2010 Porsche Panamera Turbo (970) V8-4.8L Turbo A L L Diagnostic Trouble Codes ( DTC ): P Code Charts Page 665
Fault effects
- Power supply switch-off, pressure regulator clutch 1
- Pressure regulator, clutch 1, switch-off
- No gear pre-selection
- No R gear
- Only gears 2, 4 and 6 are possible
- Transmission limp-home indication in instrument cluster control unit
Power Supply For Pressure Regulators 2 (Clutch 2) And 3 (Lubrication Pressure/Cooling
Pressure), Open Circuit
P1831
Diagnosis information - PDK
Power supply for pressure regulators 2 (clutch 2) and 3 (lubrication pressure/cooling pressure), open circuit
Diagnostic conditions
The control unit initially tests internal function sequences when the ignition is switched on (terminal 15). If they are OK, all diagnosable outputs are
then tested and any faults are stored.
- Ignition on
- The following fault is not detected: P1752
Possible fault causes
- Line between pressure regulator 2 and PDK control unit faulty
- Line between pressure regulator 3 and PDK control unit faulty
- Pressure regulator 2 or 3 faulty
- PDK control unit faulty
Fault setting conditions
- Internal current measurement for pressure regulators 2 and 3: current consumption = 0 mA
Fault effects
- Power supply switch-off, pressure regulators 2 and 3
- Pressure regulators 2 and 3 switch-off
- No gear preselection
- Only gears 1, 3, 5 and 7 are possible
- White transmission limp-home indication in instrument cluster
Power Supply For Pressure Regulators 2 (Clutch 2) And 3 (Lubrication Pressure/Cooling
Pressure), Short Circuit To B+
P1831
Diagnosis information - PDK
Power supply for pressure regulators 2 (clutch 2) and 3 (lubrication pressure/cooling pressure), short circuit to B+
Diagnostic conditions
The control unit initially tests internal function sequences when the ignition is switched on (terminal 15). If they are OK, all diagnosable outputs are
then tested and any faults are stored.
- Ignition on
- The following fault is not detected: P1752
Possible fault causes
- Line between pressure regulator 2 and PDK control unit faulty
- Line between pressure regulator 3 and PDK control unit faulty
- Pressure regulator 2 or 3 faulty
- PDK control unit faulty
Fault setting conditions
- Actual measured voltage HS2 > 4 V
Fault effects
- Power supply switch-off, pressure regulators 2 and 3
- Pressure regulators 2 and 3 switch-off
- No gear preselection
