2010 Porsche Panamera Turbo (970) V8-4.8L Turbo A L L Diagnostic Trouble Codes ( DTC ): P Code Charts Page 238
Fuel pump control unit: Activation
Diagnostic conditions
- Engine start (Electric fuel pump activated)
Possible fault causes
- Loose contact or corrosion on connectors or lines
- Open circuit Control lead Control unit DME (DFI) --> Fuel pump control unit
- Power or ground supply faulty Fuel pump control unit
- Fuel pump control unit Faulty
P025C
P025C
Diagnosis information - Control unit DME (DFI)
Fuel pump control unit: Activation
Diagnostic conditions
- Engine start (Electric fuel pump activated)
Possible fault causes
- Short circuit to B+ Control lead Control unit DME (DFI) --> Fuel pump control unit
- Short circuit to ground Control lead Control unit DME (DFI) --> Fuel pump control unit
- Fuel pump control unit Faulty
P025D
P025D
Diagnosis information - Control unit DME (DFI)
Fuel pump control unit: Activation
Diagnostic conditions
- Engine start (Electric fuel pump activated)
Possible fault causes
- Short circuit to B+ Control lead Control unit DME (DFI) --> Fuel pump control unit
- Short circuit to ground Control lead Control unit DME (DFI) --> Fuel pump control unit
- Fuel pump control unit Faulty
P0030
P0030
Diagnosis information - Control unit DME (DFI)
Final stage Oxygen sensor heater Oxygen sensor in front of catalytic converter Bank 1
NOTE
Separated plug connection = open reference-air duct.
Damage to oxygen sensor.
- DO NOT use spray, grease, fluid or similar products on the oxygen sensor plug connections.
INFORMATION
- Do not interchange the oxygen sensor in front of the catalytic converter with the sensor behind the catalytic converter as this will result in
implausible fault entries.
- The plugs themselves are coded and cannot be interchanged.
Diagnostic conditions
- Engine running > 10 Second(s)
Possible fault causes
- Loose contact or corrosion on connectors or lines
- Short circuit to B+/ground or open circuit in the line (Power supply or Activation)
- Oxygen sensor in front of catalytic converter Bank 1 Faulty
