2010 Porsche Panamera Turbo (970) V8-4.8L Turbo A L L Diagnostic Trouble Codes ( DTC ): P Code Charts Page 525
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: P0964
- The following fault is not detected: P0966
- The following fault is not detected: P0967
Possible fault causes
- Shunt circuit in line between pressure regulator 2 and PDK control unit
- Pressure regulator 2 faulty
- PDK control unit faulty
Fault setting conditions
- Actual pressure regulator current > setpoint current (maximum deviation = 35 mA)
Fault effects
- Power supply switch-off, pressure regulator clutch 2
- Power supply switch-off, pressure regulator for lubrication pressure
- Pressure regulator clutch 2, switch-off
- Pressure regulator lubrication pressure, switch-off
- Only gears 1, 3, 5, 7 and R are possible
- Upward limitation of cooling control pressure
- Last gear held
- Transmission limp-home indication in instrument cluster control unit
Pressure Regulator 2 (Clutch 2), Open Circuit
P0964
Diagnosis information - PDK
Pressure regulator 2 (clutch 2), 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: P1831
- The following fault is not detected: P1839
Possible fault causes
- Line between pressure regulator 2 and PDK control unit faulty
- Pressure regulator 2 faulty
- PDK control unit faulty
Fault setting conditions
- Internal current measurement, pressure regulator 2: current consumption = 0 mA
- Line resistance between pressure regulator 2 and PDK control unit > 1 MOhm
Fault effects
- Pressure control switch-off, clutch 2
- Engaged gear is held until vehicle stops.
- Moving off possible only in 3rd gear
- Transmission limp-home indication in instrument cluster control unit
Setpoint Definitions
P0964
Setpoint definitions
NOTE: The specified values and value ranges correspond to the OK state in each case.
Line test setpoints
Short circuit to B+:
- Setpoint voltage -0.5 V --> +0.5 V
Short circuit to ground:
- Setpoint resistance > 0.9 MOhm
