2010 Porsche Panamera Turbo (970) V8-4.8L Turbo A L L Diagnostic Trouble Codes ( DTC ): P Code Charts Page 385
Fault effects
- Engaged gear is held until vehicle stops
- Start enable only in selector-lever position P
- Transmission limp-home indication in instrument cluster control unit
Pressure Sensor 3, Short Circuit To B+
P181C
Diagnostic information - PDK
Pressure sensor 3, 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
Possible fault causes
- Line between pressure sensor 2 and PDK control unit faulty
- Pressure sensor 2 faulty
- PDK control unit faulty
Fault setting conditions
- Pressure sensor 3, signal > 4.5 V
Fault effects
- Engaged gear is held until vehicle stops
- Start enable only in selector-lever position P
- Transmission limp-home indication in instrument cluster control unit
Setpoint Definitions
P181C
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
Pressure Sensor 3, Short Circuit to B+
P181C
Diagnostic information - PDK
Pressure sensor 3, 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
Possible fault causes
- Line between pressure sensor 3 and PDK control unit faulty
- Pressure sensor 3 faulty
- PDK control unit faulty
Fault setting conditions
- Pressure sensor 3, signal > 4.5 V
