2010 Porsche Panamera Turbo (970) V8-4.8L Turbo A L L Diagnostic Trouble Codes ( DTC ): P Code Charts Page 44
Fault effects
- Power supply switch-off, pressure regulator for system pressure and synchro selection
- Power supply switch-off, solenoid valves
- Pressure regulator for system pressure and synchro selection, switch-off
- Solenoid valves switch-off
- Last gear held
- Transmission limp-home indication in instrument cluster control unit
Pressure Regulator 7 (Hang-on Clutch), Short Circuit To B+
P17A7
Diagnostic information - PDK
Pressure regulator 7 (hang-on clutch), 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: P1832
- The following fault is not detected: P183A
- The following fault is not detected: P1842
Possible fault causes
- Line between pressure regulator 7 and PDK control unit, short circuit to B+
- Pressure regulator 7 faulty
- PDK control unit faulty
Fault setting conditions
- Internal current measurement, pressure regulator 7: current consumption > 850 mA
Fault effects
- Pressure regulator 7 switch-off
- Engaged gear is held until vehicle stops
- Transmission limp-home indication in instrument cluster control unit
Pressure Regulator 7 (Hang-on Clutch), Open Circuit
P17A7
Diagnostic information - PDK
Pressure regulator 7 (hang-on clutch), 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: P1832
- The following fault is not detected: P183A
- The following fault is not detected: P1842
Possible fault causes
- Open circuit in line between pressure regulator 7 and PDK control unit
- Pressure regulator 7 faulty
- PDK control unit faulty
Fault setting conditions
- Internal current measurement, pressure regulator 7: current consumption = 0 mA
- Line resistance between pressure regulator 7 and PDK control unit > 1 MOhm
Fault effects
- Pressure control, hang-on clutch switch-off
- Hang-on clutch opening
- Engaged gear is held until vehicle stops.
- Transmission limp-home indication in instrument cluster control unit
Pressure Regulator 7 (Hang-on Clutch), Short Circuit To Ground
