2010 Porsche Panamera Turbo (970) V8-4.8L Turbo A L L Diagnostic Trouble Codes ( DTC ): P Code Charts Page 503
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, short circuit to B+
- Pressure regulator 2 faulty
- PDK control unit faulty
Fault setting conditions
- Internal current measurement, actuator solenoid R/P: current consumption = 0 mA
- Pressure regulator 2, control current > 850 mA
Fault effects
- Pressure regulator 2 switch-off
- 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
P0846
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
Open circuit:
- Setpoint resistance < 2 Ohm
Diagnosis Information - PDK (Dual-Clutch Transmission)
P0846
Diagnostic information - PDK
Pressure sensor clutch 2, signal implausible
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.
- Engine running
Possible fault causes
- Line between pressure sensor 2 and PDK control unit faulty
- Pressure sensor 2 faulty
- PDK control unit faulty
Fault setting conditions
- Measured pressure deviates from the internal plausibility check. Permitted limit was exceeded.
Fault effects
- Engaged gear is held until vehicle stops
- Moving off possible only in 3rd gear
- Only gears 1, 3, 5 and 7 are possible
- Start enable only in selector lever position P
- Transmission limp-home indication in instrument cluster control unit
Pressure Sensor 2, Short Circuit To B+
