L L Diagnostic Trouble Codes ( DTC ): P Code Charts Page 726
- No fault entered for: P1556, P1557, P1558
Possible fault causes
- Vacuum system leaks (See [Information])
- Vacuum pump Faulty
- Short circuit to B+ or open circuit in lines (Power supply or Activation Leakage diagnosis pump)
- Leakage diagnosis pump Faulty
INFORMATION
The system includes:
- mechanical Vacuum pump
- Leakage diagnosis pump
- Intake pipe switchover
- Exhaust flap (if present)
P2401
P2401
Diagnosis information - Control unit DME (DFI)
Final stage Leakage diagnosis pump, Below limit
Diagnostic conditions
- Short test Tank vent perform
or:
- Period since engine was started > 10 Second(s)
- Leakage diagnosis pump not activated
- No fault entered for: P1556, P1557, P1558
Possible fault causes
- Vacuum system leaks (See [Information])
- Vacuum pump Faulty
- Short circuit to ground (Activation Leakage diagnosis pump)
- Leakage diagnosis pump Faulty
INFORMATION
The system includes:
- mechanical Vacuum pump
- Leakage diagnosis pump
- Intake pipe switchover
- Exhaust flap (if present)
P2402
P2402
Diagnosis information - Control unit DME (DFI)
Final stage Leakage diagnosis pump
Diagnostic conditions
- Short test Tank tightness perform
or:
- Period since engine was started > 10 Second(s)
- Leakage diagnosis pump activated
- No fault entered for: P1556, P1557, P1558
Possible fault causes
- Vacuum system leaks (See [Information])
- Vacuum pump Faulty
- Short circuit to B+ or open circuit in lines (Power supply or Activation Leakage diagnosis pump)
- Leakage diagnosis pump Faulty
